Ursolic acid is a triterpenoid compound found naturally in apple peels, rosemary, holy basil, and peppermint. This secondary plant compound is studied for its effects on cellular health and metabolism, though it provides no vitamin or mineral activity.
Human and animal research points to two areas of interest. The first is muscle health and muscle protein synthesis, which may help maintain or build lean mass. The second involves supporting aspects of metabolic health such as blood sugar and lipid levels that are already in a normal range. A separate topical form is also used in skin care products.
Capsules and powders are the common oral formats. The compound absorbs poorly in water, so taking it with food that contains some fat is a standard approach to improve uptake. Human studies typically use daily doses between 50 and 150 mg. Optimal dosing depends on the specific form and personal goals.
Be cautious if you take medication for diabetes or high blood pressure. Ursolic acid might lower blood sugar and blood pressure, which could amplify the effects of those drugs and raise the risk of hypoglycemia or hypotension. Safety during pregnancy and breastfeeding has not been established.