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Marine Collagen 2500 mg

youtheory
4.6
★ ★ ★ ★ ★
(5024 ratings)
Collagen 2500 mg
Silicon 3 mg
Product Image
Score83
A well-aligned, affordable marine collagen formula with useful vitamin C and antioxidants, tempered by five tablets and basic mineral forms.
How scoring works
Quantity:160 Tablet(s) • (32 servings)
Goals:
Skin Health
Nail Health
Hair Health
Anti-Aging

Score 83

A well-aligned, affordable marine collagen formula with useful vitamin C and antioxidants, tempered by five tablets and basic mineral forms.
How scoring works
$13.59($0.42 per serving)
iHerb
$ 13.59
Walmart
$ 13.59
Pure Formulas
$ 17.84
Vitacost
$ 13.79
Report prices

Analysis

Hydrolyzed fish collagen at 2,500 mg provides the core structural-protein ingredient, supported by vitamin C for collagen formation. Natural vitamin E, zinc, selenium, beta-carotene, and silica broaden skin, hair, and nail nutrient coverage.

The collagen amount is practical but lower than many powder servings, while silica is only 3 mg. Zinc oxide and sodium selenite are basic forms, and the product requires five tablets.

It fits adults who prefer tablets and want a low-cost marine collagen formula with supporting antioxidants. Users with fish allergy need a non-marine alternative.

Who is it for
  • Adults seeking marine collagen for skin and nails
  • Users who prefer tablets over powder
  • People wanting collagen with supporting vitamins
Best for
  • Skin support
  • Nail support
  • Marine collagen intake

Pros

  • Provides 2,500 mg hydrolyzed fish collagen
  • Includes vitamin C
  • Adds natural vitamin E, zinc, and selenium
  • Low serving cost

Cons

  • Five tablets per serving
  • Lower collagen dose than many powders
  • Silica amount is modest
  • Zinc and selenium use basic forms

Warnings

  • Fish-derived collagen is unsuitable for people with fish allergy
  • Beta-carotene supplements may be unsuitable for current or former smokers
  • Five tablets may be difficult for users who have trouble swallowing pills

Nutrient quality

84 Highest impact

Hydrolyzed fish collagen and supportive vitamins and minerals fit beauty-related goals well. The collagen amount is moderate and the silica addition is small, limiting the formula's depth.

Ingredient transparency

82 Highest impact

Every listed active has a specific amount and no proprietary blend conceals the formula. Daily-use directions and inactive tablet ingredients are not included in the supplied facts.

Customer satisfaction

72 High impact

The aggregate rating is strong and supported by a meaningful review count. No specific review comments were supplied, so repeated complaints and purpose-related experiences cannot be verified.

Value for money

91 Highest impact

The practical serving cost and coherent ingredient mix provide strong value. A moderate collagen dose keeps it below more concentrated options but does not erase the affordability advantage.

Report analysis

Goals

Skin Health
Skin Health
Impact
Highest effect
A Goal FitB+ Strength of SupportA- CoverageB+ Formula Quality
Zinc · 9 mgVitamin C · 60 mgCollagen · 2500 mgSelenium · 42 mcgSilicon · 3 mgVitamin E · 12 mg

Fish-sourced hydrolyzed collagen supplies a relevant structural dose, while vitamin C supports normal collagen synthesis. Vitamins A and E add antioxidant support, although the silica contribution is too small for much structural impact.

The formula covers skin structure and oxidative defense with good logic. Collagen type and amino acid details are missing, and several general vitamins add more breadth than depth.

Study evidence
Collagen Supportive 62 studies
Silicon Supportive 16 studies
Vitamin C Supportive 53 studies
Nail Health
Nail Health
Impact
Highest effect
A- Goal FitB- Strength of SupportB+ CoverageA- Formula Quality
Silicon · 3 mgCollagen · 2500 mg

Fish-sourced hydrolyzed collagen directly supports nail structure, while vitamin C, zinc, B vitamins, and silica broaden the formula. The 2.5 g collagen amount reaches a low supportive range, but the silica amount is too small for strong silicon support.

The fish source and hydrolysis are disclosed, while collagen types and amino acid details are absent. People with fish allergy should avoid the marine collagen because it may trigger an allergic reaction.

