Product Image

Energy

Bayer One A Day
4.7
★ ★ ★ ★ ★
(125 ratings)
Iodine 150 mcg
Calcium 250 mg
Biotin 300 mcg
Niacin 40 mg
Copper 2 mg
Manganese 2 mg
Iron 9 mg
Product Image
Score77
A low-cost caffeinated multivitamin with predictable short-term energy, but unspecified forms and modest mineral support limit overall quality.
How scoring works
Quantity:50 Tablet(s) • (50 servings)
Goals:
Energy
Mental Focus
Hair Health
Bone Health

Score 77

A low-cost caffeinated multivitamin with predictable short-term energy, but unspecified forms and modest mineral support limit overall quality.
How scoring works
$10.90($0.21 per serving)
iHerb
$ 10.90
Vitacost
$ 14.29
Report prices

Analysis

Caffeine at 90 mg is the clearest active and should provide noticeable alertness for many users. B vitamins, iron, iodine, and other micronutrients offer basic nutritional support at a low daily cost.

Most nutrient forms are not stated, limiting assessment of absorption and tolerance. Calcium is moderate, magnesium is low, and the formula lacks deeper cognitive or metabolic ingredients beyond caffeine.

It suits caffeine-tolerant adults who want a simple one-tablet morning multi with a coffee-like stimulant dose. People who want stimulant-free nutrition or stronger bone coverage should choose a different product.

Who is it for
  • Caffeine-tolerant adults seeking morning energy
  • Users wanting a multivitamin and stimulant in one tablet
  • People comfortable with 90 mg caffeine
Best for
  • Short-term alertness
  • Basic vitamin coverage
  • Morning convenience

Pros

  • Clearly discloses 90 mg caffeine
  • One-tablet serving
  • Low cost per serving
  • Provides broad basic micronutrients

Cons

  • Most nutrient forms are unspecified
  • Energy effect relies mainly on caffeine
  • Magnesium is low
  • Not a strong bone-support formula

Warnings

  • The 90 mg caffeine dose may cause jitteriness, anxiety, faster heartbeat, or sleep disruption
  • Avoid combining with other high-caffeine products without tracking total intake
  • Iron may be unnecessary for some users and can cause nausea or constipation

Nutrient quality

68 High impact

Beta-carotene is identified, but almost every other vitamin and mineral form is undisclosed. Caffeine and B vitamins provide a meaningful energy signal, while magnesium is modest.

Ingredient transparency

79 High impact

Every listed active has a specific amount. No proprietary blend hides a key dose.

Customer satisfaction

70 High impact

The supplied average rating is very strong. The evidence base is more limited, and no specific experience or complaint themes were provided.

Value for money

92 Highest impact

A useful caffeine amount and broad basic nutrients provide strong value at the very low serving cost. The formula compares favorably with similar products on quality and cost.

Report analysis

Goals

Energy
Energy
Impact
Highest effect
A+ Goal FitB- Strength of SupportB+ CoverageA- Formula Quality
Iodine · 150 mcgVitamin D · 10 mcgVitamin B5 · 10 mgMagnesium · 40 mgRiboflavin · 3.4 mgThiamin · 3 mgVitamin B12 · 12 mcgIron · 9 mgCaffeine · 90 mg

Caffeine provides immediate alertness, while B vitamins, iron, iodine, and other nutrients support underlying energy metabolism. The 90 mg caffeine amount is clearly disclosed and offers a moderate stimulant effect.

The formula covers both acute and nutritional pathways, though iron form and many vitamin forms are not identified. Caffeine may cause jitters or disturb sleep, especially when taken later in the day or combined with other caffeine sources.

Study evidence
Caffeine Supportive 68 studies
Iodine Adverse 3 studies
Iron Supportive 74 studies
Mental Focus
Mental Focus
Impact
High effect
B Goal FitB- Strength of SupportD+ CoverageD Formula Quality
Folate · 665 mcg DFEVitamin B6 · 4 mgVitamin D · 10 mcgVitamin B12 · 12 mcgMagnesium · 40 mgCaffeine · 90 mg

The mild caffeine amount can support alertness without the intensity of many dedicated stimulants. B vitamins and iron provide foundational energy support, but they are unlikely to sharpen focus unless intake is low.

The caffeine source is not identified and no calming partner is included. The broad multivitamin design adds many nutrients that do not materially improve acute concentration.

