Extra Strength Hair Skin & Nails
Goals
$5.73 $0.57 per serving
Product analysis
Extra Strength Hair Skin & Nails mainly offers biotin and zinc for nutritional support, which may help when a shortage affects hair or nails. Its small collagen and hyaluronic acid amounts limit their likely contribution to skin firmness or hydration.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality50
The formula includes usable d-biotin, vitamin D3 and natural vitamin E, but several other forms are less clear. Missing forms for ingredients such as folate and collagen limit how confidently their quality can be judged.
Ingredient Transparency69
All listed amounts are disclosed, but several ingredient forms are missing. The unspecified collagen form makes it harder to compare it with preparations used for hair, skin or nails.
Value For Money38
Biotin and natural vitamin E provide the more favorable parts of the value picture. The small collagen amount is expensive for what it delivers, and several other nutrients are also costly relative to their amounts.
Customer Satisfaction71
Customer ratings are very positive, but they come from a relatively small review pool. They do not establish improvements in hair, skin or nails.
Product Focus32
The formula targets related hair, skin and nail needs with a wide mix of ingredients. Biotin and zinc provide the clearest nutritional connection, while adding more biotin does not establish better results when intake is adequate.
- Format
Softgel - Container
- 30 Softgel(s)
- Per serving
- $0.57
- Customer rating
- 4.7 · 69 ratings
Goals
Impact
High effect
Collagen · 50 mgBiotin · 5000 mcgHorsetail · 3 mg
Biotin provides the main nail-specific connection, with limited findings for brittleness and growth from small studies using 2500 mcg daily. The 5000 mcg per serving does not establish greater improvement. Zinc and iron can help with nail changes caused by their deficiencies, although the iron amount did not meet the saved inclusion threshold. The small collagen amount and unidentified preparation do not match the branded nail study.
How this product is rated for Nail Health
Ingredient fit55
Biotin provides the main connection to nail health. The amounts provide a mixed match to reference exposures; small or unresolved declarations limit the comparison.
Goal fit
Biotin provides the main nail connection, within a formula also aimed at other goals.
Dose adequacy
The amounts provide a mixed match to reference exposures; small or unresolved declarations limit the comparison.
Pathways70
The main connection is nutrients associated with nail formation, rather than proof of stronger or faster-growing nails. The connection is concentrated in one area of nail health.
Depth
The main connection is nutrients associated with nail formation, rather than proof of stronger or faster-growing nails.
Breadth
The connection is concentrated in one area of nail health.
Evidence100
Biotin has the leading nail-specific evidence connection, but small and often uncontrolled studies limit confidence.
Evidence strength
Biotin has the leading nail-specific evidence connection, but small and often uncontrolled studies limit confidence.
Studied preparation
The included preparations match the saved comparison, but this does not remove the limitations of the nail studies.
Formulation logic95
No missing required partner or configured conflict was identified. Vitamin E remains unresolved in the amount comparison.
Partner coverage
No missing required partner was identified; combining the ingredients does not establish an added nail benefit.
Conflicts
No configured ingredient conflict was identified in the supplied facts.
Effective doses
Vitamin E has no usable amount for the minimum exposure comparison; the remaining included ingredients meet that comparison.
Horsetail Not classified
No linked studies yet.
Impact
Moderate effect
Biotin · 5000 mcgVitamin D · 800 IUZinc · 7.5 mgIron · 3 mgVitamin C · 60 mgCollagen · 50 mg
Horsetail Not classified
No linked studies yet.
Impact
Moderate effect
Hyaluronic Acid · 30 mgZinc · 7.5 mgVitamin C · 60 mgCollagen · 50 mgSelenium · 12.5 mcgVitamin E · 15 IU
Zinc and B vitamins support normal skin nutrition, with biotin supplied at 5,000 mcg. Extra biotin has no established skin advantage when intake is already adequate. Collagen at 50 mg and hyaluronic acid at 30 mg are small compared with the skin-study exposures described in the supplied material, limiting their contribution to firmness or hydration.
How this product is rated for Skin Health
Ingredient fit50
The ingredient selection and declared amounts provide the skin-related fit described below.
Goal fit
Several ingredients relate to skin nutrition, alongside ingredients aimed at other health goals.
Dose adequacy
Several assessed amounts are small or unresolved relative to the saved comparison ranges.
Pathways0
The saved findings distinguish targeted skin mechanisms from general nutritional support.
Depth
No direct coverage was recorded for collagen structure, water binding, barrier lipids or light-related antioxidant defence.
Breadth
None of the assessed skin mechanisms reaches the saved threshold for substantial coverage.
Evidence83
The evidence depends on the specific ingredient, amount and preparation.
Evidence strength
Zinc provides the strongest evidence contribution in the saved assessment. Normal nutrient functions and preparation-specific findings should be distinguished from guaranteed cosmetic improvement.
Studied preparation
The saved assessment recognizes the forms of the ingredients meeting its amount threshold.
Formulation logic92
The saved findings cover ingredient partners, conflicts and the amounts that qualify.
Partner coverage
The assessed ingredients can contribute on their own or have their required partner present.
Conflicts
No ingredient conflicts were recorded in the saved assessment.
