Product analysis
Biotin may help with brittle nails, although the evidence is limited. Hair benefits are most relevant when low biotin intake contributes to shedding, with little evidence of extra benefit when intake is adequate.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality80
The biotin is supplied in the biologically active D-biotin form, which the body can use. Calcium form quality remains uncertain.
Ingredient Transparency100
Both nutrient amounts and forms are clearly disclosed. That helps you compare the serving with other supplements.
Value For Money80
The biotin amount compares favorably on cost. Calcium’s value remains uncertain, so the clearest value is for someone specifically seeking biotin.
Customer Satisfaction87
Customers report strongly positive satisfaction across many ratings. Feedback supports a broad picture of customer approval, rather than proof of hair or nail benefits.
Product Focus71
The formula is centered on biotin, with limited support for brittle nails. Hair and skin benefits depend more on correcting inadequate intake than on taking extra biotin.
- Format
Capsule - Container
- 100 Veggie Cap(s)
- Per serving
- $0.09
- Customer rating
- 4.7 · 3,377 ratings
Goals
Impact
Highest effect
Biotin · 5000 mcg
Biotin has limited evidence for improving brittle nails and nail growth, based largely on small studies with weak controls. The 5000 mcg per serving reaches the reviewed amount comparison, but higher amounts have not shown additional nail benefit. A serving does not establish the sustained daily regimen used in those studies.
How this product is rated for Nail Health
Ingredient fit96
Biotin is the main nail-related ingredient and reaches the reviewed amount comparison.
Goal fit
The assessed ingredients are focused on nail-related roles.
Dose adequacy
Biotin reaches the full reviewed amount comparison; larger amounts do not establish additional nail benefit.
Pathways70
Keratinization cofactors are the only substantially represented area in the saved findings.
Depth
Keratinization cofactors are the only substantially represented area in the saved findings.
Breadth
One nail-related area reaches substantial representation; broader coverage is limited.
Evidence100
Biotin leads the saved evidence comparison, but the small studies do not establish robust routine efficacy.
Evidence strength
Biotin leads the saved evidence comparison, but the small studies do not establish robust routine efficacy.
Studied preparation
The amount-qualified ingredients meet the saved preparation comparison, without establishing stronger clinical evidence.
Formulation logic100
The amount-qualified ingredients require no missing partner, and no configured conflict was identified.
Partner coverage
The assessed ingredients work alone or have their required partner.
Conflicts
No configured ingredient conflict was identified.
Effective doses
All ingredients included in this amount check meet the saved minimum comparison; ingredients excluded for low amounts remain excluded.
Impact
High effect
Biotin · 5000 mcg
Biotin can help when deficiency contributes to diffuse shedding, while evidence in people with adequate intake is very limited. The 5000 mcg per serving reaches the upper comparison range, but higher biotin intake does not establish additional regrowth. Its role in the saved finding is nutrient sufficiency rather than a direct effect on androgen signalling, follicle protection or hair-fibre structure.
How this product is rated for Hair Health
Ingredient fit82
Hair-related ingredients contribute through nutrient or ingredient roles, with the amounts and limitations described below. The wider formula affects how focused that connection is.
Goal fit
Hair-related ingredients share this formula with other actives, giving it a broader focus than hair alone.
Dose adequacy
The counted ingredients reach their upper reference amounts per serving, without establishing greater benefit from higher intake.
Pathways0
The recorded connection concerns nutrient sufficiency rather than the evaluated androgen, structural, antioxidant or stress-related routes.
Depth
The recorded nutrient-sufficiency contribution does not cover the evaluated androgen, hair-fibre, antioxidant or stress-related routes.
Breadth
None of the evaluated hair-related routes has substantial recorded coverage; nutrient sufficiency is treated separately.
Evidence80
Vitamin B7 (Biotin) leads the recorded evidence finding; its specific outcome and population limits still determine what benefits can be described.
Evidence strength
Vitamin B7 (Biotin) leads the recorded evidence finding; its specific outcome and population limits still determine what benefits can be described.
Studied preparation
The counted ingredients receive preparation recognition in the saved finding; that does not establish hair-regrowth efficacy for every listed form.
Formulation logic100
The counted ingredients have no missing required partners or identified conflicts among those evaluated. Their amounts meet the minimum comparison.
Partner coverage
The counted ingredients have no missing required partners.
Conflicts
None of the evaluated ingredient conflicts was identified; this is not a complete interaction or safety assessment.
Effective doses
All counted ingredients meet the minimum amount comparison; this does not establish a proven effective hair-growth dose.
Impact
Moderate effect
Biotin supports a nutritional need whose deficiency can cause dermatitis, but deficiency is rare. The 5,000 mcg serving is far above the adult adequate intake of 30 mcg, without established added skin benefits for adults who already have enough.
How this product is rated for Skin Health
Ingredient fit82
The ingredients have a connection to skin support, with amount comparisons kept separate from expected cosmetic results.
Goal fit
The skin-related ingredients are part of a formula with broader purposes, giving a partial specific match to skin support.
Dose adequacy
The assessed amount fully meets the saved exposure comparison; higher amounts do not imply added skin benefit.
Pathways0
The saved assessment finds no substantive coverage of the specified skin mechanisms.
Depth
The saved assessment finds no substantive coverage of the specified skin mechanisms.
Breadth
None of the specified skin mechanisms reaches the saved coverage threshold.
Evidence54
The saved evidence finding reflects the assessed ingredients, with benefits limited by nutritional status or preparation-specific research.
Evidence strength
Biotin leads the saved evidence comparison among ingredients meeting the amount criterion. Nutritional roles or limited trial findings do not establish universal cosmetic benefit.
Studied preparation
The assessed ingredients meeting the amount criterion match the saved preparation criteria.
Formulation logic100
The saved assessment flags no missing required partners or ingredient conflicts, while the amount comparison remains ingredient-specific.
Partner coverage
The assessed ingredients can stand alone or have the partners required by the saved assessment.
Conflicts
No configured ingredient conflicts were flagged.
Effective doses
1 of 1 assessed ingredients meet the saved minimum amount criterion. That criterion does not establish a cosmetic benefit.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Biotin (D-Biotin) | 5000 mcg | |
Calcium (Dicalcium Phosphate) | 145 mg |
Biotin (D-Biotin) · 5000 mcg OverallScore100
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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.
- 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.
- Predictive Model of Nail Consistency Using Scanning Electron Microscopy with Energy-Dispersive X-Ray.
- 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.
- Generalized seborrhoeic dermatitis. Clinical and therapeutic data of 25 patients.
- Holocarboxylase synthetase deficiency: novel clinical and molecular findings.