🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 100% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

Have a supplement label? Find it here.

Upload a photo of any supplement label to search our database of 92,312 products.

Label Data

2 White Capsule(s) Serving Size
Botanical Product Type
100% Evidence Coverage

Supplement Facts — Evidence Check

📊 Market median: 450.0mg (502 products) 📚 28 studies (Tier A: 0, B: 8)
This product: 600mg

Other Ingredients

Vegetable Cellulose Capsule Cellulose Dicalcium Phosphate Magnesium Stearate Silicon Dioxide Chlorophyll Stearic Acid

Label Claims — Verification

All Other
Structure/Function
All Other (99% of products) Structure/Function (90% of products) Nutrient (7% of products)

Target Groups

Vegetarian Adult Male (18-50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take the contents of one pack daily with food.

⚠️ Warnings & Precautions

Keep out of reach of children.

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

Discontinue use two weeks prior to surgery.

🧪 Formulation Notes

No artificial colors, no artificial flavors, no artificial sweeteners, no wheat, gluten free, no soy, no dairy.

Vegetarian formula

Strength Features a clinically researched Ashwagandha extract shown to support increased strength and a healthy stress response.

Additional Information

Code 204011 AQG

Each pack contains:

Performance Fuel

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

{Capsule} Actual Size

Store in a cool, dry place.

When used in conjunction with a strength training regimen.

KSM-66(R) ashwagandha

GNC quality commitment For more than 79 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.

NEW!

Provides performance, strength, antioxidant and liver support

Gf GLUTEN FREE

V VEGETARIAN FORMULA

NON GMO

CLINICALLY RESEARCHED

Product Details

DSLD Entry Date 2015-08-25
Product Type Botanical
Form Capsule
Bundle Ultra Mega Green Men's Sport
DSLD ID 49202
Data Updated 2026-04-11

Research Evidence

63 Research Sources
54 Avg Quality Score
26 Systematic Review
21 Rct
11 Meta Analysis
5 Clinical Trial
B Identifying immunostimulatory herbal supplements that may flare autoimmune skin diseases: a systematic scoping review
Systematic Review Lupus science & medicine 2025
B Effects of Ashwagandha (Withania somnifera) on VO2max: A Systematic Review and Meta-Analysis
Meta Analysis Nutrients 2020
B Does Ashwagandha supplementation have a beneficial effect on the management of anxiety and stress? A systematic review and meta-analysis of randomized controlled trials
Meta Analysis Phytotherapy research : PTR 2022
B An update on the efficacy of anti-inflammatory agents for patients with schizophrenia: a meta-analysis
Meta Analysis Psychological medicine 2019
B Safety and efficacy of Withania somnifera for anxiety and insomnia: Systematic review and meta-analysis
Meta Analysis Human psychopharmacology 2024
B Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis
Meta Analysis PloS one 2021
B Plant-derived nootropics and human cognition: A systematic review
Systematic Review Critical reviews in food science and nutrition 2023
B Effects of Ashwagandha (Withania Somnifera) on stress and anxiety: A systematic review and meta-analysis
Meta Analysis Explore (New York, N.Y.) 2024
B Systematic review and network meta-analysis of the effects of plant active substance on quality of life in breast cancer patients
Systematic Review Frontiers in pharmacology 2025
B Clinical evidence for the adaptogenic effects of Withania somnifera and Rhodiola rosea - A systematic review with molecular interpretation of psychometric outcomes
Systematic Review Annals of agricultural and environmental medicine : AAEM 2026
View all evidence for Ashwagandha →

Compare Similar Products

View all Ashwagandha products →