Product Image

Power Teen for Her Natural Wild Berry Flavor

NaturesPlus Source of Life
4.8
★ ★ ★ ★ ★
(3899 ratings)
Vitamin K 80 mcg
Zinc 15 mg
Molybdenum 37.5 mcg
Iron 9 mg
Chromium 60 mcg
Product Image
Score69
Broad teen nutrition and active folate forms are strengths, but duplicate label entries, hidden blend doses, and included iron require care.
How scoring works
Quantity:60 Tablet(s) • (30 servings)
Goals:
General Health
Immunity
Hair Health
Skin Health

Score 69

Broad teen nutrition and active folate forms are strengths, but duplicate label entries, hidden blend doses, and included iron require care.
How scoring works
$22.06($0.73 per serving)
iHerb
$ 22.06
Pure Formulas
$ 22.06
Vitacost
$ 22.19
Report prices

Analysis

Active folate and B12 join vitamin D3, K2, calcium, iron, and zinc in a broad teen multivitamin. The combination is most useful for filling dietary gaps rather than directly improving focus or appearance.

Repeated mineral entries make it unclear whether amounts are totals or duplicate forms. A proprietary feminine complex also prevents an ingredient-by-ingredient dose assessment.

The flavored two-tablet serving may help adherence for teens who need broad coverage. Included iron is useful only when intake or status supports a need, so it should not be stacked automatically.

Who is it for
  • Teen girls with broad dietary gaps
  • Families seeking active folate and B12 forms
Best for
  • General teen nutrition
  • Immune and hair-supporting micronutrients

Pros

  • Uses methylfolate and methylcobalamin
  • Includes D3 and MK-7
  • Broad vitamin and mineral coverage

Cons

  • Duplicate mineral entries obscure totals
  • Feminine complex doses are hidden
  • Weak direct support for mental focus

Warnings

  • Iron should be used according to a demonstrated need and not combined casually with another iron supplement
  • Vitamin K2 can interfere with warfarin-type anticoagulants
  • Verify the actual mineral totals before stacking zinc or iron products

Nutrient quality

76 High impact

Useful vitamin forms and relevant iron support the teen-focused formula. Weak major-mineral dosing and opaque extras reduce its nutritional depth.

Ingredient transparency

61 Moderate impact

Most vitamin and mineral amounts are visible. The opaque complex, incomplete directions, and absent non-active ingredients leave important gaps.

Customer satisfaction

74 High impact

The aggregate rating is favorable and backed by a very large review volume. No specific comments are available to assess recurring problems or real-world fit.

Value for money

68 High impact

Core vitamins and iron provide fair value for a teen formula. Weak major minerals and opaque add-ons reduce the return from each serving.

Report analysis

Goals

General Health
General Health
Impact
Highest effect
A- Goal FitB Strength of SupportB+ CoverageB Formula Quality
Folate · 667 mcg DFEVitamin B12 · 7.5 mcgVitamin D · 12.5 mcgMagnesium · 10 mgVitamin K · 80 mcgSelenium · 35 mcgZinc · 15 mgVitamin C · 60 mg

The broad vitamin and mineral profile is well aligned with filling nutritional gaps during adolescence. Core vitamins and minerals have established nutritional roles, while the small proprietary complex contributes less certain evidence.

Most vitamins and zinc have useful maintenance amounts, but magnesium and potassium are token additions and zinc partly uses oxide. Methylfolate, methylcobalamin, vitamin D3, and MK-7 are favorable forms, while mixed oxide minerals and a proprietary blend reduce precision.

Study evidence
Folate Supportive 80 studies
Magnesium Supportive 114 studies
Vitamin D Supportive 115 studies
Zinc Supportive 60 studies
Immunity
Immunity
Impact
Highest effect
A- Goal FitB Strength of SupportA- CoverageB Formula Quality
Magnesium · 10 mgVitamin C · 60 mgZinc · 15 mgVitamin A · 1500 mcg RAEVitamin D · 12.5 mcgSelenium · 35 mcg

Vitamin A, vitamin D3, zinc, selenium, and vitamin C provide broad nutritional support for immune maintenance. Zinc reaches a meaningful amount, while the other immune nutrients are more moderate.

Zinc oxide weakens the mixed zinc form, and a proprietary feminine blend is not fully disclosed. The chewable is better suited to broad daily nutrition than to intensive short-term immune support.

