🟢 90/100

This product looks safe

  • Contains proprietary blend — exact ingredient amounts not disclosed
  • 9% of ingredients have research evidence
B Label Compliance Grade

Product Label

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Safety Alerts

ℹ️ Contains proprietary blend — exact ingredient amounts not disclosed

Label Data

2 Brown Filled Capsule(s) Serving Size
Other Combinations Product Type
9% Evidence Coverage

Supplement Facts — Evidence Check

Proprietary Blend
200 mg
Kola Nut
175 mg
Oat Straw
150 mg
GABA
100 mg
Nettle
100 mg
Yohimbe bark extract
60 mg
Horny Goat Weed
20 mg
Catuaba
10 mg
Muira
10 mg
Damiana
10 mg
10 mg
📊 Market median: 320.0mg (426 products) 📚 24 studies (Tier A: 0, B: 5)
This product: 10mg

Other Ingredients

Gelatin Dicalcium Phosphate

Label Claims — Verification

All Other
Structure/Function
All Other (98% of products) Structure/Function (83% of products) Nutrient (17% of products)

Target Groups

Adult (18 - 50 Years) Dairy Free

Product Information

📋 Directions for Use

DIRECTIONS: As a dietary supplement, take the contents of one pack daily with food. Do not exceed one pack daily.

Discontinue use two weeks prior to surgery.

To ensure a complete nutritional program, take daily with these GNC products: ~ GNC Protein ~ Ultra Probiotic Complex 25 ~ CoQ-10 ~ SuperFoods Whole Foods Blend

⚠️ Warnings & Precautions

WARNING: Consult your physician prior to using this product if you are pregnant, nursing, taking medication, or have a medical condition.

KEEP OUT OF REACH OF CHILDREN.

🧪 Formulation Notes

Each pack contains:

No Artificial Colors, No Wheat, No Dairy, Yeast Free.

Additional Information

CODE 330112 JOG

Compared to leading brands

GNC QUALITY COMMITMENT For more than 77 years, GNC has been the leader in the development of superior nutritional supplements. Our products are produced using only fresh, high-quality ingredients and are manufactured under the strictest quality controls.

GNC GUARANTEE If you are not 100% completely satisfied, return the unused portion of the product with your receipt to a GNC store within 30 days. Our trained sales staff will either refund your purchase price or, if you prefer, assist you in finding a replacement product to help you LIVE WELL.

Store in a cool, dry place.

PHYSICIAN ENDORSED

Performance

Conforms to USP <2091> for weight. Meets USP<2040> disintegration.

{ACTUAL SIZE}

Staminol

Product Details

DSLD Entry Date 2014-05-23
Product Type Other Combinations
Form Capsule
Brand GNC Mega Men
Bundle Performance & Vitality
DSLD ID 33552
Data Updated 2026-04-11

Research Evidence

35 Research Sources
52 Avg Quality Score
15 Meta Analysis
11 Systematic Review
7 Rct
1 Narrative Review
1 Openfda Safety
B Serenoa repens for benign prostatic hyperplasia
Meta Analysis The Cochrane database of systematic reviews 2009
B Serenoa repens for benign prostatic hyperplasia
Meta Analysis The Cochrane database of systematic reviews 2012
B Serenoa repens for the treatment of lower urinary tract symptoms due to benign prostatic enlargement: A systematic review and meta-analysis
Meta Analysis Investigative and clinical urology 2021
B Clinical Efficacy of Serenoa repens Versus Placebo Versus Alpha-blockers for the Treatment of Lower Urinary Tract Symptoms/Benign Prostatic Enlargement: A Systematic Review and Network Meta-analysis of Randomized Placebo-controlled Clinical Trials
Systematic Review European urology focus 2021
B Non-hormonal treatment for male infertility: the potential role of Serenoa repens, selenium and lycopene
Systematic Review European review for medical and pharmacological sciences 2019
B Comparison of Serenoa repens With Tamsulosin in the Treatment of Benign Prostatic Hyperplasia: A Systematic Review and Meta-Analysis
Meta Analysis American journal of men's health 2020
B Serenoa repens monotherapy for benign prostatic hyperplasia (BPH): an updated Cochrane systematic review
Systematic Review BJU international 2012
B Effects of dietary supplements on androgenetic alopecia: a systematic review and network meta-analysis
Systematic Review Frontiers in nutrition 2025
C Benign prostate hyperplasia and nutrition
Systematic Review Clinical nutrition ESPEN 2019
C American palm ethnomedicine: a meta-analysis
Meta Analysis Journal of ethnobiology and ethnomedicine 2009
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