🟢 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

📸

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Label Data

2 Tablet(s) Serving Size
25 Servings
Other Combinations 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
200 mg
📊 Market median: 200.0mg (358 products) 📚 9 studies (Tier A: 0, B: 2)
This product: 200mg

Other Ingredients

Vegetable Cellulose Crospovidone Silica Stearic Acid Vegetable Magnesium Stearate Vegetable Glycerin

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 (18 - 50 Years) Women (not pregnant or lactating) Gluten Free Sugar Free

Product Information

📋 Directions for Use

Directions: For adults, take two (2) tablets daily, preferably with meals.

⚠️ Warnings & Precautions

Contains milk ingredients.

Warning: Not intended for use by pregnant or nursing women. If you are taking any medications or have any medical condition, consult your doctor before use.

Discontinue use and consult your doctor if any adverse reactions occur.

Not intended for use by persons under the age of 18. Keep out of reach of children.

Do not use if seal under cap is broken or missing.

🧪 Formulation Notes

200 mg of L-Theanine per serving

Supports a calm, relaxed mood Guaranteed quality Laboratory tested

Non-GMO, no artificial color, no artificial flavor, no artificial sweetener, no preservatives, no sugar, no starch, no soy, no gluten, no wheat, no yeast, no fish.

Suitable for vegetarians.

Ashwagandha KSM-66

Supports occasional anxiety & stress Clinically studied ingredients Herbal health

Made In The USA with select ingredients from around the world

Additional Information

Nearly 50 years of trusted quality At Nature’s Bounty, we are committed to your health. For nearly 50 years we have been making trusted products, backed by science, and made with only the purest ingredients...guaranteed. So you can get the most out of life every day.

Nutrition Questions or Comments? Call 1-800-433-2990 Mon. - Sat. 9 AM - 7 PM ET Sign up for News and Offers at NaturesBounty.com

Store at room temperature.

Product Details

UPC / SKU 0 74312 00491 9
DSLD Entry Date 2021-07-27
Product Type Other Combinations
Form Tablet or Pill
DSLD ID 253114
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 →

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