Study evidence
Selenium Mixed 37 studies
Vitamin A Supportive 107 studies
Vitamin C Supportive 53 studies
Vitamin D Supportive 85 studies
Zinc Supportive 73 studies
Hair Health
Hair Health
Impact
High effect
B+ Goal FitC+ Strength of SupportB- CoverageC Formula Quality
Biotin · 63 mcgVitamin D · 12.5 mcgZinc · 15 mgIron · 9 mgVitamin C · 60 mg

The teen multivitamin provides reasonable nutritional support for hair maintenance. Iron, zinc, vitamin D3, methylfolate, methylcobalamin, vitamin C, selenium, and biotin cover several deficiency pathways.

Iron and biotin are modest, while zinc uses a mixed source that includes poorly absorbed oxide. It provides nutritional coverage rather than a focused hair-growth strategy.

Study evidence
Biotin Supportive 4 studies
Iron Disputed 25 studies
Selenium Disputed 7 studies
Vitamin C Mixed 5 studies
Zinc Supportive 22 studies
Skin Health
Skin Health
Impact
Moderate effect
C Goal FitC- Strength of SupportC+ CoverageC Formula Quality
Zinc · 15 mgVitamin C · 60 mgSelenium · 35 mcgVitamin E · 20 mg alpha-TE

Zinc, vitamins A, C, and E, and a blemish-focused blend offer several skin-relevant supports. The broad teen multivitamin does not provide collagen, ceramides, hyaluronic acid, or another strong structural active.

Zinc reaches a maintenance amount, but combining aspartate with oxide lowers form quality. The hidden blemish blend and many general nutrients make skin-specific potency difficult to assess.

Study evidence
Vitamin C Supportive 53 studies
Zinc Supportive 66 studies

Ingredients

IngredientAmount per serving
Calories
10 Calorie(s)
Total Carbohydrates
3 Gram(s)
Vitamin A (Beta-Carotene)
 1500 mcg RAE
Vitamin C (Ascorbic Acid)
 60 mg
Vitamin D3 (Lichen)
 12.5 mcg
Vitamin E (D-Alpha-Tocopheryl Acetate)
 20 mg alpha-TE
Vitamin K2 (Menaquinone-7)
 80 mcg
Thiamine (Thiamine Hydrochloride, Vitamin B1)
 1.9 mg
Riboflavin (Vitamin B2)
 2.1 mg
Niacin (Niacinamide)
 25 mg NE
Vitamin B6 (Pyridoxine Hydrochloride)
 2.5 mg
Folate (Calcium L-5-Methyltetrahydrofolate)
 667 mcg DFE
Vitamin B12 (Methylcobalamin)
 7.5 mcg
Biotin
63 mcg
Pantothenic Acid (Calcium Pantothenate)
 12.5 mg
Choline (Choline Bitartrate)
 10 mcg
Calcium (Calcium Citrate, Dicalcium Phosphate)
 120 mg
Iron (Iron Fumarate, Iron Gluconate)
 9 mg
Magnesium (Magnesium Citrate, Magnesium Oxide)
 10 mg
Zinc (Zinc Aspartate, Zinc Oxide)
 15 mg
Selenium (Selenomethionine)
 35 mcg
Manganese (Manganese Gluconate)
 1 mg
Chromium (Chromium Picolinate)
 60 mcg
Molybdenum (Sodium Molybdate)
 37.5 mcg
Potassium (Potassium Citrate)
 1.4 mg
Feminine Complex with BlemiShield
110 mg
Lemon Bioflavonoid Complex (Citrus limon)
 40 mg
Gluten Free Sugar Free Children 4+ Vegetarian
Report overview
Vitamin K (Menaquinone-7) · 80 mcg OverallScore70
C+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD+ Value

Menaquinone-7 provides the preferred long-lasting vitamin K2 form. The 80 mcg MK-7 dose provides maintenance support below the clinical range. Vitamin K can reduce warfarin's anticoagulant effect, so users of this medicine need clinician-guided dosing.

View ingredientView products
Zinc (Zinc Aspartate, Zinc Oxide) · 15 mg OverallScore59
D- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value
The mixed zinc source is less convincing because useful aspartate is paired with poorly absorbed oxide. The pressed-tablet format is conventional, but it may require more binders than a capsule. Cost efficiency is weak for the zinc delivered, so the broader teen multivitamin must provide the main value.
View ingredientView products
Molybdenum (Sodium Molybdate) · 37.5 mcg OverallScore58
C- Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyD+ Value

The thirty-seven and a half mcg serving falls below the effective target for focused molybdenum support. Sodium molybdate is a highly soluble form with reliable absorption. The generic sodium molybdate source has no verified chelation brand. Cost sits in an average tier, but the molybdenum serving is underdosed.

