Collagen with Biotin & Vitamin C Unflavored
Goals
$23.99 $0.54 per serving
Product analysis
Collagen with Biotin & Vitamin C Unflavored combines vitamin C and biotin for normal skin and nail nutrition. The unspecified collagen preparation makes cosmetic benefits harder to predict.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality25
The vitamin C source is named, while the collagen and biotin forms remain unspecified. Those omissions prevent a confident comparison of the key ingredients’ quality.
Ingredient Transparency70
Ingredient amounts are stated, but some forms are not identified. That limits a full comparison of ingredient quality.
Value For Money58
The collagen contribution appears economical, while biotin offers middling value. The protein and vitamin C comparisons remain uncertain, limiting a judgment about the whole formula.
Customer Satisfaction75
Customer feedback is positive, though the number of ratings is relatively limited. Ratings reflect satisfaction and cannot establish effectiveness or safety.
Product Focus72
The formula centers on skin, hair and nail nutrition. Benefits depend on nutritional needs and the collagen preparation, with direct cosmetic effects less certain.
- Format
Powder - Container
- 15 Ounce(s)
- Per serving
- $0.54
- Customer rating
- 4.6 · 645 ratings
Goals
Impact
Highest effect
Collagen · 10 Gram(s)Biotin · 10000 mcg
Biotin may help brittle nails, but the evidence comes largely from small uncontrolled studies. Collagen peptides also receive consideration for structural support; the supplied brittle-nail study used VERISOL, and this generic hydrolysate does not establish equivalence. The large collagen and biotin amounts receive no extra recognition above the comparison range. Vitamin C's normal collagen role does not prove added nail benefit.
How this product is rated for Nail Health
Ingredient fit96
Biotin and collagen reach the full comparison range; vitamin C falls below its amount threshold.
Goal fit
Biotin and collagen reach the full comparison range.
Dose adequacy
The credited amounts reach the full comparison range; larger amounts do not establish larger nail benefits.
Pathways100
Biotin provides nail-formation cofactor coverage, with a smaller structural-protein contribution from generic collagen.
Depth
Nail-formation cofactors have the strongest recorded coverage; structural protein contributes less.
Breadth
Two categories reach the saved breadth threshold; this does not prove combined clinical benefit.
Evidence93
Biotin leads the saved evidence finding, but the nail-specific evidence remains limited and mostly uncontrolled.
Evidence strength
Biotin leads the saved evidence finding, but the nail-specific evidence remains limited and mostly uncontrolled.
Studied preparation
The saved findings do not identify collagen as matching a studied preparation; the remaining credited ingredients receive preparation recognition.
Formulation logic100
The credited ingredients have no missing required partner or identified configured conflict. Their amounts pass the saved minimum threshold.
Partner coverage
Every credited ingredient can stand alone or has its required partner; this does not establish synergy.
Conflicts
No configured conflict was identified from the supplied ingredients and amounts.
Effective doses
All credited ingredients pass the saved minimum-amount threshold, which does not prove nail improvement.
Impact
Moderate effect
Vitamin C · 90 mgCollagen · 10 Gram(s)
Vitamin C at 90 mg supports normal collagen formation, while biotin contributes to normal skin function. Meeting those nutritional needs matters more than the very high biotin amount for someone with adequate status.
Collagen is present with an unresolved dose and preparation in the supplied assessment. The oral collagen evidence is preparation-specific and uncertain, limiting expectations for skin hydration or appearance.
How this product is rated for Skin Health
Ingredient fit73
The assessed ingredients give a focused contribution to skin-related nutrition. The saved findings show partial overall dose support, with small or unresolved amounts limiting the contribution.
Goal fit
The assessed ingredients give a focused contribution to skin-related nutrition.
Dose adequacy
The saved findings show partial overall dose support, with small or unresolved amounts limiting the contribution.
Pathways0
No specific skin pathway receives coverage in the saved findings. No reviewed skin pathway reaches the saved coverage threshold.
Depth
No specific skin pathway receives coverage in the saved findings.
Breadth
No reviewed skin pathway reaches the saved coverage threshold.
Evidence54
Vitamin B7 (Biotin) supplies the strongest effective ingredient evidence in the saved assessment, within the limitations of the supplied skin-health evidence.
Evidence strength
Vitamin B7 (Biotin) supplies the strongest effective ingredient evidence in the saved assessment, within the limitations of the supplied skin-health evidence.
Studied preparation
The effective ingredients match preparations accepted in the saved review.