Study evidence
Caffeine Supportive 128 studies
Iron Adverse 33 studies
Hair Health
Hair Health
Impact
Moderate effect
B- Goal FitC- Strength of SupportC+ CoverageC- Formula Quality
Biotin · 300 mcgVitamin D · 10 mcgZinc · 15 mgIron · 9 mgVitamin C · 60 mg

Zinc, iron, vitamin D, folate, B12, biotin, and selenium provide broad nutritional support for follicles and shedding. The amounts are generally practical, although iron and vitamin D are more modest than in targeted formulas.

Caffeine does not add a direct hair benefit and shifts the formula toward short-term energy. The 90 mg caffeine amount may disturb sleep or cause jitters in sensitive users, especially when taken later in the day.

Study evidence
Biotin Supportive 4 studies
Folate Mixed 15 studies
Iron Disputed 25 studies
Selenium Disputed 7 studies
Vitamin D Disputed 34 studies
Zinc Supportive 22 studies
Bone Health
Healthy Bone RemodelingBone Mineral Preservation
Bone Health
Impact
Moderate effect
C+ Goal FitD Strength of SupportC+ CoverageD+ Formula Quality
Vitamin K · 25 mcgMagnesium · 40 mgCalcium · 250 mgVitamin D · 10 mcgCopper · 2 mgManganese · 2 mgZinc · 15 mgVitamin C · 60 mg

Calcium, vitamin D, vitamin K, and trace minerals offer moderate bone-health support. Low magnesium and an energy-focused caffeine addition keep the formula from being a strong skeletal option.

The calcium amount can complement diet, while mineral and vitamin K forms are not disclosed. Caffeine may disrupt sleep or cause jitters in sensitive users and contributes nothing to bone support.

Study evidence
Calcium Supportive 144 studies
Magnesium Supportive 48 studies
Vitamin D Supportive 202 studies
Vitamin K Supportive 78 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
 1050 mcg
Vitamin C
60 mg
Vitamin D
10 mcg
Vitamin E
10.1 mg
Vitamin K
25 mcg
Thiamine (Vitamin B1)
 3 mg
Riboflavin (Vitamin B2)
 3.4 mg
Niacin
40 mg
Vitamin B6
4 mg
Folate
665 mcg DFE
Vitamin B12
12 mcg
Biotin
300 mcg
Pantothenic Acid
10 mg
Calcium
250 mg
Iron
9 mg
Iodine
150 mcg
Magnesium
40 mg
Zinc
15 mg
Selenium
45 mcg
Copper
2 mg
Manganese
2 mg
Chromium
100 mcg
Molybdenum
25 mcg
Caffeine
90 mg
Adults 18–50
Report overview
Iodine · 150 mcg OverallScore75
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 150 mcg iodine serving aligns with daily thyroid maintenance needs. The iodine compound or source is not identified, limiting confidence in stability and absorption. Its serving cost is well below the collection median.

View ingredientView products
Calcium · 250 mg OverallScore59
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

A moderate calcium amount is clearly quantified in the energy-focused multivitamin, but its chemical form is not disclosed. The dose can supplement daily intake, although unknown form and elemental context limit absorption confidence. The low serving cost provides strong general multivitamin value.

View ingredientView products
Biotin · 300 mcg OverallScore56
B- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyC Value

An energy multivitamin combines Biotin with B vitamins and a moderate caffeine amount. The clearly disclosed 300 mcg amount is nutritional rather than a high-potency hair or nail dose. Caffeine-sensitive users should account for the 90 mg caffeine serving.

View ingredientView products
Loading alternative details
84 Performance

One Daily Women's

21st Century
<p>Practical vitamins and minerals, including iron and calcium, create a balanced daily base without the original’s caffeine. Iron is unnecessary for users without increased needs, but the absence of an added stimulant improves flexibility and sleep compatibility.</p>
82 Performance

Active Metabolism

Bayer One A Day Women's
<p>Broad vitamins, iron, and moderate caffeine keep the energy focus while adding clearer metabolism support than the original. Magnesium and selenium are modest, and combining its caffeine with other stimulants may still cause jitteriness or sleep disruption.</p>
86 Performance

Full Spectrum Mineral Caps

NOW
<p>Chelated minerals, calcium, magnesium, and vitamin D3 provide stronger mineral-form detail than the original’s mostly unspecified forms. It lacks caffeine and broad vitamin coverage, so it suits nutritional mineral support rather than immediate alertness.</p>
82 Budget