View ingredientView products
Loading alternative details
68 Performance

Power Teen for Him Natural Wild Berry Flavor

NaturesPlus Source of Life
<p>The companion teen formula keeps methylfolate, methylcobalamin, MK-7, chromium, and molybdenum while using less iron. Its male-focused profile and opaque BlemiShield and amino-acid additions do not match every user of the original.</p>
80 Performance

One Daily Multivitamin for Women

NATURELO Premium Supplements
<p>The broad formula improves mineral forms with chelated zinc and selenium while retaining MK-7, methylfolate, methylcobalamin, and active B6. Calcium and magnesium remain modest, the produce blend has no useful amount, and the adult positioning is less age-specific.</p>
74 Performance

Raw One for Women

Garden of Life Vitamin Code
<p>The one-daily formula provides broad vitamin coverage with methylcobalamin, vitamin D3, and chelated minerals. Iron and zinc are lower than in the original, while the small fruit, vegetable, probiotic, and enzyme blends add limited depth.</p>
71 Budget

Kid Vits Berry Blast

NOW
<p>The lower-cost multivitamin retains broad vitamin coverage and uses iron bisglycinate plus zinc bisglycinate. Its iron amount is lower and it uses vitamin D2 and cyanocobalamin, while repeated niacin entries and substantial folate create label concerns for routine teen use.</p>
78 Budget

Women's One Daily

INNATE Response Formulas
<p>The economical one-daily formula supplies 9 mg iron bisglycinate, 9 mg zinc bisglycinate, and several other chelated minerals. Folic acid and cyanocobalamin are less refined than the original methylfolate and methylcobalamin, and the product is positioned for adults rather than teens.</p>
81 Budget

PreNatal with Folic Acid

21st Century
<p>The low-cost tablet provides broad vitamins plus substantial iron, folate, calcium, and zinc. Those prenatal amounts are not a routine substitute for a teen multivitamin and may be excessive when pregnancy-specific nutrition is not needed.</p>
79 Value

One Daily Multivitamin for Women

NATURELO Premium Supplements
<p>MK-7, methylfolate, methylcobalamin, active B6, and several chelated minerals provide strong ingredient quality at a lower serving cost. The adult formula is not teen-specific, and its calcium, magnesium, and unquantified produce blend remain weak points.</p>
74 Value

Women's One Daily

MegaFood
<p>The formula preserves broad daily coverage with 9 mg iron bisglycinate, 9 mg zinc bisglycinate, and several chelated trace minerals. Conventional folic acid and cyanocobalamin are weaker choices than the original forms, but the lower serving cost improves value.</p>
73 Value

