How to use Vitamin C serum?

  1. I had been planning to use it at night but I've read it is more effective during the day. Or do you have to use it night and day to be more effective? I'd rather use it only once to avoid having too many products on my face all the time.

    Also, how long do you have to wait after applying Vitamin C, before applying your daytime moisturizer and sunscreen? Is it ok to apply lotions with other antioxidants on top of the serum, will that "negate" any of properties of Vitamin C?
  2. I use mine at night because hat's when I have my main cleansing routine. I apply it and then wait about a minute before putting on moisturiser. It absorbs very quickly
  3. that's...not hat's!
  4. I use it morning and night, but I totally understand why you might only want to apply once a day. I way a couple of minutes until it dries before applying anything else on top of it.

    I didn't realize anything negated the vitamin C. I've been using a glycolic acid cream over it. Do you think I should stop doing this?