One Daily Women's

Equate
<p>Practical vitamins and minerals, including iron and calcium, preserve daily coverage at a lower serving cost without added caffeine. Most forms are not disclosed, but avoiding a stimulant makes it easier to use later in the day than the original.</p>
81 Budget

Women's Daily Multi Formula

Mason Natural
<p>Broad vitamins, iron, calcium, vitamin D3, and zinc provide useful daily coverage at a lower serving cost. Basic mineral forms and calcium competing with iron are trade-offs, but the formula avoids caffeine-related sleep or sensitivity concerns.</p>
82 Budget

Daily Vits

NOW
<p>Core vitamins, iron, calcium, and zinc provide broad coverage at a lower serving cost without relying on caffeine for perceived energy. Repeated niacin and pantothenic acid entries make totals uncertain, while several carotenoids and potassium are only token additions.</p>
83 Value

Women's Complete Multivitamin

Bayer One A Day Women's
<p>Broad essential nutrients and iron preserve practical daily coverage at a very low serving cost. Calcium and magnesium are modest and most forms are unspecified, but the caffeine-free formula offers steadier everyday value than the original.</p>
83 Value

M.V. Teen

Futurebiotics
<p>Practical vitamins plus iron, zinc, iodine, and manganese provide broad nutrient coverage without caffeine at a favorable serving cost. Calcium and magnesium are modest, but the restrained doses improve day-to-day usability for stimulant-sensitive users.</p>
76 Value

Multi For Her

Nature Made
<p>Broad vitamins, iron, and trace minerals provide a caffeine-free daily base with accessible value. Basic forms, high folate, and missing serving details weaken confidence, but it avoids the original’s stimulant trade-off.</p>
Report alternatives

