I've been reading good things about peptides but I've also read that you shouldn't use them with any acids or vitamin c. I feel like I either use a vitamin c or some kind of acid in my routines, so should I skip the peptides? Are any safe to combine?
I think the advice not to mix peptides and vitamin C relates to only one type - copper peptides. Even there the recommendation is not to mix products and wait a few min between application not to deactivate both actives. But otherwise it's safe and you can use both.