Ketosterone Standardization & Grades
Ketosterones is a trade term for the keto-sterol and keto-triterpenoid fraction of the Cissus stem, a group of lipophilic compounds that is quantified as one class figure by HPLC against a reference. The term is not a pharmacopoeial name, and its exact composition depends on the method used, which is why the data table notes that the figure varies with the method. The botanical entity is Cissus quadrangularis L., and the extract is standardized to this fraction because it is the signature lipophilic class of the stem.
| Grade | Assay & Method | Where It Fits |
|---|---|---|
| 10% Ketosterones | HPLC | Dry blends, higher inclusion rates |
| 40% Ketosterones | HPLC | Capsules and tablets, small fill weight |
Grade choice follows dose and fill weight. The 40% grade carries four times the marker load of the 10% grade per gram, so a capsule reaches its target with less powder, while the 10% grade is bulkier and behaves more like a milled stem. Cissus is also supplied as a 10:1 ratio extract with no marker figure, the Cissus Quadrangularis Extract Powder. Use the standardized extract when a ketosterone figure has to appear in the specification of a Cissus quadrangularis extract.