Sources

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

  1. 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
  2. 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
  3. 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
  4. 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
  5. What is the impact of daily oral supplementation of vitamin D3 (cholecalciferol) plus calcium on the incidence of hip fracture in older people? A systematic review and meta-analysis.
    Manoj P; Derwin R; George S · International journal of older people nursing · 2023
    Meta-analysis12,620 participants7 studies pooledBone Health forCalcium
  6. Calcium supplementation prevents seasonal bone loss and changes in biochemical markers of bone turnover in elderly New England women: a randomized placebo-controlled trial.
    Storm D; Eslin R; Porter ES; Musgrave K; Vereault D; Patton C; Kessenich C; Mohan S; Chen T; Holick MF; Rosen CJ · The Journal of clinical endocrinology and metabolism · 1998
    Randomized trial60 participantsBone Health forCalcium
  7. The effects of calcium supplementation (milk powder or tablets) and exercise on bone density in postmenopausal women.
    Prince R; Devine A; Dick I; Criddle A; Kerr D; Kent N; Price R; Randell A · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 1995
    Randomized trial168 participantsBone Health forCalcium
  8. The efficacy of calcium supplementation alone in elderly Thai women over a 2-year period: a randomized controlled trial.
    Rajatanavin R; Chailurkit L; Saetung S; Thakkinstian A; Nimitphong H · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial404 participantsBone Health forCalcium
  9. Calcium-enriched foods and bone mass growth in prepubertal girls: a randomized, double-blind, placebo-controlled trial.
    Bonjour JP; Carrie AL; Ferrari S; Clavien H; Slosman D; Theintz G; Rizzoli R · The Journal of clinical investigation · 1997
    Randomized trial149 participantsBone Health forCalcium
  10. Association between Serum Magnesium and Fractures: A Systematic Review and Meta-Analysis of Observational Studies.
    Dominguez LJ; Veronese N; Ciriminna S; Pérez-Albela JL; Vásquez-López VF; Rodas-Regalado S; Di Bella G; Parisi A; Tagliaferri F; Barbagallo M · Nutrients · 2023
    Meta-analysis119,755 participants4 studies pooledBone Health forMagnesium
  11. Bioabsorbable Magnesium-Based Materials Potential and Safety in Bone Surgery: A Systematic Review.
    Hung CH; Kwok YC; Yip J; Wong HH; Leung YY · Craniomaxillofacial trauma & reconstruction · 2025
    Systematic review386 participants8 studies pooledBone Health forMagnesium
  12. Vascularized bone grafting fixed by biodegradable magnesium screw for treating osteonecrosis of the femoral head.
    Zhao D; Huang S; Lu F; Wang B; Yang L; Qin L; Yang K; Li Y; Li W; Wang W; Tian S; Zhang X; Gao W; Wang Z; Zhang Y; Xie X; Wang J; Li J · Biomaterials · 2016
    Randomized trial48 participantsBone Health forMagnesium
  13. An update on magnesium and bone health.
    Rondanelli M; Faliva MA; Tartara A; Gasparri C; Perna S; Infantino V; Riva A; Petrangolini G; Peroni G · Biometals : an international journal on the role of metal ions in biology, biochemistry, and medicine · 2022
    Narrative reviewBone Health forMagnesium
  14. Sex-specific differences in the association of magnesium intake with femoral neck bone mineral density among older adults.
    Wang B; Tan X; Yao X; Zhu Z · Endocrine connections · 2025
    Cross-sectional study1,343 participantsBone Health forMagnesium
  15. Pregnancy vitamin D supplementation and offspring bone mineral density in childhood follow-up of a randomized controlled trial.
    Moon RJ; D' Angelo S; Curtis EM; Ward KA; Crozier SR; Schoenmakers I; Javaid MK; Bishop NJ; Godfrey KM; Cooper C; Harvey NC; MAVIDOS Trial Group · The American journal of clinical nutrition · 2024
    Randomized trial454 participantsBone Health forVitamin D
  16. Vitamin D analogs and bone: preclinical and clinical studies with eldecalcitol.
    Matsumoto T; Takano T; Saito H; Takahashi F · BoneKEy reports · 2014
    Narrative reviewBone Health forVitamin D
  17. Efficacy of vitamin D fortified foods on bone mineral density and serum bone biomarkers: A systematic review and meta-analysis of interventional studies.
    Tangestani H; Djafarian K; Emamat H; Arabzadegan N; Shab-Bidar S · Critical reviews in food science and nutrition · 2020
    Meta-analysis1,786 participants20 studies pooledBone Health forVitamin D
  18. Cholecalciferol Supplementation Attenuates Bone Loss in Incident Kidney Transplant Recipients: A Prespecified Secondary Endpoint Analysis of a Randomized Controlled Trial.
    Tsujita M; Doi Y; Obi Y; Hamano T; Tomosugi T; Futamura K; Okada M; Hiramitsu T; Goto N; Isaka Y; Takeda A; Narumi S; Watarai Y · Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2022
    Randomized trial193 participantsBone Health forVitamin D
  19. Vitamin D supplementation and bone health in post-menopausal women: a 24-month randomized controlled intervention with enhanced bioavailability formulations.
    Rasool N; Munir Y · European journal of clinical nutrition · 2026
