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Collagen Beauty

4.6
★ ★ ★ ★ ★
(839 ratings)
Biotin 2520 mcg
Collagen 2500 mg
Coenzyme Q-10 15 mg
Resveratrol 10 mg
Protein (unspecified) 4 Gram(s)
Product Image
Score73
Meaningful Verisol collagen, vitamin C, and biotin support a clear beauty purpose, but six softgels and lightly dosed extras make the formula cumbersome and expensive.
How scoring works
Softgel
Quantity:80 Softgel(s) • (13 servings)
Goals:
Skin Health
Nail Health
Anti-Aging
Hair Health

Score 73

Meaningful Verisol collagen, vitamin C, and biotin support a clear beauty purpose, but six softgels and lightly dosed extras make the formula cumbersome and expensive.
How scoring works
$28.99($2.23 per serving)
iHerb
$ 28.99
Amazon
$ 28.99
Vitacost
$ 31.09
Pure Formulas
$ 28.99
Report prices

Analysis

Verisol collagen peptides reach a practical beauty-support amount, while vitamin C supports collagen formation. Concentrated biotin and four grams of protein add further hair and nail relevance.

Flaxseed oil supplies most of the softgel material and creates a lipid environment that may help CoQ10 and resveratrol absorption. Those antioxidants are still present in small amounts, and neither the CoQ10 form nor active trans-resveratrol yield is disclosed.

It best fits adults willing to take six softgels for a collagen-centered beauty formula. The short bottle duration, high serving cost, unknown collagen source, and incomplete protein-to-collagen labeling weaken its appeal.

Who is it for
  • Adults seeking combined skin, hair, and nail support
  • Users comfortable taking six softgels per serving
Best for
  • Collagen-centered beauty support
  • People who want collagen with vitamin C and biotin

Pros

  • Provides a practical amount of branded Verisol collagen
  • Pairs collagen with vitamin C
  • Includes concentrated biotin and lipid-rich oils

Cons

  • Requires six softgels per serving
  • CoQ10 and resveratrol amounts are very small
  • Collagen animal source and amino acid profile are not disclosed

Warnings

  • Biotin can interfere with thyroid, hormone, and cardiac laboratory tests; stop it before testing when instructed.
  • The large flaxseed-oil amount may increase bleeding tendency when combined with anticoagulant or antiplatelet medicine.
  • Black pepper extract can alter absorption of some medicines by affecting drug-metabolizing enzymes.

Nutrient quality

75 High impact

Branded collagen peptides, vitamin C, and lipid delivery are useful formulation strengths. CoQ10 and resveratrol are lightly dosed, while high biotin is unnecessarily aggressive for routine use.

Ingredient transparency

83 Highest impact

Every listed active has a specific amount, and the collagen types are clearly named. Animal source, CoQ10 form, resveratrol active yield, complete usage directions, and non-active ingredients remain incomplete.

Customer satisfaction

75 High impact

The supplied average rating is very strong and rests on a sizable evidence base. No specific experience or complaint themes were provided, so consistency and purpose fit cannot be confirmed.

Value for money

53 Moderate impact

Meaningful collagen and vitamin C provide some formula value, but the serving is costly and burdensome. Low CoQ10 and resveratrol amounts make the product less competitive than more focused collagen options.

Report analysis

Goals

Skin Health
Skin Health
Impact
Highest effect
A Goal FitA- Strength of SupportB CoverageB Formula Quality
Vitamin C · 200 mgCollagen · 2500 mgResveratrol · 10 mg

Verisol collagen peptides, vitamin C, and several oils and antioxidants directly support skin structure and resilience. Verisol collagen reaches 2500 mg and vitamin C reaches 200 mg, while CoQ10 and resveratrol are small additions.

The formula covers structural collagen, collagen synthesis, lipid support, and antioxidant defense. Collagen and vitamin C provide meaningful depth, while several oils and antioxidants contribute less certain amounts.

