The Science Behind Ashwagandha

Piperine is a compound found in black pepper. In research it has been studied for its effect on the bioavailability — the absorption — of various compounds, with reported increases across a range of substances. APACHE STAR® Ashwagandha includes 5 mg of organic black pepper per capsule alongside the ashwagandha root.

A review pooled five studies that compared ashwagandha with a placebo using validated anxiety and stress scales. Across these studies, researchers reported greater score improvements in the ashwagandha groups than in the placebo groups.

A 2020 study examined ashwagandha root extract and sleep-quality measures. Researchers reported improvements in sleep-quality scores and noted that participants tolerated the extract well across age groups.

Over a 30-day period, a study assessed physiological, cognitive, and psychological stress-response measures in participants taking an ashwagandha supplement, comparing them against baseline.

An eight-week study gave overweight men aged 40–70 with mild fatigue either a placebo or an ashwagandha extract, and compared the measured outcomes between the two groups.

A small pilot study investigated ashwagandha supplementation in a group of male participants and recorded changes in the measured parameters.