    Randomized trial612 participantsBone Health forVitamin D
  20. Vitamin K and the prevention of fractures: systematic review and meta-analysis of randomized controlled trials.
    Cockayne S; Adamson J; Lanham-New S; Shearer MJ; Gilbody S; Torgerson DJ · Archives of internal medicine · 2006
    Meta-analysis13 studies pooledBone Health forVitamin K
  21. Three-year low-dose menaquinone-7 supplementation helps decrease bone loss in healthy postmenopausal women.
    Knapen MH; Drummen NE; Smit E; Vermeer C; Theuwissen E · Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2014
    Randomized trial244 participantsBone Health forVitamin K
  22. Effect of combined administration of vitamin D3 and vitamin K2 on bone mineral density of the lumbar spine in postmenopausal women with osteoporosis.
    Iwamoto J; Takeda T; Ichimura S · Journal of orthopaedic science : official journal of the Japanese Orthopaedic Association · 2001
    Randomized trial92 participantsBone Health forVitamin K
  23. Efficacy and safety of vitamin K2 for postmenopausal women with osteoporosis at a long-term follow-up: meta-analysis and systematic review.
    Zhou M; Han S; Zhang W; Wu D · Journal of bone and mineral metabolism · 2022
    Meta-analysis6,853 participants9 studies pooledBone Health forVitamin K
  24. Low-dose vitamin K2 (MK-4) supplementation for 12 months improves bone metabolism and prevents forearm bone loss in postmenopausal Japanese women.
    Koitaya N; Sekiguchi M; Tousen Y; Nishide Y; Morita A; Yamauchi J; Gando Y; Miyachi M; Aoki M; Komatsu M; Watanabe F; Morishita K; Ishimi Y · Journal of bone and mineral metabolism · 2015
    Randomized trial48 participantsBone Health forVitamin K
  25. Cognitive and mood improvements of caffeine in habitual consumers and habitual non-consumers of caffeine.
    Haskell CF; Kennedy DO; Wesnes KA; Scholey AB · Psychopharmacology · 2005
    Randomized trial48 participantsEnergy forCaffeine
  26. Caffeine-containing energy drink improves physical performance of elite rugby players during a simulated match.
    Del Coso J; Ramírez JA; Muñoz G; Portillo J; Gonzalez-Millán C; Muñoz V; Barbero-Álvarez JC; Muñoz-Guerra J · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2016
    Randomized trial26 participantsEnergy forCaffeine
  27. Differential cognitive effects of energy drink ingredients: caffeine, taurine, and glucose.
    Giles GE; Mahoney CR; Brunyé TT; Gardony AL; Taylor HA; Kanarek RB · Pharmacology, biochemistry, and behavior · 2013
    Randomized trial48 participantsEnergy forCaffeine
  28. Does Single or Combined Caffeine and Taurine Supplementation Improve Athletic and Cognitive Performance without Affecting Fatigue Level in Elite Boxers? A Double-Blind, Placebo-Controlled Study.
    Ozan M; Buzdagli Y; Eyipinar CD; Baygutalp NK; Yüce N; Oget F; Kan E; Baygutalp F · Nutrients · 2022
    Randomized trial20 participantsEnergy forCaffeine
  29. Trait Energy and Fatigue Modify the Effects of Caffeine on Mood, Cognitive and Fine-Motor Task Performance: A Post-Hoc Study.
    Fuller DT; Smith ML; Boolani A · Nutrients · 2021
    Randomized trialEnergy forCaffeine
  30. Association of radioactive iodine treatment with survivorship symptoms and primary care utilisation in women of reproductive age with thyroid cancer: a retrospective cohort study.
    Devanarayan P; Hartman M; Partin M · Family medicine and community health · 2026
    Cohort study10,882 participantsEnergy forIodine
  31. Energy level and fatigue after surgery for thyroid cancer: A population-based study of patient-reported outcomes.
    Hughes DT; Reyes-Gastelum D; Kovatch KJ; Hamilton AS; Ward KC; Haymart MR · Surgery · 2020
    Cohort study2,584 participantsEnergy forIodine
  32. Health-Related Quality of Life in Differentiated Thyroid Cancer Survivors: A Cross-Sectional Study From Turkey.
    Gültekin A; Kahraman MY; Şengöz T; Şimşek FS · Head & neck · 2026
    Cross-sectional study202 participantsEnergy forIodine
  33. Large-dose intravenous ferric carboxymaltose injection for iron deficiency anemia in heavy uterine bleeding: a randomized, controlled trial.
    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  34. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
    Randomized trial176 participantsEnergy forIron
  35. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  36. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  37. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  38. Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
    Zhang W; Fan M; Wang C; Mahawar K; Parmar C; Chen W; Yang W; Global Bariatric Research Collaborative · Obesity surgery · 2021
    Meta-analysis2,538 participants18 studies pooledHair Health forFolate
  39. Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
    Al-Fawaeir S; Al-Odat I · Diseases (Basel, Switzerland) · 2025
    Case-control study200 participantsHair Health forFolate
  40. Twelve weeks of protracted venous infusion of fluorouracil (5-FU) is as effective as 6 months of bolus 5-FU and folinic acid as adjuvant treatment in colorectal cancer.
