N+ Score
A+
100
Adequacy
35%
100
Completeness
25%
100
Transparency
20%
100
Diversity
20%
100
About This Product
Staminol Ultra by GNC is a botanical and nutrient blend featuring Vitamin E, Thiamine, Niacin, L-Arginine, and Testofen Fenugreek seed extract. This supplement has an N+ Score of 100, indicating an excellent formulation. It provides a range of vitamins and botanical extracts.
Strengths
- +Key ingredients at clinically effective doses
- +Comprehensive formula with expected ingredients for its category
- +Fully transparent label with individual ingredient amounts disclosed
- +Broad ingredient diversity exceeding category norms
- +9 ingredient(s) at clinical dose levels
- +Rich formula with 17 active ingredients
Weaknesses
- −No major weaknesses identified
Ingredient Analysis (17 ingredients)
| Ingredient | Amount | Status |
|---|---|---|
| Thiamine | 2.000 mg | Optimal |
| Riboflavin | 2.000 mg | Optimal |
| Niacin | 25.000 mg | Optimal |
| Vitamin B12 | 8.000 mcg | Optimal |
| Vitamin E | 16.000 mg | Optimal |
| Zinc | 17.000 mg | Optimal |
| Selenium | 75.000 mcg | Optimal |
| Folic Acid | 1000.000 mcg DFE | Optimal |
| L-Arginine | 1000.000 mg | N/A |
| Asian Ginseng Root Extract | 55.000 mg | N/A |
| Yohimbe Bark Extract | 50.000 mg | N/A |
| Ginkgo biloba leaf extract | 25.000 mg | N/A |
| Maca powder | 100.000 mg | N/A |
| Horny Goat Weed Extract | 50.000 mg | N/A |
| Hawthorn Berry Extract | 25.000 mg | N/A |
| Testofen Fenugreek seed extract | 600.000 mg | N/A |
| MegaNatural-BP Grape seed extract | 300.000 mg | N/A |
Clinical ranges based on NIH ODS Fact Sheets and peer-reviewed research. Status indicates whether the amount meets evidence-based thresholds.