How to Build a Simple 3 Serum Skincare Routine for Healthy Skin (Expert Guide) Quick Expert Answer A simple 3 serum skincare routine usually includes one hydrating serum, one treatment serum, and one antioxidant serum applied in the correct order. Hydration should come first, followed by treatment ingredients that target skin concerns, and finally protective antioxidants. This … Continue reading How to Build a Simple 3 Serum Skincare Routine for Healthy Skin (Expert Guide)