Jarrow Rhodiola Rosea Russian Root (500mg, 60 Capsules). Though there are greater than 20 species of rhodiola, only authentic Rhodiola rosea contains the three active rosavin compounds: rosavin, rosin, and rosarin. Jarrow FORMULAS® Rhodiola extract is standardised to contain a minimum of 5% rosavins, the highest potency available. >>>>> BUY NOW <<<<< 500mg, 60 Capsules Contains the three active rosavin compounds >>>>> BUY NOW <<<<<