Study evidence
Collagen Supportive 62 studies
Resveratrol Supportive 7 studies
Vitamin C Supportive 53 studies
Nail Health
Nail Health
Impact
Highest effect
A- Goal FitB+ Strength of SupportB CoverageA- Formula Quality
Collagen · 2500 mgBiotin · 2520 mcg

Branded collagen peptides, concentrated biotin, and vitamin C directly support nail structure, proliferation, and collagen formation. Collagen reaches a practical beauty-support amount, though the formula lacks zinc, silicon, keratin, or sulfur amino acids.

The main actives are clearly disclosed and logically paired, but the six-softgel serving is burdensome. Concentrated biotin can interfere with some thyroid, hormone, and cardiac blood tests, so use should be disclosed before laboratory testing.

Study evidence
Biotin Supportive 8 studies
Collagen Supportive 4 studies
Vitamin C Supportive 1 study
Anti-Aging
Anti-Aging
Impact
Highest effect
A- Goal FitA- Strength of SupportB CoverageB Formula Quality
Coenzyme Q-10 · 15 mgCollagen · 2500 mg

Verisol collagen provides direct structural support for skin, while vitamin C supports collagen formation and flaxseed oil contributes plant omega-3 fat. CoQ10, resveratrol, pomegranate, and gotu kola broaden the healthy-aging concept but are supplied at modest amounts.

The collagen amount is clearly disclosed and uses a branded peptide source, giving the formula meaningful depth for skin aging. The six-softgel serving is large, and flaxseed oil can add bleeding risk when combined with anticoagulant or antiplatelet medicines.

Study evidence
Coenzyme Q-10 Supportive 6 studies
Collagen Supportive 33 studies
Resveratrol No effect 7 studies
Vitamin C Supportive 30 studies
Hair Health
Hair Health
Impact
Highest effect
B+ Goal FitB+ Strength of SupportB CoverageB Formula Quality
Biotin · 2520 mcgVitamin C · 200 mgCollagen · 2500 mg

Branded collagen peptides, concentrated biotin, and vitamin C give the formula a clear structural and nutritional hair focus. Oils and gotu kola add secondary support for the scalp and surrounding tissue.

The collagen amount fits the branded skin-focused use, although the animal source and amino acid profile are not provided. The concentrated biotin may interfere with thyroid, hormone, and cardiac blood tests, so use should be disclosed before testing.

Study evidence
Biotin Supportive 4 studies
Collagen Supportive 3 studies
Vitamin C Mixed 5 studies

Ingredients

IngredientAmount per serving
Calories
70 Calorie(s)
Total Fat
4.5 Gram(s)
Total Carbohydrates
2 Gram(s)
Protein
4 Gram(s)
Vitamin A (Beta-Carotene)
 1612 mcg
Vitamin C (Ascorbic Acid)
 200 mg
Biotin
2520 mcg
Calcium
100 mg
Sodium
10 mg
Flaxseed Oil
3000 mg
Verisol (Collagen Type I and III)
 2500 mg
Coconut Oil
200 mg
Gotu Kola Whole Herb Extract
150 mg
Apricot Oil
100 mg
Evening Primrose Seed Oil
100 mg
Grape Seed Oil
100 mg
Pomegranate Fruit Extract
100 mg
Moroccan Argan Oil
50 mg
Coenzyme Q10
15 mg
Resveratrol (Japanese Knotweed root extract)
 10 mg
BioPerine Complex
6 mg
Adults 18–50 Women
Report overview
Biotin · 2520 mcg OverallScore78
B+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyC Value

The biotin amount reaches a focused hair and nail range, and the liquid softgel supports clean delivery. The label does not identify d-Biotin, leaving the active isomer uncertain. The concentrated amount may interfere with some lab tests, so use should be disclosed before blood work.

