Can i take vitamin c for skin whitning?

Don't do it: It won't work, and i also hope you won't try to lighten your skin in any other way. Topical agents will disfigure you. In the usa, judging a person by skin color is the height of ignorance, and this is becoming the norm worldwide. Stay fit to look good, learn useful skills to be effective at work and with others, and enjoy whatever genetic skin tone mother nature gave you.