Natural Factors - Stress-Relax® KSM-66 Ashwagandha® 600 mg - 60 VCaps

The Gold Standard of Ashwagandha — Clinically Proven Stress Relief, Energy & Vitality

In a world full of ashwagandha supplements, not all are created equal — and Natural Factors Stress-Relax® KSM-66® Ashwagandha 600mg stands in a class of its own. KSM-66® is the world's most clinically studied, most bioavailable, and most awarded full-spectrum ashwagandha root extract — backed by over 24 gold-standard, double-blind, placebo-controlled clinical trials demonstrating its remarkable ability to reduce stress and anxiety, restore energy and vitality, support cognitive performance, and enhance physical endurance. At a full 600mg per capsule and 60 vegetarian capsules per bottle, this is two months of the most trusted adaptogenic stress support available — no compromises, no shortcuts.

Why Natural Factors Stress-Relax® KSM-66® Ashwagandha 600mg?

• KSM-66® — The World's Most Clinically Studied Ashwagandha: KSM-66® is a patented, full-spectrum ashwagandha root extract produced using a unique, proprietary extraction process that preserves the complete spectrum of naturally occurring withanolides and bioactive compounds — backed by over 24 peer-reviewed clinical trials and more certifications than any other ashwagandha extract on the market.
• Clinically Proven Stress & Anxiety Reduction: Multiple double-blind, placebo-controlled studies demonstrate that KSM-66® significantly reduces perceived stress scores, lowers cortisol levels, and eases anxiety — helping the body adapt to physical and mental stressors with greater resilience and calm.
• Lowers Cortisol — The Stress Hormone: KSM-66® has been clinically shown to significantly reduce serum cortisol levels — the body's primary stress hormone — addressing stress at its hormonal root rather than simply masking symptoms.
• Restores Energy, Stamina & Vitality: Unlike stimulants that provide a temporary energy spike followed by a crash, KSM-66® supports sustained, natural energy by reducing the cortisol-driven fatigue that drains vitality — leaving you feeling genuinely energized, focused, and resilient throughout the day.
• Supports Cognitive Function & Mental Clarity: Clinical studies demonstrate KSM-66® improves memory, attention, processing speed, and overall cognitive performance — supporting the mental sharpness and clarity that stress and fatigue so often erode.
• Supports Healthy Testosterone & Male Vitality: Clinical research shows KSM-66® supports healthy testosterone levels, sperm quality, and male reproductive health — making it a powerful adaptogen for men's overall vitality and hormonal wellness.
• Supports Physical Performance & Recovery: KSM-66® has been shown to improve muscular strength, endurance, and post-workout recovery — making it an ideal adaptogen for athletes and active individuals seeking both physical and mental performance support.
• Supports Restful Sleep: By reducing cortisol and calming the nervous system, KSM-66® supports deeper, more restorative sleep — addressing the sleep disruption that chronic stress so commonly causes.
• Full-Spectrum Root Extract — No Leaves: KSM-66® is made exclusively from ashwagandha root — the part of the plant used in traditional Ayurvedic medicine for thousands of years — without the use of leaves, ensuring the most authentic and potent adaptogenic profile.
• 60 VCaps — Two-Month Supply: A generous two-month supply at the full 600mg clinically studied daily dose — ideal for consistent, long-term adaptogenic stress and vitality support.
• Natural Factors Stress-Relax® Quality: Part of Natural Factors' trusted Stress-Relax® line — a collection of science-backed formulas specifically designed to support stress resilience, emotional balance, and mental well-being naturally and effectively.

Key Benefits

• Clinically proven stress & anxiety reduction with KSM-66®
• Lowers cortisol for hormonal stress relief at the source
• Restores sustained energy, stamina & mental clarity
• Supports testosterone, physical performance & recovery
• Two-month supply at the full 600mg clinically studied dose

Suggested Use

Take one capsule daily with a meal, or as directed by your healthcare provider. For best results, use consistently for a minimum of 8 weeks as part of a balanced lifestyle that includes regular physical activity, adequate sleep, and stress management practices. Consult your healthcare provider before use if you are pregnant, nursing, taking thyroid medications or other medications, or have a medical condition.

60 Vegetarian Capsules | KSM-66® Ashwagandha 600mg | Stress, Energy & Vitality Support | Stress-Relax® | Natural Factors