View ingredientView products
Collagen (Collagen Type I and III) · 2500 mg OverallScore48
A- Active Ingredient Quality & BioavailabilityF Dose, Safety & Label TransparencyF Value

Verisol supplies a branded collagen peptide form with disclosed types I and III, although the animal source is not stated. The 2,500 mg amount fits the skin-focused dose band, but protein labeling does not closely match the collagen weight and no amino acid profile is shown. The 2,520 mcg biotin dose can interfere with some thyroid, hormone, and cardiac blood tests, so the laboratory should be told before testing.

View ingredientView products
Coenzyme Q-10 · 15 mg OverallScore34
D- Active Ingredient Quality & BioavailabilityD Dose, Safety & Label TransparencyF Value

Multiple plant oils and BioPerine create a strong absorption environment, but the CoQ10 molecular form is not disclosed. The 15 mg amount is far below the stated effective range and requires six softgels. Extremely high cost per effective CoQ10 dose makes value poor despite the broader beauty-oil formula.

View ingredientView products
Loading alternative details
87 Performance

Collagen + C 2500 mg

Spring Valley
<p>Branded collagen and vitamin C create a focused structural formula with a meaningful collagen amount and much stronger serving value. Animal source, collagen type, excipients, and a protein-to-collagen declaration mismatch limit full label confidence, but the formula avoids the original’s lightly dosed CoQ10 and resveratrol extras.</p>
83 Performance

High Potency Maxi-Collagen 7000

Country Life
<p>A full gram-level combination of hydrolyzed collagen and branded peptides provides stronger structural protein support, with vitamin C and biotin as useful complements. The focused formula delivers substantially more collagen than the original while retaining favorable skin, hair, and nail alignment.</p>
75 Performance

Grass Fed Collagen Beauty Cranberry Pomegranate

Garden of Life
<p>A substantial collagen-peptide serving with vitamin C, silica, and biotin provides broader direct beauty support than the original’s smaller collagen amount and token antioxidants. A hidden beauty blend and a probiotic without viability details reduce transparency, but the core structural ingredients remain strong.</p>
69 Budget

Liquid Collagen Complex Healthy Hair Skin & Nails Delicious Grape Flavor

RejuviCare
<p>Biotin and pantothenic acid provide a much less expensive beauty-focused nutrient base in a liquid format. Its collagen amount is far below a meaningful gram-level serving, so the cost advantage comes with much weaker structural support than the original.</p>
73 Budget

Collagen 1500 + C

Mason Natural
<p>Hydrolyzed bovine collagen, vitamin C, and biotin retain the original formula’s core beauty ingredients at a much lower serving cost. The collagen amount is smaller, the multi-capsule serving reduces convenience, and high biotin may interfere with some laboratory tests.</p>
58 Budget

Alive! Hair Skin & Nails Gummies Delicious Strawberry Flavored

Nature's Way
<p>Biotin and vitamin C provide inexpensive hair, skin, and nail support in a convenient gummy. Collagen is far below a meaningful gram-level amount, high biotin may affect laboratory tests, and the tiny fruit-and-vegetable blend adds little depth.</p>
80 Value

Maxi-Skin Collagen + C&A Powder Flavorless

Country Life
<p>Branded hydrolyzed collagen peptides and vitamin C provide a focused skin-structure formula with meaningful collagen and excellent relative value. Source and collagen-type details remain incomplete, but the simple powder avoids the original’s high biotin and lightly dosed CoQ10 and resveratrol.</p>
75 Value

Collagen

youtheory men
<p>A meaningful hydrolyzed collagen serving with vitamin C provides economical structural protein support. Added fo-ti raises a notable liver-safety concern, so the value advantage does not make it a good routine choice for users who want the cleaner risk profile.</p>
68 Value

Alive! Hair Skin & Nails Gummies Delicious Strawberry Flavored

Nature's Way
<p>Vitamin C, biotin, and zinc provide accessible hair and nail nutrition at a much lower serving cost. Collagen and silica are small, the gummy adds carbohydrate, and a hidden fruit-and-vegetable blend limits transparency, so it is better value only for basic micronutrient support.</p>
Report alternatives

