Step 1: PURIFY ME (5.07 fl. oz / 150 ml) is a hydrating facial cleanser.
Step 2: C ME (1 fl. oz / 30 ml) is a vitamin C brightening serum.
Step 3: REVIVE ME (1.69 fl. oz / 50 ml) is a firming daily serum.
Step 4: PROTECT ME or PROTECT ME 50 (1.69 fl. oz / 50 ml) are ultra-light moisturizers with mineral sunscreen.