TestOnyx First, the effect of male enhancement supplements usually isn't increased promiscuity, but rather increased self-esteem. Some argue that a male's size shouldn't be associated with his self-esteem, but this is still the case for many people. For whatever reasons in our culture penis size is correlated with success. Men don't choose this, but rather they are indoctrinated with this ideology while growing up. Self-esteem is important, and if male enhancement is all it takes for somebody to have a healthy level of self-esteem, then its well worth the cost.