Sources

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

  1. Evaluation of biophysical skin parameters and hair changes in patients with acne vulgaris treated with isotretinoin, and the effect of biotin use on these parameters.
    Aksac SE; Bilgili SG; Yavuz GO; Yavuz IH; Aksac M; Karadag AS · International journal of dermatology · 2021
    Non-randomized trial60 participantsSkin Health forBiotin
  2. Anti-pollution cosmetic-based one-step formation of w/o/w multiple emulsion containing D-biotin for skin protection: fabrication and in vitro and in vivo evaluation.
    Ali A; Iqbal S; Ilyas A; Khan H; Asad MHHB; Fatima N; Akhtar N · Drug delivery and translational research · 2020
    Non-randomized trial15 participantsSkin Health forBiotin
  3. Interventions for infantile seborrhoeic dermatitis (including cradle cap).
    Victoire A; Magin P; Coughlan J; van Driel ML · The Cochrane database of systematic reviews · 2019
    Systematic review35 participants2 studies pooledSkin Health forBiotin
  4. 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
  5. 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
  6. 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
  7. 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 Nail Health forBiotin
  8. 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
  9. 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
  10. Biotin for the treatment of nail disease: what is the evidence?
    Lipner SR; Scher RK · The Journal of dermatological treatment · 2018
    Narrative reviewNail Health forBiotin
  11. Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy.
    Colombo VE; Gerber F; Bronhofer M; Floersheim GL · Journal of the American Academy of Dermatology · 1991
    Other32 participantsNail Health forBiotin
  12. Brittle nails: response to daily biotin supplementation.
    Hochman LG; Scher RK; Meyerson MS · Cutis · 1993
    Case series35 participantsNail Health forBiotin
  13. Coenzyme Q10 and Degenerative Disorders Affecting Longevity: An Overview.
    Mantle D; Hargreaves I · Antioxidants (Basel, Switzerland) · 2020
    Narrative reviewAnti-Aging forCoenzyme Q-10
  14. Coenzyme Q10 Supplementation in Aging and Disease.
    Hernández-Camacho JD; Bernier M; López-Lluch G; Navas P · Frontiers in physiology · 2022
    Narrative reviewAnti-Aging forCoenzyme Q-10
  15. Coenzyme Q10, a cutaneous antioxidant and energizer.
    Hoppe U; Bergemann J; Diembeck W; Ennen J; Gohla S; Harris I; Jacob J; Kielholz J; Mei W; Pollet D; Schachtschabel D; Sauermann G; Schreiner V; Stäb F; Steckel F · BioFactors (Oxford, England) · 1999
    Clinical trialAnti-Aging forCoenzyme Q-10
  16. Supplements and Drugs Are Associated With Biological Age in a Cohort of Exceptionally Healthy Individuals.
    Pabis K; Wang W; Selvarajoo K; Budovskaya YV; Sorrentino V; Gruber J; Kennedy BK · Aging cell · 2026
    Cross-sectional study4,260 participantsAnti-Aging forCoenzyme Q-10
  17. Coenzyme Q10 supplementation raises plasma levels without improving mitochondrial function in older adults.
    Schmücker M; Tranberg C; Borch J; Kaae MK; Damgaard M; Flensted-Jensen M; Blom I; Morosetti M; Barbarossa S; Orlando P; Tiano L; Dela F; Helge JW; Larsen S · GeroScience · 2026
    Randomized trial40 participantsAnti-Aging forCoenzyme Q-10
  18. 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 participantsAnti-Aging Skin Health forCollagen
  19. 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
  20. 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
  21. 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
  22. 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
  23. Effects of resveratrol on memory performance, hippocampal functional connectivity, and glucose metabolism in healthy older adults.