Study evidence
Collagen Supportive 4 studies
Silicon Supportive 2 studies
Vitamin C Supportive 1 study
Zinc No effect 1 study
Hair Health
Hair Health
Impact
High effect
B- Goal FitB Strength of SupportC+ CoverageB Formula Quality
Zinc · 9 mgVitamin C · 60 mgCollagen · 2500 mg

Hydrolyzed collagen supplies amino acids that may support hair fiber and the scalp dermis. Evidence for direct hair growth is less established than evidence for skin structure.

Marine collagen and vitamin C form a useful structural base. Zinc oxide and a token silica amount weaken the otherwise broad hair-focused blend.

Study evidence
Collagen Supportive 3 studies
Silicon Supportive 2 studies
Vitamin C Mixed 5 studies
Zinc Supportive 22 studies
Anti-Aging
Anti-Aging
Impact
High effect
B Goal FitB- Strength of SupportC+ CoverageB- Formula Quality
Vitamin B12 · 3.6 mcgCollagen · 2500 mg

Fish-sourced hydrolyzed collagen supports skin and connective-tissue structure at the lower useful range. Human evidence is most relevant to skin, connective tissue, and joint function rather than cellular aging.

The marine source is disclosed, but collagen type and amino acid composition are missing. Fish-derived collagen makes the formula unsuitable for people with fish allergy.

Study evidence
Collagen Supportive 33 studies
Vitamin C Supportive 30 studies
Zinc Supportive 10 studies

Ingredients

IngredientAmount per serving
Vitamin A (Beta-Carotene)
 900 mcg
Vitamin C (Calcium Ascorbate)
 60 mg
Vitamin E (D-Alpha-Tocopheryl Acetate)
 12 mg
Vitamin B6 (Pyridoxine Hydrochloride)
 1.2 mg
Vitamin B12 (Cyanocobalamin)
 3.6 mcg
Zinc (Zinc Oxide)
 9 mg
Selenium (Sodium Selenite)
 42 mcg
Collagen, Hydrolyzed (Fish)
 2500 mg
Silica (Horsetail extract)
 3 mg
Adults 18–50 Women
Report overview
Collagen (Fish) · 2500 mg OverallScore60
C+ Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyA+ Value

Fish-sourced hydrolyzed collagen clearly identifies its animal origin and provides an absorption-friendly form. The two-and-a-half-gram amount reaches the lower range used for skin support, though collagen type, protein matching, and amino acid data are not supplied. Its low cost per gram gives it strong value for the stated dose.

View ingredientView products
Silicon (Horsetail extract) · 3 mg OverallScore44
D- Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyC- Value

Horsetail extract supplies silica, but the label gives no standardization details and the source is not a clinically backed trademarked form. The listed silica provides only about 1.4 mg of elemental silicon, which is low for targeted structural support. The low serving cost partly offsets these limits, though the unclear yield makes the practical value modest.

View ingredientView products
Loading alternative details
80 Performance

Living Silica Mineral Based Collagen Booster

Orgono
<p>Its label clearly provides 22.50 mg of Silicon as Monomethylsilanetriol, making it a more clearly defined silicon option. Compared with the original, its ingredient and goal alignment is stronger, although it does not retain the original product’s collagen coverage.</p>
85 Performance

Beauty - Bones - Joints

BioSil
<p>Its label clearly provides 100 mg of Choline as ch-OSA, making it a more clearly defined silicon option. Compared with the original, its ingredient and goal alignment is stronger, although it does not retain the original product’s collagen coverage.</p>
87 Performance

Collagen + C 2500 mg

Spring Valley
<p>Its label clearly provides 2 g of Protein, making it a more clearly defined collagen option. Compared with the original, its ingredient and goal alignment is stronger, although it does not retain the original product’s silicon coverage.</p>
79 Budget

Collagen 3000 mg Amino Acid Complex

Bronson
<p>Its label clearly provides 3 g of Protein, preserving relevant collagen coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s silicon coverage.</p>
71 Budget

Oceanic Silica

Solgar
<p>Its label clearly provides 200 mg of Calcium, preserving relevant silicon coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s collagen coverage.</p>
80 Budget