Formulation logic88
The reviewed contributors can work independently or have their required partners. No matched ingredient conflict was recorded in the saved assessment.
Partner coverage
The reviewed contributors can work independently or have their required partners.
Conflicts
No matched ingredient conflict was recorded in the saved assessment.
Effective doses
1 of 2 assessed ingredients meet the saved minimum dose threshold; below it: Collagen.
Impact
Moderate effect
Biotin · 10000 mcgVitamin C · 90 mgCollagen · 10 Gram(s)
Biotin may help with shedding caused by a biotin shortage, but the large amount here doesn't predict regrowth when you already get enough. Collagen adds a different uncertainty: the saved facts don't resolve its amount or show that it matches the specific preparation associated with improved hair gloss, elasticity and diameter. Those hair-shaft changes also differ from growing new hair.
How this product is rated for Hair Health
Ingredient fit79
The ingredients have nutritional or preparation-specific connections to hair, with benefits dependent on the underlying need.
Goal fit
The relevant ingredients are focused on hair-related nutritional or ingredient roles. That focus alone does not predict a visible change in hair.
Dose adequacy
Declared amounts vary in how closely they match ingredient-specific comparison amounts; this does not identify a dose that will regrow hair.
Pathways0
No direct contribution to the named hair mechanisms is identified here. Nutrient-related effects may still depend on a shortage.
Depth
No direct contribution to the named hair mechanisms is identified here. Nutrient-related effects may still depend on a shortage.
Breadth
The ingredients do not provide broad contributions across the named hair mechanisms.
Evidence80
Biotin is most relevant to deficiency-related shedding, rather than routine regrowth when intake is adequate.
Evidence strength
Biotin is most relevant to deficiency-related shedding, rather than routine regrowth when intake is adequate.
Studied preparation
The relevant forms match the saved ingredient context, but matching a form does not guarantee hair growth.
Formulation logic88
No missing required partner or matching ingredient conflict is identified; amount comparisons do not guarantee a hair benefit.
Partner coverage
No missing required ingredient partner is identified. This does not imply added benefit simply from combining ingredients.
Conflicts
No matching ingredient conflict is identified in the available product facts.
Effective doses
Collagen fall below the saved amount comparison; this is not proof that the serving cannot help.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 35 Calorie(s) | |
Protein | 9 Gram(s) | |
Vitamin C (Ascorbic Acid) | 90 mg | |
Biotin | 10000 mcg | |
Collagen Peptides, Hydrolyzed | 10 Gram(s) |
Biotin · 10000 mcg OverallScore83
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Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- 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.
- Low serum biotinidase activity in children with valproic acid monotherapy.
- Vitamins A, B, C, and D: A Short Review for the Dermatologist.
- The Infatuation With Biotin Supplementation: Is There Truth Behind Its Rising Popularity? A Comparative Analysis of Clinical Efficacy versus Social Popularity.
- Low-Molecular-Weight Collagen Peptide Supplementation Improves Cellulite Severity, Skin Elasticity, and Hair Shaft Diameter: A Clinical Study with Pharmacokinetic Evaluation.
- Calcium and Vitamin D Supplementation with and Without Collagen on Bone Density and Skin Elasticity in Menopausal Women-A Randomized Controlled Study.
- Dietary Collagen Supplementation as a Strategy for Skin Health: A Narrative Review of Clinical Effects on Skin, Hair, Nails, and Wound Healing.
- Management of hair loss associated with endocrine therapy in patients with breast cancer: an overview.
- Elucidating causal relationships of diet-derived circulating antioxidants and the risk of non-scarring alopecia: A Mendelian randomization study.
- Alterations of plasma antioxidants and mitochondrial DNA mutation in hair follicles of smokers.
- Removal of synthetic hair dye using formamidine sulfinic acid and other sulfinate precursors.
- A Zinc Sulphate-Resistant Acrodermatitis Enteropathica Patient with a Novel Mutation in SLC39A4 Gene.
- Biotin for the treatment of nail disease: what is the evidence?
- Treatment of brittle fingernails and onychoschizia with biotin: scanning electron microscopy.
- Treatment of brittle nail with a hydroxypropyl chitosan-based lacquer, alone or in combination with oral biotin: A randomized, assessor-blinded trial.
- Vitamins and minerals: their role in nail health and disease.
- Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails.
- 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.
- Nail Supplements: When, How, and Why?
- Expanding the COL7A1 mutation database: novel and recurrent mutations and unusual genotype-phenotype constellations in 41 patients with dystrophic epidermolysis bullosa.