    Witte AV; Kerti L; Margulies DS; Flöel A · The Journal of neuroscience : the official journal of the Society for Neuroscience · 2014
    Randomized trial46 participantsAnti-Aging forResveratrol
  24. Effects of resveratrol on memory performance, hippocampus connectivity and microstructure in older adults - A randomized controlled trial.
    Huhn S; Beyer F; Zhang R; Lampe L; Grothe J; Kratzsch J; Willenberg A; Breitfeld J; Kovacs P; Stumvoll M; Trampel R; Bazin PL; Villringer A; Witte AV · NeuroImage · 2019
    Randomized trial60 participantsAnti-Aging forResveratrol
  25. Resveratrol levels and all-cause mortality in older community-dwelling adults.
    Semba RD; Ferrucci L; Bartali B; Urpí-Sarda M; Zamora-Ros R; Sun K; Cherubini A; Bandinelli S; Andres-Lacueva C · JAMA internal medicine · 2014
    Cohort study783 participantsAnti-Aging forResveratrol
  26. Impact of Resveratrol Supplementation on Human Sirtuin 1: A Grading of Recommendations Assessment, Development and Evaluation-Assessed Systematic Review and Dose-Response Meta-Analysis of Randomized Controlled Trials.
    Mansouri F; Feliziani G; Bordoni L; Gabbianelli R · Journal of the Academy of Nutrition and Dietetics · 2025
    Meta-analysis11 studies pooledAnti-Aging forResveratrol
  27. Trans-resveratrol reduces visible signs of skin ageing in healthy adult females over 40: an 8-week randomized placebo-controlled trial.
    Rao A; Briskey D; Roche G; Tremblay A; Da Silva Pinto M; Tompkins TA · Frontiers in aging · 2026
    Randomized trial134 participantsAnti-Aging Skin Health forResveratrol
  28. 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. Treatment of brittle nail with a hydroxypropyl chitosan-based lacquer, alone or in combination with oral biotin: A randomized, assessor-blinded trial.
    Chiavetta A; Mazzurco S; Secolo MP; Tomarchio G; Milani M · Dermatologic therapy · 2020
    Randomized trial50 participantsNail Health forBiotin
  43. 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 forBiotin
  44. 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
  45. 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
  46. Nail Supplements: When, How, and Why?
    Zaraa I; Richert B · Skin appendage disorders · 2026
    Narrative reviewNail Health forCollagen
  47. 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
  48. 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
  49. 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
  50. Efficacy and safety of Resveratrol combined with Ablative Fractional CO2 laser system in the treatment of skin photoaging.
    Du YM; Zeng J; Li M; Wang YB; Wu Y; Qi RQ; Gao XH; Chen HD · Journal of cosmetic dermatology · 2021
    Non-randomized trial32 participantsSkin Health forResveratrol
  51. Exploring resveratrol-enriched collagen dressings for diabetic foot ulcers: A retrospective study of wound healing outcomes.
    Sezikli İ; Kendirci M · Journal of tissue viability · 2025
    Cohort study41 participantsSkin Health forResveratrol
  52. Enhanced antioxidant effect of trans-resveratrol: potential of binary systems with polyethylene glycol and cyclodextrin.
    Moyano-Mendez JR; Fabbrocini G; De Stefano D; Mazzella C; Mayol L; Scognamiglio I; Carnuccio R; Ayala F; La Rotonda MI; De Rosa G · Drug development and industrial pharmacy · 2016
    Clinical trialSkin Health forResveratrol
  53. Resveratrol-Loaded Lipid Nanocarriers: Correlation between In Vitro Occlusion Factor and In Vivo Skin Hydrating Effect.
    Montenegro L; Parenti C; Turnaturi R; Pasquinucci L · Pharmaceutics · 2020
    Clinical trial12 participantsSkin Health forResveratrol
  54. 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
  55. 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
  56. 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
  57. 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
  58. 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