    Saini A; Norman AR; Cunningham D; Chau I; Hill M; Tait D; Hickish T; Iveson T; Lofts F; Jodrell D; Ross PJ; Oates J · British journal of cancer · 2003
    Randomized trialHair Health forFolate
  41. Role of oxaliplatin combined with 5-fluorouracil and folinic acid in the first- and second-line treatment of advanced colorectal cancer.
    Jonker D; Rumble RB; Maroun J; Gastrointestinal Cancer Disease Site Groupof Cancer Care Ontario’s Program in Evidence-Based Care · Current oncology (Toronto, Ont.) · 2012
    Randomized trialHair Health forFolate
  42. Phase I-II study of vinorelbine in combination with 5-fluorouracil and folinic acid as first-line chemotherapy in metastatic breast cancer: a regimen with a low subjective toxic burden.
    Nolè F; de Braud F; Aapro M; Minchella I; De Pas TM; Zampino MG; Monti S; Andreoni G; Goldhirsch A · Annals of oncology : official journal of the European Society for Medical Oncology · 1997
    Randomized trialHair Health forFolate
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. Increased prevalence of vitamin D deficiency in patients with alopecia areata: a systematic review and meta-analysis.
    Lee S; Kim BJ; Lee CH; Lee WS · Journal of the European Academy of Dermatology and Venereology : JEADV · 2018
    Meta-analysis2,039 participants14 studies pooledHair Health forVitamin D
  54. Intralesional vitamin D3 in treatment of alopecia areata: A randomized controlled clinical trial.
    Rashad AF; Elgamal E; Fouda I · Journal of cosmetic dermatology · 2022
    Randomized trial60 participantsHair Health forVitamin D
  55. Vitamin D and its Analogs in Treatment of Mild to Moderate Alopecia Areata: Systematic Review and Meta-Analysis.
    Alsaati AA; Kaliyadan F; Alsaadoun D; Alzakry LM; Alzabadin RA; Hakami TH; Rubaian NFB · Indian dermatology online journal · 2025
    Meta-analysisHair Health forVitamin D
  56. Topical calcipotriol vs narrowband ultraviolet B in treatment of alopecia areata: a randomized-controlled trial.
    El Taieb MA; Hegazy EM; Ibrahim HM; Osman AB; Abualhamd M · Archives of dermatological research · 2020
    Randomized trial60 participantsHair Health forVitamin D
  57. Serum 25 hydroxyvitamin D in non-scarring alopecia: A systematic review and meta-analysis.
    Chen Y; Dong X; Wang Y; Li Y; Xiong L; Li L · Journal of cosmetic dermatology · 2024
    Meta-analysis10,670 participants23 studies pooledHair Health forVitamin D
  58. 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
  59. 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
  60. 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
  61. 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
  62. 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
  63. Effects of modafinil and caffeine on night-time vigilance of air force crewmembers: A randomized controlled trial.
    Wingelaar-Jagt YQ; Bottenheft C; Riedel WJ; Ramaekers JG · Journal of psychopharmacology (Oxford, England) · 2023
    Randomized trial32 participantsMental Focus forCaffeine
  64. Acute effects of caffeine on attention: a comparison of non-consumers and withdrawn consumers.
    Smith AP; Christopher G; Sutherland D · Journal of psychopharmacology (Oxford, England) · 2013
    Randomized trial70 participantsMental Focus forCaffeine
  65. Performance and alertness effects of caffeine, dextroamphetamine, and modafinil during sleep deprivation.
    Wesensten NJ; Killgore WD; Balkin TJ · Journal of sleep research · 2006
    Randomized trial48 participantsMental Focus forCaffeine
  66. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  67. Effects of caffeine or diphenhydramine on visual vigilance.
    Fine BJ; Kobrick JL; Lieberman HR; Marlowe B; Riley RH; Tharion WJ · Psychopharmacology · 1995
    Randomized trial24 participantsMental Focus forCaffeine
  68. The Effect of Iron-Fortified Lentils on Blood and Cognitive Status among Adolescent Girls in Bangladesh.
    Barnett AL; Wenger MJ; Yunus FM; Jalal C; DellaValle DM · Nutrients · 2023
    Randomized trial359 participantsMental Focus forIron
  69. Cognitive Performance in Indian School-Going Adolescents Is Positively Affected by Consumption of Iron-Biofortified Pearl Millet: A 6-Month Randomized Controlled Efficacy Trial.
    Scott SP; Murray-Kolb LE; Wenger MJ; Udipi SA; Ghugre PS; Boy E; Haas JD · The Journal of nutrition · 2019
    Randomized trial140 participantsMental Focus forIron
  70. Effects of iron supplementation twice a week on attention score and haematologic measures in female high school students.
    Rezaeian A; Ghayour-Mobarhan M; Mazloum SR; Yavari M; Jafari SA · Singapore medical journal · 2015
    Randomized trial200 participantsMental Focus forIron
  71. Randomised study of cognitive effects of iron supplementation in non-anaemic iron-deficient adolescent girls.
    Bruner AB; Joffe A; Duggan AK; Casella JF; Brandt J · Lancet (London, England) · 1996
    Randomized trial81 participantsMental Focus forIron
  72. Effect of iron supplementation on cognition in Greek preschoolers.
    Metallinos-Katsaras E; Valassi-Adam E; Dewey KG; Lönnerdal B; Stamoulakatou A; Pollitt E · European journal of clinical nutrition · 2005
    Randomized trial49 participantsMental Focus forIron