Effective doses
4 of 6 assessed ingredients meet the saved minimum amount threshold. Below it: Vitamin A, Vitamin E.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Calories | 15 Calorie(s) | |
Total Fat | 1 Gram(s) | |
Vitamin A (Retinyl Palmitate) | 5000 IU | |
Vitamin C (Ascorbic Acid) | 60 mg | |
Vitamin D (Cholecalciferol, Vitamin D3) | 800 IU | |
Vitamin E (D-Alpha-Tocopheryl Acetate) | 15 IU | |
Thiamine (Thiamine Mononitrate) | 5 mg | |
Riboflavin | 5 mg | |
Niacin (Niacinamide) | 25 mg | |
Vitamin B6 (Pyridoxine Hydrochloride) | 5 mg | |
Folic Acid | 200 mcg | |
Vitamin B12 (Cyanocobalamin) | 8 mcg | |
Biotin (D-Biotin) | 5000 mcg | |
Pantothenic Acid (D-Calcium Pantothenate) | 15 mg | |
Iron (Ferrous Gluconate) | 3 mg | |
Zinc (Zinc Gluconate) | 7.5 mg | |
Selenium (Selenium Yeast) | 12.5 mcg | |
Manganese (Manganese Gluconate) | 5 mg | |
Argan Oil | 25 mg | |
PABA | 10 mg | |
Choline Bitartrate | 10 mg | |
Alpha Lipoic Acid | 10 mg | |
Horsetail | 3 mg | |
hydrolyzed Collagen | 50 mg | |
Hyaluronic Acid (Sodium Hyaluronate) | 30 mg |
Biotin (D-Biotin) · 5000 mcg OverallScore89
Each serving provides 5000 mcg of biotin. The package cost also covers other vitamins and minerals. The label names D-biotin, the biologically active form. Artificial colors are listed.
How this ingredient is rated
Active Ingredient Quality & Bioavailability92
The label names D-biotin, the biologically active form. Artificial colors are listed.
Biologically Active d-Biotin Isomer
The label names D-biotin, the biologically active form.
Excipient Purity
Artificial colors are listed.
Dose, Safety & Label Transparency100
The label states 5000 mcg of biotin per serving.
Biotin Potency for Health Goals
A serving provides 5000 mcg of biotin.
Label Transparency & Exact Disclosure
The amount of biotin is clearly stated.
Value60
The package cost also covers other vitamins and minerals.
Price per 5,000 mcg Biotin
The package cost also covers other vitamins and minerals.
Niacin (Niacinamide) · 25 mg OverallScore65
Each serving provides 25 mg of niacin at a high cost per serving. The form is niacinamide. The available information does not establish a no-flush claim.
How this ingredient is rated
Active Ingredient Quality & Bioavailability86
The niacin includes niacinamide.
Niacin Form & Goal Alignment
The niacin includes niacinamide.
Precursor Source Quality
The named form is niacinamide.
Dose, Safety & Label Transparency67
The serving provides 25 mg of niacin. A no-flush claim is not established.
Clarity of Chemical Form
The label names niacinamide as the form.
Form-Specific Dosage Efficacy
The serving contains 25 mg of niacin.
Flush Risk & Safety Labeling
The available information does not establish a no-flush claim.
Value20
The cost per serving is high.
Price Per Effective Serving
The cost per serving is high.
Manganese (Manganese Gluconate) · 5 mg OverallScore82
Each serving provides 5 mg of manganese at a moderately high cost per serving. The amount falls within the stated range for bone and joint support. The manganese comes as manganese gluconate, an organic salt.
How this ingredient is rated
Active Ingredient Quality & Bioavailability80
The manganese comes as manganese gluconate, an organic salt.
Manganese Chemical Form
The manganese comes as manganese gluconate, an organic salt.
Dose, Safety & Label Transparency100
5 mg falls within the stated range for bone and joint support. The label states both the manganese amount and its source.
Manganese Dosage Efficacy & Safety
5 mg falls within the stated range for bone and joint support.
Elemental Weight Disclosure
The label states both the manganese amount and its source.
Value50
The cost per serving is moderately high.
Price per Serving vs. Median
The cost per serving is moderately high.
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.
- 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.
- Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
- Quantitative Analysis of Selected Circulating Hematological Biomarkers, Essential Minerals, Vitamins, and Thyroid Hormones in Females Affected by Hair Loss.
- Twelve weeks of protracted venous infusion of fluorouracil (5-FU) is as effective as 6 months of bolus 5-FU and folinic acid as adjuvant treatment in colorectal cancer.
- Role of oxaliplatin combined with 5-fluorouracil and folinic acid in the first- and second-line treatment of advanced colorectal cancer.
- Phase I-II study of vinorelbine in combination with 5-fluorouracil and folinic acid as first-line chemotherapy in metastatic breast cancer: a regimen with a low subjective toxic burden.
- Efficacy and safety of non-cross-linked hyaluronic acid compound in the treatment of keratosis pilaris: A split-body randomized clinical trial.
- Intradermal Injections of 10% Glucose (Sihler G) for Scalp Hair Regrowth: A Randomized, Evaluator-Blinded Pilot Study.
- Efficacy of Dr. SKS Hair Booster Serum in the Treatment of Female Pattern Alopecia in Patients With PCOS: An Open-Label, Non-randomized, Prospective Study.
- Efficacy and safety of needle-free jet injector-assisted intralesional treatments in dermatology-a systematic review.
- Revitalizing Effect on the Scalp After Injection with a Mechanically Stabilized Hyaluronic Acid Complex in Subjects with Androgenetic Alopecia.
- The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
- Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
- Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.