Rhodiola rosea is a hydro-ethanolic extract of an adaptogenic herb. The extract is standardized to rosavins and salidroside. People take it to support mental and physical stamina under stress, cut through fatigue, and speed up exercise recovery. Most take a single dose in the morning on an empty stomach because the herb can be stimulating.
Watch out if you have high blood pressure or bipolar disorder. Rhodiola can raise heart rate or blood pressure in some individuals. Pairing it with SSRIs or MAOIs may increase the risk of serotonin syndrome. Check with a professional.