In the world of sports nutrition and active health, only a few natural ingredients can claim both ancient roots and modern clinical credibility. KSM-66 Ashwagandha does just that. This root-only, clinically studied, and safe extract is a powerhouse for athletes looking to boost strength, grow muscle, and dominate training plateaus.
Let’s talk about results.
In an 8-week clinical trial, participants supplementing with KSM-66 (300 mg twice daily) experienced massive gains in muscle strength—up to 23.5% in bench press for males and 22.8% for females. Leg extension strength climbed by 15% and 9.9%, respectively1. These are not just incremental changes—they’re game-changing leaps in performance.
In a 4-week study, KSM-66 Ashwagandha supplementation (600 mg a day) resulted in a significant 11.71% improvement in handgrip strength (p<0.05), a 9.35% increase in medicine ball throw performance, and an 8.56% increase in countermovement jump height, respectively2.
Another study reported that athletes using KSM-66 reported a staggering >75% increase in bench press strength and a 52% improvement in leg extension strength over eight weeks3.
Muscle size? KSM-66 has you covered there as well.
In an 8-week study, KSM-66 supplementation increased arm size by 5.2%, along with increases in thigh and chest size by 3.5% and 4.1%, respectively1. In another clinical trial, KSM-66 supplementation demonstrated a 17.1% increase in arm size and 8.1% in thigh size3.
So what makes KSM-66 the gold standard?
KSM-66 Ashwagandha is a root-only extract, extracted via green chemistry, thus staying true to Ayurvedic tradition. KSM-66 is a full-spectrum extract that retains the natural balance of active compounds. The result? Purity, potency, and performance in one clean label.
Formulators love that KSM-66 has a neutral taste and excellent solubility, ideal for blending into protein powders, pre-workouts, and muscle-gain formulas without compromising flavor or texture. From pro athletes to fitness enthusiasts, more and more consumers are looking for clinically proven, natural ingredients that actually deliver. KSM-66 is backed by over 50 published studies, including several gold-standard trials, and supported by leading sports influencers.
Add it to your next strength or muscle formula. The science is strong. The gains are real.
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