Tentex Royal is recommended for erectile dysfunction of various etiologies (cardiovascular diseases, endothelial dysfunction and diabetes). The natural ingredients in Tentex Royal act as aphrodisiacs that increase sexual desire, treats male sexual weakness and premature ejaculation. Role of Key ingredients: Small Caltrops (Gokshura) is beneficial in erectile dysfunction. Gokshura improves flow-mediated dilation of the penile arteries. This results in the relaxation of vascular smooth muscles, which enhances erection. Hygrophilia (Kokilaksha) releases nitric oxide (NO) from endothelium and nitrergic nerve endings of the penis, relaxing the cavernosal (a sponge-like area around the penis that has most of the blood during erection) muscles and increasing penile blood flow. This is helpful in correcting erectile dysfunction.