At first, I was going to have separate reviews of Innisfree Truecare Vitamin C 20 Ampoule and SU:M37º Water-full Radiant Hydrating Glow Serum, but I found that these two products work so well together, that it made sense to review them together! Jolse, a premier online K-Beauty retailer, sent me both of these items complementary … More Using Vitamin C and Niacinamide together with Innisfree & SU:M37º