Lets see,

1) yohimbe
2) maca
3) horny goat weed
4) sarsaparilla
5) damiana
6) zinc

these are all herbs/vitamins. Its best to find a formula that contains all of them so you can take them all in one capsule or tablet.

Go to the health food store and ask for a supplement.

The most important formula for good sex is to maintain good health:

1) keep your weight under control
2) keep cholesterol down
3) exercise
4) eat plenty of fruits and vegetables.

A healthy body is required for healthy sex organs. Make sure you are as fit as possible and good sex will come with it.

Hope this helps...