Why is standardization important for Rhodiola?
The genus Rhodiola contains many species. Upon investigation, it was discovered that the Rhodiola rosea species is quite different from its relatives in the Rhodiola genus. 94% of all human studies were performed using the Rhodiola rosea species. Rhodiola rosea extract is identified by its Rosavins content and standardized to contain 3% rosavins and 0.8-1% salidroside. Rhodiola standardized at 45% polyphenols is likely not the same Rhodiola used in the studies.
