1 Vitamin E - It doesn't directly reduce melanin production but it is effective in reducing hyper pigmentation caused by melanin over production.  Use a good SPF protection to all the exposed parts before going out in the sun and keep ypurself covered (It may get hot though...so upto you!!)
The HPV vaccine protects preteens, teens, and young adults from Human Papillomavirus (HPV). Research shows that when boys and girls are vaccinated early - at 11 or 12 - they're better protected from the serious health problems HPV can cause, including certain cancers and genital warts.
The HPV vaccine protects boys and men from most cases of genital warts and cancers of the anus, penis, and mouth/throat. The vaccine is recommended for boys at age 11 or 12, though it can be given starting at age 9.