Does Vitamin C whiten your skin?

pu1. It's been more than 5 years since I took more than 1000cc of vitamin C every day, but there was no whitening effect. But you can catch a cold right away from a cold

2017-12-14

OK

pu2. Applying vitamin C to your skin is said to help whitening, but it's not very useful to eat

2017-12-14

OK