
KSM-66 Ashwagandha
Withania somnifera
The root of Withania somnifera, as KSM-66 organic root extract by day and whole root powder at night.
How it works. Ashwagandha is the textbook adaptogen. Central to that story is cortisol, the hormone your body releases under pressure, useful in short bursts and best kept in a healthy rhythm. Research on the root has focused on how it supports that rhythm, which is why its effect is often described as a lower idle rather than a switch turning off.†
What the research looks at. KSM-66 is among the most widely studied ashwagandha root extracts available. Randomized, placebo controlled trials have studied its effects on perceived everyday stress, cortisol, and sleep quality. That breadth is why ashwagandha earns a place in both Soultrum formulas, as a concentrated extract by day and as gentler whole root powder at night.
Where it comes from. Ashwagandha has long been a cornerstone of Ayurveda, India’s traditional system of herbal practice, with a written record that runs back roughly two thousand years. It was classically taken as a tonic for strength and vitality, and its Sanskrit name translates roughly to smell of the horse, a nod to the robust energy it was thought to impart.
In the formula. By day it sets the steady baseline that rhodiola builds on, and by night it works alongside L-Theanine and chamomile to ease the handoff from a full mind to an unwinding one.
Steady, not sedated. Taken consistently, it may help hard days feel more workable and the wind down at night come a little easier.†








