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Collagen with Biotin & Vitamin C Unflavored

ALLMAX
4.5
★ ★ ★ ★ ★
(645 ratings)
Biotin 10000 mcg
Protein 9 Gram(s)
Product Image
Score78
Best suited to adults wanting a high-dose unflavored collagen powder who can manage the biotin exposure; the 10,000 mcg biotin amount is excessive for most users and creates a serious laboratory-test interference concern without adding clear benefit when intake is adequate.
How scoring works
Quantity:15 Ounce(s) • (44 servings)
Goals:
Nail Health
Skin Health
Hair Health

Score 78

Best suited to adults wanting a high-dose unflavored collagen powder who can manage the biotin exposure; the 10,000 mcg biotin amount is excessive for most users and creates a serious laboratory-test interference concern without adding clear benefit when intake is adequate.
How scoring works
$23.99($0.54 per serving)
iHerb
$ 31.44
Vitacost
$ 31.35
Amazon
$ 23.99
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Analysis

A focused 10 g hydrolyzed collagen powder with 9 g protein and vitamin C supplies strong structural support without a crowded blend. The disclosed amounts make the main contribution reasonably easy to judge.

The 10,000 mcg biotin amount is excessive for most users and creates a serious laboratory-test interference concern without adding clear benefit when intake is adequate. Practical value depends on whether the main active and format match the user’s priority.

The product is best suited to adults wanting a high-dose unflavored collagen powder who can manage the biotin exposure. Benefits for appearance, structure, or wellness should be viewed as nutritional support rather than a guaranteed visible change.

Who is it for
  • Adults wanting a high-dose unflavored collagen powder who can manage the biotin exposure
  • Adults whose diet leaves a gap addressed by the core ingredients
  • Users comfortable with the listed format and serving size
Best for
  • Substantial hydrolyzed collagen amount
  • Nine grams of protein per serving
  • Users who accept that biotin amount is extremely high

Pros

  • Substantial hydrolyzed collagen amount
  • Nine grams of protein per serving
  • Vitamin C supports collagen formation
  • Unflavored powder is easy to mix

Cons

  • Biotin amount is extremely high
  • Collagen animal source and types are not supplied
  • Powder is less portable than capsules
  • Biotin likely adds little without inadequate intake

Warnings

  • The 10,000 mcg biotin amount can substantially distort thyroid, hormone, and cardiac troponin blood tests; disclose use and follow the laboratory’s stop-time instructions before testing.
  • The collagen source is not identified, so users with animal-protein allergies or dietary restrictions should verify it.
  • High-dose biotin can cause acne-like skin reactions in some people; stop and reassess if a new rash appears.

Nutrient quality

81 Highest impact

Hydrolyzed collagen peptides are a practical and clearly identified form, and collagen, vitamin C, and biotin are all present in substantial amounts. The exceptionally high biotin amount can distort thyroid, hormone, and cardiac laboratory tests, while the focused formula avoids low-value active extras.

Ingredient transparency

80 High impact

Specific amounts are listed for every supplied active ingredient. No proprietary blend hides active doses, while flavoring controls and other inactive powder details are not provided.

Customer satisfaction

69 High impact

The supplied aggregate satisfaction metric is favorable, and the feedback volume is sufficient for a reasonably stable aggregate metric. No review excerpts were provided, so recurring complaints and purpose-specific experiences cannot be checked.

Value for money

82 Highest impact

A large collagen dose and focused formula support good value. Each serving provides substantial structural protein at a moderate cost, while the formula avoids decorative extras.

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Goals

Nail Health
Nail Health
Impact
Highest effect
A+ Goal FitA+ Strength of SupportA CoverageA+ Formula Quality
Collagen · 10 Gram(s)Biotin · 10000 mcg

A full hydrolyzed collagen peptide dose, very high biotin, and vitamin C provide strong structural and keratin support. The combination is closely aligned with nail growth, thickness, and resilience.

Exact collagen and vitamin amounts make the active contribution easy to assess, although the biotin isomer is not specified. The biotin amount can interfere with laboratory tests, so it should be disclosed before blood work.

Study evidence
Biotin Supportive 8 studies
Collagen Supportive 4 studies
Vitamin C Supportive 1 study
Skin Health
Skin Health
Impact
Highest effect
A+ Goal FitA+ Strength of SupportA- CoverageA Formula Quality
Vitamin C · 90 mgCollagen · 10 Gram(s)

Hydrolyzed collagen peptides provide a clinically relevant structural dose, while vitamin C supports collagen synthesis. The combination directly targets elasticity and dermal structure with stronger evidence than most general beauty vitamins.

Ten grams of collagen and clear hydrolyzed form disclosure provide excellent depth, while biotin adds little unless deficiency is present. The 10,000 mcg biotin amount can distort thyroid, hormone, and cardiac troponin blood tests before laboratory testing.

