Yes, this question is for both the men and the ladies. Depending on which body part you need supported, there may or may not be an excess amount of hair. For the most part, though, shaving beforehand is not going to be necessary. Especially for your arms, shoulders, and other such areas, it will not be. But, if you find that the adhesive struggles to stick on your skin, you certainly can try to shave beforehand. Without question, it will help with the adhesion as the cleaner and barer the surface, the better. Still, it is not mandatory.