Gelatin & Silicon

Swanson Premium Brand
<p>Its label clearly provides 1.08 g of Gelatin, preserving relevant silicon coverage. Compared with the original, it lowers the serving cost, although it does not retain the original product’s collagen coverage.</p>
85 Value

Collagen Skin Renewal

Natrol
<p>Its label clearly provides 90 mg of Vitamin C as Ascorbic Acid, keeping the formula relevant to collagen. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s silicon coverage.</p>
85 Value

Collagen 6000 mg

youtheory
<p>Its label clearly provides 90 mg of Vitamin C as Calcium Ascorbate, keeping the formula relevant to collagen. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s silicon coverage.</p>
82 Value

Hair - Skin - Nails

BioSil
<p>Its label clearly provides 100 mg of Choline as ch-OSA, keeping the formula relevant to silicon. Compared with the original, the somewhat higher serving cost and ingredient detail create a useful quality-to-cost balance, although it does not retain the original product’s collagen coverage.</p>
Report alternatives

Sources

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

  1. Exploring the Impact of Hydrolyzed Collagen Oral Supplementation on Skin Rejuvenation: A Systematic Review and Meta-Analysis.
    Dewi DAR; Arimuko A; Norawati L; Yenny SW; Setiasih NL; Perdiyana A; Arkania N; Nadhira F; Wiliantari N · Cureus · 2024
    Meta-analysis967 participants14 studies pooledSkin Health forCollagen
  2. Effects of collagen-based supplements on skin's hydration and elasticity: A systematic review and meta-analysis.
    Danessa G; Notario D; Regina R · Indian journal of dermatology, venereology and leprology · 2025
    Meta-analysis646 participants10 studies pooledSkin Health forCollagen
  3. Oral intake of collagen peptide NS improves hydration, elasticity, desquamation, and wrinkling in human skin: a randomized, double-blinded, placebo-controlled study.
    Lee M; Kim E; Ahn H; Son S; Lee H · Food & function · 2023
    Randomized trial100 participantsSkin Health Anti-Aging forCollagen
  4. Efficacy and Safety of Topical or Oral Hydrolyzed Collagen in Women with Dermatoporosis: A Randomized, Double-Blind, Factorial Design Study.
    Guadanhim LRS; Miot HA; Soares JLM; Silva SAM; Leonardi GR; Lopes RD; Bagatin E · Dermatology and therapy · 2023
    Randomized trial56 participantsSkin Health forCollagen
  5. The Sustained Effects of Bioactive Collagen Peptides on Skin Health: A Randomized, Double-Blind, Placebo-Controlled Clinical Study.
    Wang Y; Zhu W; Luo W; Ma Y; Zhou Y · Journal of cosmetic dermatology · 2025
    Randomized trial77 participantsSkin Health forCollagen
  6. Effect of oral intake of choline-stabilized orthosilicic acid on skin, nails and hair in women with photodamaged skin.
    Barel A; Calomme M; Timchenko A; De Paepe K; Demeester N; Rogiers V; Clarys P; Vanden Berghe D · Archives of dermatological research · 2006
    Randomized trial50 participantsSkin Health Hair Health Nail Health forSilicon
  7. Limitations and Opportunities in Topical Drug Delivery: Interaction Between Silica Nanoparticles and Skin Barrier.
    Arriagada F; Morales J · Current pharmaceutical design · 2020
    Narrative reviewSkin Health forSilicon
  8. Low-Molecular-Weight Collagen Peptide Supplementation Improves Cellulite Severity, Skin Elasticity, and Hair Shaft Diameter: A Clinical Study with Pharmacokinetic Evaluation.
    Hwang S; Won J; Kim S; Kang W; Park M · Journal of medicinal food · 2026
    Randomized trial114 participantsHair Health forCollagen
  9. Calcium and Vitamin D Supplementation with and Without Collagen on Bone Density and Skin Elasticity in Menopausal Women-A Randomized Controlled Study.
    Duangjai A; Srivilai J; Nangola S; Amornlerdpison D · Clinics and practice · 2025
    Randomized trialHair Health forCollagen
