Hair, Skin & Nails Formula
GNC's Hair, Skin & Nails Formula is a botanical and nutrient blend featuring vitamins A, C, E, biotin, and folic acid. This supplement provides a range of vitamins and minerals. It has an N+ Score of 75.
About This Product
Hair, Skin & Nails Formula by GNC is a collagen & beauty supplement containing 24 active ingredients. It has earned an N+ Score of 75/100 (Grade C+).
This product features a fully transparent label with individual ingredient amounts disclosed, and key ingredients are present at clinically effective doses based on peer-reviewed research.
Notable clinical-dose ingredients include Thiamine, Riboflavin, Niacin and 9 more.
N+ Score Breakdown
Are key ingredients present at clinically effective doses based on research?
Does the product include all expected ingredients for its supplement category?
Are individual ingredient amounts clearly disclosed without proprietary blends?
Does the formula include a breadth of beneficial compounds from multiple pathways?
Strengths
- +Key ingredients at clinically effective doses
- +Fully transparent label with individual ingredient amounts disclosed
- +Broad ingredient diversity exceeding category norms
- +12 ingredient(s) at clinical dose levels
- +Rich formula with 24 active ingredients
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (24 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Thiamine | 1.500 mg | Optimal |
| Riboflavin | 1.700 mg | Optimal |
| Niacin | 20.000 mg | Optimal |
| Biotin | 3000.000 mcg | Optimal |
| Pantothenic Acid | 13.500 mg | Optimal |
| Vitamin A | 5000.000 IU | High |
| Vitamin C | 120.000 mg | Adequate |
| Vitamin D | 200.000 IU | Under |
| Vitamin E | 30.000 IU | Optimal |
| Calcium | 200.000 mg | Adequate |
| Zinc | 15.000 mg | Optimal |
| Boron | 1.000 mg | N/A |
| Folic Acid | 200.000 mcg | Adequate |
| Alpha Lipoic Acid | 10.000 mg | N/A |
| DMAE | 10.000 mg | N/A |
| Phosphorus | 100.000 mg | Under |
| Lutein | 500.000 mcg | N/A |
| Green Tea leaf extract | 10.000 mg | N/A |
| Pantethine | 1500.000 mcg | Optimal |
| L-Methionine | 50.000 mg | N/A |
| L-Cysteine | 200.000 mg | N/A |
| MSM | 100.000 mg | N/A |
| Horsetail | 3.000 mg | N/A |
| hydrolyzed Gelatin | 100.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.