Typical dose

300-600 mg daily, often taken in divided doses (...

Oral Oral safety: very low

About this supplement

KSM-66 Ashwagandha is a proprietary, full-spectrum root extract of Withania somnifera, standardized to contain a minimum of 5% withanolide glycosides. It is produced using a unique, solvent-free, aqueous extraction process that preserves the full profile of bioactive compounds from the root, including withanolides, alkaloids, and sitoindosides. KSM-66 is specifically noted for its high concentration of root-only constituents, avoiding leaf material, and is clinically researched for its adaptogenic properties, supporting stress response, cognitive function, and physical performance.

How much to take

Typical amount
300-600 mg daily, often taken in divided doses (e.g., 300 mg twice daily).
Suggested range
300-600 mg daily

Potential benefits

Benefits linked to this supplement form:

Things to watch for

Possible side effects linked to this form:

Health goals

Needs and goals this form may help with:

Other forms of Ashwagandha

Compare absorption and active amounts with sibling forms:

Technical details â–¼

Chemical ID (CAS)

90147-49-6

Physical properties

Typically a fine, tan to brown powder. Soluble in water due to its aqueous extraction process. Hygroscopic; should be stored in a cool, dry place.

How it’s made

Produced via a proprietary, green chemistry process using only water and milk (as a solvent for certain bioactive components), without using alcohol or synthetic solvents. The process involves extracting solely from the roots of Withania somnifera, followed by concentration and drying to yield a full-spectrum extract standardized for withanolide glycoside content.