Vitamin D K2 & Zinc

Amen
<p>The concise formula uses MK-7 and chelated zinc with clear amounts, avoiding an opaque multivitamin blend. Its vitamin D3 and zinc amounts are aggressive for routine use, and the narrow formula cannot replace the original iron, B vitamins, or other minerals.</p>
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
    Bo Y; Xu H; Zhang H; Zhang J; Wan Z; Zhao X; Yu Z · Nutrients · 2022
    Cohort study55,569 participantsGeneral Health forFolate
  2. The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
    Schorah CJ; Devitt H; Lucock M; Dowell AC · European journal of clinical nutrition · 1998
    Randomized trial119 participantsGeneral Health forFolate
  3. Associations of Serum Folate and Homocysteine Concentrations with All-Cause, Cardiovascular Disease, and Cancer Mortality in Men and Women in Korea: the Cardiovascular Disease Association Study.
    Song S; Song BM; Park HY · The Journal of nutrition · 2023
    Cohort study21,260 participantsGeneral Health forFolate
  4. The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
    Seyoum Tola F · Medicine · 2024
    Systematic reviewGeneral Health forFolate
  5. Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.
    Colapinto CK; O'Connor DL; Sampson M; Williams B; Tremblay MS · Journal of public health (Oxford, England) · 2017
    Systematic review71,847 participants46 studies pooledGeneral Health forFolate
  6. Perioperative systemic magnesium to minimize postoperative pain: a meta-analysis of randomized controlled trials.
    De Oliveira GS; Castro-Alves LJ; Khan JH; McCarthy RJ · Anesthesiology · 2013
    Meta-analysis1,257 participants20 studies pooledGeneral Health forMagnesium
  7. Long-term outcome after intravenous magnesium sulphate in suspected acute myocardial infarction: the second Leicester Intravenous Magnesium Intervention Trial (LIMIT-2).
    Woods KL; Fletcher S · Lancet (London, England) · 1994
    Randomized trial2,316 participantsGeneral Health forMagnesium
  8. Association of magnesium sulfate use with mortality in critically ill patients with sepsis: a retrospective propensity score-matched cohort study.
    Gu WJ; Duan XJ; Liu XZ; Cen Y; Tao LY; Lyu J; Yin HY · British journal of anaesthesia · 2023
    Cohort study10,999 participantsGeneral Health forMagnesium
  9. Hypomagnesemia and Mortality in Incident Hemodialysis Patients.
    Li L; Streja E; Rhee CM; Mehrotra R; Soohoo M; Brunelli SM; Kovesdy CP; Kalantar-Zadeh K · American journal of kidney diseases : the official journal of the National Kidney Foundation · 2016
    Cohort study9,359 participantsGeneral Health forMagnesium
  10. The effects of magnesium supplementation on abnormal uterine bleeding, alopecia, quality of life, and acne in women with polycystic ovary syndrome: a randomized clinical trial.
    Jaripur M; Ghasemi-Tehrani H; Askari G; Gholizadeh-Moghaddam M; Clark CCT; Rouhani MH · Reproductive biology and endocrinology : RB&E · 2022
    Randomized trial64 participantsGeneral Health forMagnesium
  11. Vitamin D supplementation for prevention of mortality in adults.
    Bjelakovic G; Gluud LL; Nikolova D; Whitfield K; Wetterslev J; Simonetti RG; Bjelakovic M; Gluud C · The Cochrane database of systematic reviews · 2014
    Meta-analysis95,286 participants159 studies pooledGeneral Health forVitamin D
  12. Effect of vitamin D on gastrointestinal symptoms and health-related quality of life in irritable bowel syndrome patients: a randomized double-blind clinical trial.
    Abbasnezhad A; Amani R; Hajiani E; Alavinejad P; Cheraghian B; Ghadiri A · Neurogastroenterology and motility · 2018
    Randomized trial90 participantsGeneral Health forVitamin D
  13. The impact of vitamin D administration on mortality in COVID-19 patients: a systematic review and meta-analysis of randomized controlled trials.
    Kow CS; Ramachandram DS; Hasan SS; Wong Z; Thiruchelvam K · Inflammopharmacology · 2024
    Meta-analysis2,495 participants19 studies pooledGeneral Health forVitamin D
  14. Vitamin D Status and Mortality: A Systematic Review of Observational Studies.
    Heath AK; Kim IY; Hodge AM; English DR; Muller DC · International journal of environmental research and public health · 2019
    Systematic review84 studies pooledGeneral Health forVitamin D
  15. Meta-analysis of long-term vitamin D supplementation on overall mortality.
    Zheng Y; Zhu J; Zhou M; Cui L; Yao W; Liu Y · PloS one · 2014
    Meta-analysis42 studies pooledGeneral Health forVitamin D
  16. Effectiveness of sodium bicarbonate and zinc chloride mouthwashes in the treatment of oral mucositis and quality of life in patients with cancer under chemotherapy.
