Please read this data carefully. It is hopeful but not definitive by any means.
This drug works by stimulating your own Melanin production. The body's protection against UV rays is the darkening of the skin via pigment. The advanced version is a actually sexual stimulant. Currently, only the injectable form is valid. It is "not generally recognized as safe", so it will be a while before you can buy this at a drug store.
The next version of the drug will be a sexual stimulant for both men and women.
The future in anti aging and skin cancer prevention has a drug that get you tan, prevents cancer and enhances your sex life.