Vigarex uses only the highest grade extracts and nutriceuticals available in its raw material purchasing. It contains Yohimbe Extract which increases blood flow to the penis and dramatically increases libido, L-Arginine which increases natural production of nitric oxide, leading to a more rigid erection and several other ingredients such as Catuaba, Tribulus Terestris, Epimedium Sagittatum, Yohimbe and Maca which increase dopamine levels, igniting a euphoric feeling and increasing sensations during orgasm.