Double Wood Supplement’s Rhodiola Rosea Extract consists of 3% Salidrosides and 1% Rosavins. Contrary to popular belief, the active ingredient in Rhodiola is the Salidroside. Rosavins have no effect. We are sure you will feel the difference in our supplement when compared to 3% Rosavin products which contain little to no Salidrosides. Our Rhodiola Extract is Organic, Natural, Vegan, Gluten-Free and Non-GMO. There are 120 Capsules and each capsule contains 500mg of our complex. It is made and tested right here in the USA in New York. Rhodiola rosea is a herb which has traditional usage as an energy support agent and adaptogen compound. It supports physical / mental energy levels, promotes longevity, and may have a calming effect