I Bought It Press Sample Affiliate Links It is a truth universally acknowledged that I'm lazy as hell. Well, not lazy precisely, but resistant to adding more work to my day that's not absolutely necessary. Lazy. So when I recommend thinking about adding a longass, annoying step to your skincare routine, it's only because I've done a lot of testing and I've seen major results. In the case of C20 and C21.5 vitamin c serum, it's been more than six months of testing. Why six months? Because …
