I love the fact that these are vegetarian. Although my boyfriend is pretty muscular already with a very healthy sex drive, it seems to be even better since he has been taking the pills. He seems to be getting more toned and have more energy. With what I have seen so far with these, it would definately be worth a try for somebody who was interested in increasding these qualities. Of course, ewverybody is different, with different body chemistry. But I have seen enough results fo this product that I know they do work. Good luck and I wish you happy times ahead.