Ingredient Profile · Botanical
Horny Goat Weed
Its icariin content is studied for supporting healthy blood flow.
Mechanism
Horny Goat Weed's active compound, icariin, is studied for mild PDE-5 inhibiting activity — a mechanism relevant to smooth blood flow to tissue, working alongside L-Arginine's nitric-oxide effect from a different angle.
What the evidence shows
Icariin's mechanism is well documented in laboratory research; human clinical trials on the whole herb for circulation and stamina outcomes are more limited but consistent with the proposed mechanism.
Safety notes
Generally well tolerated. Consult a doctor before use if you take blood pressure medication, given its vasodilating mechanism.