Ultra Nourish-Hair by GNC is a hair support supplement in the Protein category, formulated with 21 ingredients. This product provides several vitamins at clinically studied dosages, including Vitamin A (1000IU), Vitamin C (60mg), Vitamin E (30IU), Thiamine (1.5mg), and Riboflavin (1.7mg), which research suggests may support overall health and potentially hair vitality. However, Iodine and Magnesium are identified as underdosed. With an N+ Score of 76 and a C+ grade, this supplement is considered 'good' for individuals seeking a multi-nutrient approach to hair nourishment, offering transparent ingredient labeling.
About This Product
Ultra Nourish-Hair by GNC is a protein supplement containing 21 active ingredients. It has earned an N+ Score of 76/100 (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 11 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
- +14 ingredient(s) at clinical dose levels
- +Rich formula with 21 active ingredients
Weaknesses
- −Missing several expected ingredients for its category
Ingredient Analysis (21 ingredients)
| Ingredient | Amount | Dose Adequacy |
|---|---|---|
| Thiamine | 1.500 mg | Optimal |
| Riboflavin | 1.700 mg | Optimal |
| Niacin | 20.000 mg | Optimal |
| Vitamin B6 | 4.000 mg | Optimal |
| Vitamin B12 | 6.000 mcg | Optimal |
| Biotin | 1200.000 mcg | Optimal |
| Pantothenic Acid | 20.000 mg | Optimal |
| Choline | 250.000 mcg | Adequate |
| Vitamin A | 1000.000 IU | Optimal |
| Vitamin C | 60.000 mg | Adequate |
| Vitamin E | 30.000 IU | Optimal |
| Iodine | 50.000 mcg | Under |
| Magnesium | 40.000 mg | Under |
| Zinc | 30.000 mg | Optimal |
| Copper | 2.000 mg | Optimal |
| Boron | 3.000 mg | N/A |
| Folic Acid | 200.000 mcg | Adequate |
| Inositol | 50.000 mcg | N/A |
| MSM | 500.000 mg | N/A |
| Silica | 1.000 mg | N/A |
| Proprietary Amino Acid Complex | 800.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.