    Mohammadi F; Oshvandi K; Kamallan SR; Khazaei S; Ranjbar H; Ahmadi-Motamayel F; Gillespie M; Jenabi E; Vafaei SY · Nursing open · 2022
    Randomized trial144 participantsGeneral Health forZinc
  17. Zinc supplementation in young children with acute diarrhea in India.
    Sazawal S; Black RE; Bhan MK; Bhandari N; Sinha A; Jalla S · The New England journal of medicine · 1995
    Randomized trial937 participantsGeneral Health forZinc
  18. Associations of mortality with ocular disorders and an intervention of high-dose antioxidants and zinc in the Age-Related Eye Disease Study: AREDS Report No. 13.
    Clemons TE; Kurinij N; Sperduto RD; AREDS Research Group · Archives of ophthalmology (Chicago, Ill. : 1960) · 2004
    Randomized trial4,753 participantsGeneral Health forZinc
  19. Effects of zinc and probiotic co-supplementation on inflammation, gastrointestinal symptoms, quality of life, and mood in irritable bowel syndrome patients.
    Rezazadegan M; Soheilipour M; Amani R · Scientific reports · 2026
    Randomized trial84 participantsGeneral Health forZinc
  20. Effect of zinc sulfate supplementation on premenstrual syndrome and health-related quality of life: Clinical randomized controlled trial.
    Siahbazi S; Behboudi-Gandevani S; Moghaddam-Banaem L; Montazeri A · The journal of obstetrics and gynaecology research · 2018
    Randomized trial142 participantsGeneral Health forZinc
  21. The Role of Sesbania grandiflora-Derived Biotin and Bambusa arundinacea-Derived Silica Extracts in Promoting Hair, Skin, and Nail Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
    Patel MN; Maheshvari J; Patel N · Cureus · 2025
    Randomized trial105 participantsHair Health forBiotin
  22. Low serum biotinidase activity in children with valproic acid monotherapy.
    Schulpis KH; Karikas GA; Tjamouranis J; Regoutas S; Tsakiris S · Epilepsia · 2001
    Clinical trial125 participantsHair Health forBiotin
  23. Vitamins A, B, C, and D: A Short Review for the Dermatologist.
    Coerdt KM; Goggins CA; Khachemoune A · Alternative therapies in health and medicine · 2021
    Narrative reviewHair Health forBiotin
  24. The Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.
    Soleymani T; Lo Sicco K; Shapiro J · Journal of drugs in dermatology : JDD · 2018
    Narrative reviewHair Health forBiotin
  25. The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
    Davidovici B; Drutin Y; Ben-Tov A; Mimouni D; Wohl Y · Journal of personalized medicine · 2026
    Case-control study100,203 participantsHair Health forIron
  26. Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
    Treister-Goltzman Y; Yarza S; Peleg R · Skin appendage disorders · 2022
    Meta-analysis10,029 participants36 studies pooledHair Health forIron
  27. Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.
    Chinisaz F; Maleki T; Najjari K; Miratashi Yazdi SA · Obesity surgery · 2026
    Cohort study261 participantsHair Health forIron
  28. Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium.
    Thamotharan N; Harikumar MV; Sundaram M; Swaminathan A; Rangarajan S · Cureus · 2026
    Cross-sectional study100 participantsHair Health forIron
  29. Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia.
    Lin CS; Chan LY; Wang JH; Chang CH · Tzu chi medical journal · 2023
    Cohort study155 participantsHair Health forIron
  30. Beyond Efficacy: 0.6% Selenium Disulfide Shampoo Matches 2% Ketoconazole for Seborrheic Dermatitis with Superior Cosmesis.
    Farris PK; Barbosa V; Houshman EB; Kovylkina N · Journal of drugs in dermatology : JDD · 2026
    Randomized trial87 participantsHair Health forSelenium
  31. Selenium Disulfide-based shampoo applied for 4 weeks significantly improves dandruff and seborrheic dermatitis.
    Turcu G; Artenie C; Nowicka D; Arenbergerová M; Lazaridou E; Khobzei K; Ataseven A; Part M; Leclerc-Mercier S · European journal of dermatology : EJD · 2023
    Observational study1,407 participantsHair Health forSelenium
  32. A Comparative Randomized Clinical Study Assessing the Efficacy of a 1% Selenium Disulfide-Based Shampoo versus 2% Ketoconazole Shampoo in Subjects with Moderate to Severe Scalp Seborrheic Dermatitis.
    Barbosa V; Melo DF; Vañó-Galván S; Lutchmanen-Kolanthan V; Sant'Anna B; Leclerc-Mercier S; Reygagne P · Skin appendage disorders · 2025
    Randomized trial64 participantsHair Health forSelenium
  33. Changes of serum trace elements level in patients with alopecia areata: A meta-analysis.
    Jin W; Zheng H; Shan B; Wu Y · The Journal of dermatology · 2018
    Meta-analysis764 participantsHair Health forSelenium
