$36.76 $1.22 per serving
Product analysis
Keratin Care supplies biotin for hair affected by inadequate intake and may help brittle nails, although the nail evidence is limited. Its unnamed blend contents make the full formula difficult to assess.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality27
The biotin and keratin forms are unspecified, limiting detailed quality comparisons. Unnamed blend contents and limited information about other forms leave the complete mix uncertain.
Ingredient Transparency62
Serving amounts are disclosed for the listed ingredients. Most forms and the blend's individual contents are unidentified, making the full mix difficult to compare.
Value For Money35
The keratin and resveratrol comparisons indicate limited value for the serving. Several other ingredients lack enough information for a dependable price comparison.
Customer Satisfaction67
The available customer feedback is very positive. The small number of ratings limits confidence in how widely that experience applies.
Product Focus40
The intended uses are concentrated on hair and nail health. Biotin's benefits depend on the circumstances, and undisclosed blend contents limit confidence in the complete formula.
- Format
Capsule - Container
- 30 Capsule(s)
- Per serving
- $1.22
- Customer rating
- 4.5 · 17 ratings
Goals
Impact
Highest effect
Biotin · 5000 mcgKeratin · 500 mg
Biotin may help brittle nails, but the supporting studies were small and mostly uncontrolled, so durable improvements in nail strength are uncertain. The declared serving meets or exceeds the amount used in those studies; higher amounts do not establish a greater benefit. Cynatine keratin has combination-specific human findings, but its amount here is unknown and cannot establish the studied exposure.
How this product is rated for Nail Health
Ingredient fit78
Biotin provides the clearest nail-specific connection, with other ingredients and their amounts shaping how focused the formula is.
Goal fit
The formula includes ingredients recognized for this goal alongside ingredients aimed at other uses.
Dose adequacy
Biotin meets the amount comparison, while the unknown keratin amount limits the combined finding.
Pathways70
The saved findings distinguish keratin-related cofactors, matrix support and structural protein supply; coverage is described separately below.
Depth
The strongest saved route concerns cofactors involved in forming nail keratin, led by biotin where its amount qualifies.
Breadth
Only the keratin-related cofactor route reaches the coverage criterion; structural protein supply and matrix support remain limited.
Evidence100
The saved ingredient and preparation findings must be read alongside the limited nail-specific human evidence.
Evidence strength
Biotin leads the saved finding, with expectations limited by small, mostly uncontrolled nail studies.
Studied preparation
The ingredients meeting the amount criterion are recognized in the preparation comparison; this does not strengthen the underlying nail studies.
Formulation logic88
Biotin has a declared amount, while the unknown keratin amount limits the formulation finding.
Partner coverage
No required partner is missing for the recognized ingredients; this does not establish an added combination benefit.
Conflicts
None of the specified conflicts was triggered in the supplied findings.
Effective doses
Biotin reaches the minimum amount criterion; keratin does not because its amount is unknown.
Impact
High effect
Biotin · 5000 mcgKeratin · 500 mg
Biotin can help hair affected by deficiency or rare hair-shaft disorders, but 5000 mcg per serving does not establish extra growth in people with adequate intake. Keratin is relevant to hair structure, yet this serving receives no preparation-specific keratin contribution. Vitamin A's normal cell functions do not establish routine regrowth.
How this product is rated for Hair Health
Ingredient fit80
The formula's relevant ingredients receive partial amount allowance, alongside the focus finding below.
Goal fit
Relevant ingredients share the formula with broader nutritional or other uses.
Dose adequacy
The recognized amounts receive partial allowance; comparison anchors do not establish a proven hair-treatment dose.
Pathways0
The saved findings record no coverage of the four assessed pathways. Nutrient-related roles remain distinct from those pathways.
Depth
No contribution was recorded in the four assessed pathways; nutritional support can still have a separate role.
Breadth
None of the assessed pathways reaches the comparison's coverage threshold.
Evidence80
Vitamin B7 (Biotin) leads the saved evidence finding. The supplied ingredient context limits how directly that finding translates to routine hair growth.
Evidence strength
Vitamin B7 (Biotin) provides the leading evidence contribution here; its specific context limits the hair benefits that can be expected.
Studied preparation
The recognized preparations meet the saved comparison's preparation criteria; this does not establish broad hair-regrowth benefit.
Formulation logic100
The recognized ingredients need no missing partner, and no configured conflict was found. Amount checks remain comparison criteria rather than guarantees of benefit.
Partner coverage
No missing required partner reduces the recognized ingredients' contribution; this does not establish added benefit from combining them.
Conflicts
No conflict matched the configured checks; this is not a comprehensive safety assessment.
Effective doses
All ingredients counted for this check meet its amount threshold, which is not a proven clinical response threshold.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Vitamin A (Vitamin A Palmitate) | 750 mcg | |
Biotin | 5000 mcg | |
Cynatine HNS | 500 mg | |
Amino Acid Blend | 150 mg | |
Trans-Resveratrol (Japanese Knotweed root extract) | 20 mg |
Keratin · 500 mg OverallScore84
Resveratrol (Japanese Knotweed root extract) · 20 mg OverallScore73
Each serving provides 20 mg of trans-resveratrol. Based on the whole-product serving price, the equivalent cost is about $15.32 per 250 mg of trans-resveratrol.
How this ingredient is rated
Composition and Label Disclosure77
Trans-resveratrol is identified, but its concentration is not specified in the available facts.
Explicit Label Detail
Trans-resveratrol is specified.
Trans-Resveratrol Concentration Disclosure
The available facts do not specify trans-resveratrol concentration.
Composition and Label Disclosure100
The available facts give 20 mg of trans-resveratrol per serving.
Resveratrol Amount Disclosure
The available facts give 20 mg of trans-resveratrol per serving.
Commercial Price and Usability10
The equivalent cost is about $15.32 per 250 mg of trans-resveratrol, based on the whole-product serving price.
Cost per 250 mg Declared Trans-Resveratrol
The equivalent cost is about $15.32 per 250 mg of trans-resveratrol, based on the whole-product serving price.
Alternative products
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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.
- The Effects of an Oral Supplementation of a Natural Keratin Hydrolysate on Skin Aging: A Randomized, Double-Blind, Placebo-Controlled Clinical Study in Healthy Women.
- Halloysite/Keratin Nanocomposite for Human Hair Photoprotection Coating.
- Annurca Apple Nutraceutical Formulation Enhances Keratin Expression in a Human Model of Skin and Promotes Hair Growth and Tropism in a Randomized Clinical Trial.
- Keratin/alginate hybrid hydrogels filled with halloysite clay nanotubes for protective treatment of human hair.
- Patient Satisfaction and Adverse Effects Following the use of Topical Hair Fiber Fillers.
- Topical tretinoin for hair growth promotion.
- A review of isotretinoin in the treatment of frontal fibrosing alopecia.
- Efficacy of Isotretinoin and Acitretin in Treatment of Frontal Fibrosing Alopecia: Retrospective Analysis of 54 Cases.
- Systemic Treatments for Lichen Planopilaris and Frontal Fibrosing Alopecia: A Retrospective Study of 315 Patients.
- Tretinoin enhances minoxidil response in androgenetic alopecia patients by upregulating follicular sulfotransferase enzymes.
- 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.
- Comparative Analysis of Type I Keratin Expression By Nail Consistency: An Immunohistochemistry Study.
- Exposure to toxic agents alters organic elemental composition in human fingernails.