Our rhodiola tincture is “standardized by input,” which is to say that there are 250 mg of authentic rhodiola in every ml of the tincture, which is made to a 1:4 ratio. This means that we can guarantee that the tincture contains rosavins, but we cannot guarantee a minimum concentration or level of them. The rhodiola in our Strest Capsules and Fémance Menopause Capsules, on the other hand, is standardized to 3.6% rosavins, rosavins being the marker compounds that are most unique to authentic, medicinal rhodiola. We are often asked by customers to compare the potency of our rhodiola (as well as other herbs that are apt to occur in standardized format, such as St. John’s wort and black cohosh, for example) with standardized versions of this herb produced by other manufacturers. Unfortunately, these kinds of comparisons can be complicated and need to be made on a case by case basis, as they are very much contingent on the product’s brand name, its extract ratio, and which constituents it is standardized to. Please get in touch if you’d like more information.
Get special offers, exclusive promotions, and health information sent directly to your inbox.