1. After using Dermatology Booster and Dermatology Serum, apply an appropriate amount of cream on face and let it absorb into skin
  2. If you have sensitive skin, apply Active Cream first, then Dermatology Serum, followed by Dermatology Booster
  3. Active Cream absorbs over time, even with a thick coat
  4. Once the cream absorbs, feel free to re-apply, depending on your skin type