  34. Scientific opinion on the tolerable upper intake level for selenium.
    EFSA Panel on Nutrition, Novel Foods and Food Allergens (NDA); Turck D; Bohn T; Castenmiller J; de Henauw S; Hirsch-Ernst KI; Knutsen HK; Maciuk A; Mangelsdorf I; McArdle HJ; Peláez C; Pentieva K; Siani A; Thies F; Tsabouri S; Vinceti M; Aggett P; Crous Bou M; Cubadda F; Ciccolallo L; de Sesmaisons Lecarré A; Fabiani L; Titz A; Naska A · EFSA journal. European Food Safety Authority · 2023
    Systematic reviewHair Health forSelenium
  35. Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
    Karatas F; Sahin S; Sever AR; Altundag K · SpringerPlus · 2016
    Narrative reviewHair Health forVitamin C
  36. Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
    Ba Y; Shen L; Peng X; Zhang Y; Wang J · Medicine · 2024
    Methods validation study201,019 participantsHair Health forVitamin C
  37. Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
    Liu CS; Chen HW; Lii CK; Tsai CS; Kuo CL; Wei YH · Environmental and molecular mutagenesis · 2002
    Observational studyHair Health forVitamin C
  38. Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
    Hawkes JA; Lewis DM; Mama J; Murray J · International journal of cosmetic science · 2026
    Methods validation studyHair Health forVitamin C
  39. A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
    Kilic M; Taskesen M; Coskun T; Gürakan F; Tokatli A; Sivri HS; Dursun A; Schmitt S; Küry S · JIMD reports · 2013
    Case reportHair Health forVitamin C
  40. The effects of minoxidil, 1% pyrithione zinc and a combination of both on hair density: a randomized controlled trial.
    Berger RS; Fu JL; Smiles KA; Turner CB; Schnell BM; Werchowski KM; Lammers KM · The British journal of dermatology · 2003
    Randomized trial200 participantsHair Health forZinc
  41. Incubatory environment of the scalp impacts pre-emergent hair to affect post-emergent hair cuticle integrity.
    Schwartz JR; Henry JP; Kerr KM; Flagler MJ; Page SH; Redman-Furey N · Journal of cosmetic dermatology · 2018
    Randomized trialHair Health forZinc
  42. A comparison of hair quality and cosmetic acceptance following the use of two anti-dandruff shampoos.
    Draelos ZD; Kenneally DC; Hodges LT; Billhimer W; Copas M; Margraf C · The journal of investigative dermatology. Symposium proceedings · 2006
    Randomized trial40 participantsHair Health forZinc
  43. BMI and levels of zinc, copper in hair, serum and urine of Turkish male patients with androgenetic alopecia.
    Ozturk P; Kurutas E; Ataseven A; Dokur N; Gumusalan Y; Gorur A; Tamer L; Inaloz S · Journal of trace elements in medicine and biology : organ of the Society for Minerals and Trace Elements (GMS) · 2015
    Case-control study216 participantsHair Health forZinc
  44. Analysis of serum zinc and copper concentrations in hair loss.
    Kil MS; Kim CW; Kim SS · Annals of dermatology · 2013
    Case-control study342 participantsHair Health forZinc
  45. Effects of selenium supplementation on selenoprotein gene expression and response to influenza vaccine challenge: a randomised controlled trial.
    Goldson AJ; Fairweather-Tait SJ; Armah CN; Bao Y; Broadley MR; Dainty JR; Furniss C; Hart DJ; Teucher B; Hurst R · PloS one · 2011
    Randomized trial119 participantsImmunity forSelenium
  46. Effect of selenium on immune response against hepatitis B vaccine with accelerated method in insulin-dependent diabetes mellitus patients.
    Janbakhsh A; Mansouri F; Vaziri S; Sayad B; Afsharian M; Rahimi M; Shahebrahimi K; Salari F · Caspian journal of internal medicine · 2013
    Randomized trial62 participantsImmunity forSelenium
  47. Chemoprevention trial of human hepatitis with selenium supplementation in China.
    Yu SY; Li WG; Zhu YJ; Yu WP; Hou C · Biological trace element research · 1990
    Non-randomized trial20,847 participantsImmunity forSelenium
  48. Selenium nanoparticles as adjunctive therapy in sepsis: A pilot randomized clinical trial.
    Gu WJ; Huang W; Zhao FZ; Yuan XK; Jin K; Chen JL; Zhang CY; Huang Y; He L; Zhuang H; Yin HY; Chen T · Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2026
    Randomized trial70 participantsImmunity forSelenium
  49. Selenium supplementation in patients with autoimmune thyroiditis decreases thyroid peroxidase antibodies concentrations.
    Gärtner R; Gasnier BC; Dietrich JW; Krebs B; Angstwurm MW · The Journal of clinical endocrinology and metabolism · 2002
    Randomized trial70 participantsImmunity forSelenium
  50. Depressed immune response to tetanus in children with vitamin A deficiency.
