Which Rhodiola Rosea Is Best?

What kind of rhodiola should I take?

It's best to take rhodiola on an empty stomach but not before bedtime, as it has a slightly stimulating effect (27). Most people take rhodiola extract in capsules or tablets containing between 100 to 200 mg with 3 percent rosavins and 0.8–1 percent salidroside.

What is the difference between Rhodiola rosea and Rhodiola crenulata?

This difference is especially apparent between the two main species of the plant. Rhodiola rosea tends to have higher rosavin, while Rhodiola crenulata has higher salidroside. Generally, rhodiola extracts are standardised to 3% rosavins and 0.8–1.0% salidrosides by weight.