I bought the kit, so I have been cleansing first with the Kavi cleanser, then applying the glycolic serum 30, and then the glycolipidic moisturizer. I only used the glycolic acid 30 once on Saturday when I recieved my products. I think one reason may be me not realizing that there was an extra bottle in the box. I assumed the sunscreen must have been the moisturizer also. So really I didn't use moisturizer for two days. When I got back on this site, I realized I was missing a bottle and then found in in the box.