    Semba RD; Muhilal; Scott AL; Natadisastra G; Wirasasmita S; Mele L; Ridwan E; West KP; Sommer A · The Journal of nutrition · 1992
    Randomized trial236 participantsImmunity forVitamin A
  51. Impact of a single megadose of vitamin A at delivery on breastmilk of mothers and morbidity of their infants.
    Roy SK; Islam A; Molla A; Akramuzzaman SM; Jahan F; Fuchs G · European journal of clinical nutrition · 1997
    Randomized trial50 participantsImmunity forVitamin A
  52. Vitamin A supplementation reduces measles morbidity in young African children: a randomized, placebo-controlled, double-blind trial.
    Coutsoudis A; Broughton M; Coovadia HM · The American journal of clinical nutrition · 1991
    Randomized trial60 participantsImmunity forVitamin A
  53. Vitamin A supplementation enhances specific IgG antibody levels and total lymphocyte numbers while improving morbidity in measles.
    Coutsoudis A; Kiepiela P; Coovadia HM; Broughton M · The Pediatric infectious disease journal · 1992
    Randomized trial60 participantsImmunity forVitamin A
  54. Vitamin A supplementation reduces the monocyte chemoattractant protein-1 intestinal immune response of Mexican children.
    Long KZ; Santos JI; Estrada Garcia T; Haas M; Firestone M; Bhagwat J; Dupont HL; Hertzmark E; Rosado JL; Nanthakumar NN · The Journal of nutrition · 2006
    Randomized trial127 participantsImmunity forVitamin A
  55. Vitamin C and contribution to the normal function of the immune system: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusImmunity forVitamin C
  56. Therapeutic effects of high-dose vitamin C supplementation in patients with COVID-19: a meta-analysis.
    Sun L; Zhao JH; Fan WY; Feng B; Liu WW; Chen RQ; Ban C; Dang AG; Wang M; Luo KT; Zhou GY; Yu FF; Ba Y · Nutrition reviews · 2024
    Meta-analysis2,334 participants14 studies pooledImmunity forVitamin C
  57. Effect of micronutrient supplements on influenza and other respiratory tract infections among adults: a systematic review and meta-analysis.
    Abioye AI; Bromage S; Fawzi W · BMJ global health · 2021
    Meta-analysisImmunity forVitamin C
  58. New evidence for antioxidant properties of vitamin C.
    Vojdani A; Bazargan M; Vojdani E; Wright J · Cancer detection and prevention · 2001
    Randomized trial20 participantsImmunity forVitamin C
  59. Enhanced Vitamin C Delivery: A Systematic Literature Review Assessing the Efficacy and Safety of Alternative Supplement Forms in Healthy Adults.
    Calder PC; Kreider RB; McKay DL · Nutrients · 2025
    Systematic review13 studies pooledImmunity forVitamin C
  60. Vitamin D supplementation to prevent acute respiratory infections: individual participant data meta-analysis.
    Martineau AR; Jolliffe DA; Greenberg L; Aloia JF; Bergman P; Dubnov-Raz G; Esposito S; Ganmaa D; Ginde AA; Goodall EC; Grant CC; Janssens W; Jensen ME; Kerley CP; Laaksi I; Manaseki-Holland S; Mauger D; Murdoch DR; Neale R; Rees JR; Simpson S; Stelmach I; Trilok Kumar G; Urashima M; Camargo CA; Griffiths CJ; Hooper RL · Health technology assessment (Winchester, England) · 2020
    Meta-analysis11,321 participants25 studies pooledImmunity forVitamin D
  61. Association Between Vitamin D and Influenza: Meta-Analysis and Systematic Review of Randomized Controlled Trials.
    Zhu Z; Zhu X; Gu L; Zhan Y; Chen L; Li X · Frontiers in nutrition · 2022
    Meta-analysis4,859 participants10 studies pooledImmunity forVitamin D
  62. Vitamin D3 and deconvoluting a rash.
    Ernst MK; Evans ST; Techner JM; Rothbaum RM; Christensen LF; Onay UV; Biyashev D; Demczuk MM; Nguyen CV; Honda KS; McCormick TS; Tsoi LC; Gudjonsson JE; Cooper KD; Lu KQ · JCI insight · 2023
    Randomized trial28 participantsImmunity forVitamin D
  63. Effect of vitamin D3 supplementation on cellular immunity and inflammatory markers in COVID-19 patients admitted to the ICU.
    Bychinin MV; Klypa TV; Mandel IA; Yusubalieva GM; Baklaushev VP; Kolyshkina NA; Troitsky AV · Scientific reports · 2022
    Randomized trial110 participantsImmunity forVitamin D
  64. Current opinion on the role of vitamin D supplementation in respiratory infections and asthma/COPD exacerbations: A need to establish publication guidelines for overcoming the unpublished data.
    Anitua E; Tierno R; Alkhraisat MH · Clinical nutrition (Edinburgh, Scotland) · 2022
    Meta-analysis50,554 participants65 studies pooledImmunity forVitamin D
  65. Nutrient supplementation for prevention of viral respiratory tract infections in healthy subjects: A systematic review and meta-analysis.
    Vlieg-Boerstra B; de Jong N; Meyer R; Agostoni C; De Cosmi V; Grimshaw K; Milani GP; Muraro A; Oude Elberink H; Pali-Schöll I; Roduit C; Sasaki M; Skypala I; Sokolowska M; van Splunter M; Untersmayr E; Venter C; O'Mahony L; Nwaru BI · Allergy · 2022