Study evidence
Biotin Supportive 10 studies
Collagen Supportive 62 studies
Vitamin C Supportive 53 studies
Hair Health
Hair Health
Impact
Highest effect
B+ Goal FitA+ Strength of SupportB+ CoverageA+ Formula Quality
Biotin · 10000 mcgVitamin C · 90 mgCollagen · 10 Gram(s)

Hydrolyzed collagen, vitamin C, and biotin directly support hair-shaft building blocks and related nutrient needs. Collagen has moderate human support for hair quality, while biotin evidence is strongest when deficiency exists.

Ten grams of collagen and 90 mg of vitamin C provide meaningful structural support, alongside a very high biotin amount. The three actives form a coherent hair-structure formula, but 10,000 mcg biotin can interfere with thyroid, cardiac, and hormone laboratory tests.

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

Ingredients

IngredientAmount per serving
Calories
35 Calorie(s)
Protein
9 Gram(s)
Vitamin C (Ascorbic Acid)
 90 mg
Biotin
10000 mcg
Collagen Peptides, Hydrolyzed
10 Gram(s)
Gluten Free Adults 18–50
Report overview
Biotin · 10000 mcg OverallScore85
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyC Value

The high biotin amount is paired with collagen peptides and vitamin C for a broader structural-support formula. The unflavored powder is free of disclosed artificial colors or sweeteners, though the biotin isomer is not identified. High-dose biotin can interfere with laboratory tests, so it should be reported before blood work.

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Loading alternative details
86 Performance

W 100% Whey Isolate Protein Natural Flavor

Biochem
Whey isolate provides a complete, digestible protein serving with little carbohydrate. It offers a clearer or more substantial ingredient approach than the original for users whose needs match its purpose, although it does not provide collagen, biotin, or a targeted beauty pathway.
82 Performance

Whey Protein Isolate Unflavored

California Gold Nutrition SPORT
A substantial lean whey isolate serving provides clearly listed complete protein. It offers a clearer or more substantial ingredient approach than the original for users whose needs match its purpose, although it is general protein nutrition rather than targeted collagen or beauty support.
82 Performance

Whey Protein Unflavored

Lake Avenue Nutrition
Whey protein supplies a meaningful complete-protein serving with clear core nutrient amounts. It offers a clearer or more substantial ingredient approach than the original for users whose needs match its purpose, although it lacks collagen-specific peptides and targeted beauty cofactors.
84 Budget

Biotin 5000 mcg

Spring Valley
Active d-biotin provides simple, focused supplementation at a very low cost. It costs less per serving than the original, but the high amount can interfere with laboratory tests and offers no structural protein.
89 Budget

Biotin 10000 mcg

California Gold Nutrition
Explicit d-biotin labeling and a simple softgel provide clear, focused hair and nail nutrition. It costs less per serving than the original, but the very high amount can disrupt thyroid, cardiac, hormone, and other laboratory tests.
84 Budget

Biotin 10000 mcg

Nature's Bounty
A very high amount of active d-biotin is clearly disclosed in a focused formula. It costs less per serving than the original, but benefit is mainly relevant to inadequate biotin intake and testing interference is a concern.
83 Value

Biotin 5000 mcg

Doctor's Best
A clearly quantified biotin capsule offers economical, focused hair and nail nutrition. It provides a stronger balance of ingredient quality and value than the original, although the active d-biotin isomer is not confirmed and the high amount may affect tests.
83 Value

Biotin 5000 mcg

Lake Avenue Nutrition
A simple high-biotin capsule avoids active padding and has a clearly disclosed amount. It provides a stronger balance of ingredient quality and value than the original, although the active isomer is unconfirmed and laboratory-test interference remains possible.
82 Value

High Potency Biotin 10 mg

Country Life
Active d-biotin provides a clear, high-potency option for focused use. It provides a stronger balance of ingredient quality and value than the original, although the very high amount may affect laboratory tests and cannot replace collagen peptides.
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Sources

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

  1. 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 Hair Health Nail Health forBiotin
  2. 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
  3. 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
  4. 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
  5. Biotinidase deficiency: the enzymatic defect in late-onset multiple carboxylase deficiency.
    Wolf B; Grier RE; Allen RJ; Goodman SI; Kien CL · Clinica chimica acta; international journal of clinical chemistry · 1983
    Case series5 participantsSkin Health forBiotin
  6. 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 Skin Health forBiotin
  7. 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
  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. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. Nail Supplements: When, How, and Why?
    Zaraa I; Richert B · Skin appendage disorders · 2026
    Narrative reviewNail Health forCollagen
  24. 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
  25. 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
  26. Generalized seborrhoeic dermatitis. Clinical and therapeutic data of 25 patients.
    Messaritakis J; Kattamis C; Karabula C; Matsaniotis N · Archives of disease in childhood · 1976
    Non-randomized trial25 participantsSkin Health forBiotin
  27. Holocarboxylase synthetase deficiency: novel clinical and molecular findings.
    Tammachote R; Janklat S; Tongkobpetch S; Suphapeetiporn K; Shotelersuk V · Clinical genetics · 2010
    Case series4 participantsSkin Health forBiotin
  28. 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
  29. 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
  30. 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 forCollagen
  31. 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
  32. 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 pooledSkin Health forCollagen
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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