  10. Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.
    Biełach-Bazyluk A; Jurga M; Flisiak I; Zbroch E · Nutrients · 2026
    Narrative reviewHair Health forCollagen
  11. Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails.
    Hexsel D; Zague V; Schunck M; Siega C; Camozzato FO; Oesser S · Journal of cosmetic dermatology · 2018
    Single-arm trial25 participantsNail Health forCollagen
  12. Influence of collagen peptide supplementation on visible signs of skin and nail health and -aging in an East Asian population: A double blind, randomized, placebo-controlled trial.
    Vleminckx S; Virgilio N; Asserin J; Prawitt J; Silva CIF · Journal of cosmetic dermatology · 2024
    Randomized trial85 participantsNail Health forCollagen
  13. Nail Supplements: When, How, and Why?
    Zaraa I; Richert B · Skin appendage disorders · 2026
    Narrative reviewNail Health forSilicon Nail Health forCollagen
  14. Effects of hydrolyzed collagen supplementation on skin aging: a systematic review and meta-analysis.
    de Miranda RB; Weimer P; Rossi RC · International journal of dermatology · 2021
    Meta-analysis1,125 participants19 studies pooledAnti-Aging Skin Health forCollagen
  15. Oral supplementation of specific collagen peptides has beneficial effects on human skin physiology: a double-blind, placebo-controlled study.
    Proksch E; Segger D; Degwert J; Schunck M; Zague V; Oesser S · Skin pharmacology and physiology · 2014
    Randomized trial69 participantsAnti-Aging forCollagen
  16. Skin Anti-Aging and Moisturizing Effects of Low-Molecular-Weight Collagen Peptide Supplementation in Healthy Adults: A Randomized, Double-Blind, Placebo-Controlled Clinical Trial.
    Lee E; Ahn DK; Kim JH; Lee S; Kim HJ; Lee HK; Shin JH · Journal of microbiology and biotechnology · 2025
    Randomized trial70 participantsAnti-Aging forCollagen
  17. Oral intake of specific bioactive collagen peptides reduces skin wrinkles and increases dermal matrix synthesis.
    Proksch E; Schunck M; Zague V; Segger D; Degwert J; Oesser S · Skin pharmacology and physiology · 2014
    Randomized trial114 participantsAnti-Aging forCollagen
  18. Study on the Multiple Efficacies of Vitamin C Serum in Anti-Glycation, Anti-Carbonylation, Antioxidation, and Anti-Inflammation of Human Skin Based on In Vivo Tests.
    Zi Y; Liu J; Liu Q; Pan Y; Jiang X · Journal of cosmetic dermatology · 2026
    Randomized trial66 participantsAnti-Aging forVitamin C
  19. Evaluation of the anti-wrinkle effect of a lipophilic pro-vitamin C derivative, tetra-isopalmitoyl ascorbic acid.
    Yokota M; Yahagi S · Journal of cosmetic dermatology · 2022
    Randomized trial69 participantsAnti-Aging forVitamin C
  20. The role of vitamin C in pushing back the boundaries of skin aging: an ultrasonographic approach.
    Crisan D; Roman I; Crisan M; Scharffetter-Kochanek K; Badea R · Clinical, cosmetic and investigational dermatology · 2015
    Clinical trial60 participantsAnti-Aging forVitamin C
  21. In vivo evaluation of topical ascorbic acid application on skin aging by 50 MHz ultrasound.
    Vergilio MM; Aiello LM; Furlan AS; Caritá AC; Azevedo JR; Bolzinger MA; Chevalier Y; Leonardi GR · Journal of cosmetic dermatology · 2022
    Randomized trial25 participantsAnti-Aging forVitamin C
  22. Clinical Applications of Vitamin C in Dermatology: A Systematic Review.
    Boghosian T; Mendez H; Boghosian N; Sayegh M; Beer J; Tosti A · The Journal of clinical and aesthetic dermatology · 2026
    Systematic review44 studies pooledAnti-Aging forVitamin C
  23. The Association between Dietary Nutrient Intake and Acceleration of Aging: Evidence from NHANES.
    Ma J; Li P; Jiang Y; Yang X; Luo Y; Tao L; Guo X; Gao B · Nutrients · 2024
    Cross-sectional study4,692 participantsAnti-Aging forZinc
  24. The immune system and the impact of zinc during aging.
