Staminol Ultra
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.
About This Product
Staminol Ultra by GNC is a herbal & botanical supplement containing 17 active ingredients. It has earned an N+ Score of 100/100 (Grade A+).
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 6 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
- +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 | Dose Adequacy |
|---|---|---|
| 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 | High |
| 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.