    Meta-analysis199,055 participants115 studies pooledImmunity forZinc
  66. Zinc supplementation reduces the incidence of acute lower respiratory infections in infants and preschool children: a double-blind, controlled trial.
    Sazawal S; Black RE; Jalla S; Mazumdar S; Sinha A; Bhan MK · Pediatrics · 1998
    Randomized trial609 participantsImmunity forZinc
  67. A randomized controlled trial of zinc supplementation in the treatment of acute respiratory tract infection in Thai children.
    Rerksuppaphol S; Rerksuppaphol L · Pediatric reports · 2020
    Randomized trial64 participantsImmunity forZinc
  68. The effect of zinc and vitamin A supplementation on immune response in an older population.
    Fortes C; Forastiere F; Agabiti N; Fano V; Pacifici R; Virgili F; Piras G; Guidi L; Bartoloni C; Tricerri A; Zuccaro P; Ebrahim S; Perucci CA · Journal of the American Geriatrics Society · 1998
    Randomized trial136 participantsImmunity forZinc
  69. The role of specific nutrients in preventing immune system and blood cell disorders: an umbrella review.
    Vecchietti A; Strano P; Minutolo G; Grieco V; Cappuccio G; Granvillano G; Confalonieri L; Briganti GL; Raso E; Chimienti M; Pellegrini M; Mercogliano M; Spatari G; Lugli C; Urbano T; Lorenzon A · Journal of preventive medicine and hygiene · 2026
    Systematic review13 studies pooledImmunity forZinc
  70. Evaluation of the anti-wrinkle effect of an ascorbic acid-loaded dissolving microneedle patch via a double-blind, placebo-controlled clinical study.
    Lee C; Yang H; Kim S; Kim M; Kang H; Kim N; An S; Koh J; Jung H · International journal of cosmetic science · 2017
    Randomized trial23 participantsSkin Health forVitamin C
  71. Comparative Study on the Outcome of Periorbital Wrinkles Treated with Laser-Assisted Delivery of Vitamin C or Vitamin C Plus Growth Factors: A Randomized, Double-blind, Clinical Trial.
    Machado BHB; Frame J; Zhang J; Najlah M · Aesthetic plastic surgery · 2021
    Randomized trial149 participantsSkin Health forVitamin C
  72. Randomized trial of topical ascorbic acid in DMSO versus imiquimod for the treatment of basal cell carcinoma.
    Burke B; Bailie JE · Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2022
    Randomized trial25 participantsSkin Health forVitamin C
  73. Vitamin C improves healing of foot ulcers: a randomised, double-blind, placebo-controlled trial.
    Gunton JE; Girgis CM; Lau T; Vicaretti M; Begg L; Flood V · The British journal of nutrition · 2022
    Randomized trial16 participantsSkin Health forVitamin C
  74. Dietary nutrient intakes and skin-aging appearance among middle-aged American women.
    Cosgrove MC; Franco OH; Granger SP; Murray PG; Mayes AE · The American journal of clinical nutrition · 2007
    Cross-sectional study4,025 participantsSkin Health forVitamin C
  75. Sex-related differences in response to zinc pyrithione shampoo vs. non-anti-dandruff shampoo.
    Collins LZ; Baines FL; Matheson JR; Turner GA; Diao Y; Li Y; Pi Y · International journal of cosmetic science · 2019
    Meta-analysis2,088 participants20 studies pooledSkin Health forZinc
  76. Maintenance of an Acidic Skin Surface with a Novel Zinc Lactobionate Emollient Preparation Improves Skin Barrier Function in Patients with Atopic Dermatitis.
    Andrew PV; Pinnock A; Poyner A; Brown K; Chittock J; Kay LJ; Cork MJ; Danby SG · Dermatology and therapy · 2024
    Cohort study23 participantsSkin Health forZinc
  77. Spatial expression of metallothionein, matrix metalloproteinase-1 and Ki-67 in human epidermal wounds treated with zinc and determined by quantitative immunohistochemistry: A randomised double-blind trial.
    Ågren MS; Chafranska L; Eriksen JO; Forman JL; Bjerrum MJ; Schjerling P; Larsen HF; Cottarelli E; Jorgensen LN; Gjerdrum LMR · European journal of cell biology · 2021
    Randomized trial30 participantsSkin Health forZinc
  78. A pilot trial using topical regular crystalline insulin vs. aqueous zinc solution for uncomplicated cutaneous wound healing: Impact on quality of life.
    Attia EA; Belal DM; El Samahy MH; El Hamamsy MH · Wound repair and regeneration : official publication of the Wound Healing Society [and] the European Tissue Repair Society · 2014
    Randomized trial90 participantsSkin Health forZinc
  79. Evidence-Based Nutritional Interventions in Wound Care.
    Saeg F; Orazi R; Bowers GM; Janis JE · Plastic and reconstructive surgery · 2021
    Systematic review2,339 participants36 studies pooledSkin Health forZinc