    Haase H; Rink L · Immunity & ageing : I & A · 2010
    Narrative reviewAnti-Aging forZinc
  25. Associations between serum trace elements and biological age acceleration in the Chinese elderly: A community-based study investigating the mediating role of inflammatory markers and the moderating effect of physical activity.
    Wang Y; Zhu W; Zhang T; Liu Q; Zou M; Xie Y; Wang M; Wang TS; Pang Y; Jing T; Zhang R · Journal of hazardous materials · 2025
    Observational studyAnti-Aging forZinc
  26. Bidirectional associations of zinc supplement intake with biological ageing interacted by metabolic equivalent of task: A large-scale population-based Biobank study.
    Zhou Y; Zhou J; Li Z; Wang J; Li H; Yin X; Gao J; Wu Y; Li J; Sun YX; Li Y; Wang W; Eser PO; Assimes TL; He J; Chen G · Clinical nutrition (Edinburgh, Scotland) · 2025
    Cross-sectional study68,947 participantsAnti-Aging forZinc
  27. Zinc, metallothioneins, longevity: effect of zinc supplementation on antioxidant response: a Zincage study.
    Mocchegiani E; Zincage Consortium · Rejuvenation research · 2008
    Narrative reviewAnti-Aging forZinc
  28. Effect of oral intake of choline-stabilized orthosilicic acid on hair tensile strength and morphology in women with fine hair
    R R Wickett, E Kossmann, A Barel, N Demeester, P Clarys, D Vanden Berghe, M Calomme · Archives of Dermatological Research · 2007
    Randomized trial48 participantsHair Health forSilicon
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. Expanding the COL7A1 mutation database: novel and recurrent mutations and unusual genotype-phenotype constellations in 41 patients with dystrophic epidermolysis bullosa.
    Kern JS; Kohlhase J; Bruckner-Tuderman L; Has C · The Journal of investigative dermatology · 2006
    Observational study41 participantsNail Health forCollagen
  40. Vitamin C Deficiency in Inflammatory Bowel Disease: The Forgotten Micronutrient.
    Dunleavy KA; Ungaro RC; Manning L; Gold S; Novak J; Colombel JF · Crohn's & colitis 360 · 2023
    Other20 participantsNail Health forVitamin C
  41. Vitamins and minerals: their role in nail health and disease.
    Scheinfeld N; Dahdah MJ; Scher R · Journal of drugs in dermatology : JDD · 2007
    Narrative reviewNail Health forZinc
  42. Oral Intake of Low-Molecular-Weight Collagen Peptide Improves Hydration, Elasticity, and Wrinkling in Human Skin: A Randomized, Double-Blind, Placebo-Controlled Study.
    Kim DU; Chung HC; Choi J; Sakai Y; Lee BY · Nutrients · 2018
    Randomized trial64 participantsSkin Health forCollagen
  43. The Efficacy of a Silicone Sheet in Postoperative Scar Management.
    Kim JS; Hong JP; Choi JW; Seo DK; Lee ES; Lee HS · Advances in skin & wound care · 2018
    Randomized trialSkin Health forSilicon
  44. A non-inferiority study to compare the effect of silica gel fiber dressing with alginate dressing on healing of venous leg ulcers.
    Zhang L; Yang J; Wang H; Cai Y; Zhao W; Dong R; Liu D; Lu X · Wound management & prevention · 2023
    Randomized trial130 participantsSkin Health forSilicon
  45. 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 participantsSkin Health forSilicon
  46. Retrospective Study on the Clinical Superiority of the Vacuum-Assisted Closure System with a Silicon-based Dressing over the Conventional Tie-over Bolster Technique in Skin Graft Fixation.
    Chou PR; Wu SH; Hsieh MC; Huang SH · Medicina (Kaunas, Lithuania) · 2020
    Cohort study26 participantsSkin Health forSilicon
  47. Silicon gel sheeting for preventing and treating hypertrophic and keloid scars.
    O'Brien L; Pandit A · The Cochrane database of systematic reviews · 2006
    Meta-analysis559 participants13 studies pooledSkin Health forSilicon
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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