Detailed answer

Sunscreen and facial scrub are two different products with different purposes and applications. Sunscreen is designed to protect the skin from harmful UV rays, while facial scrub is used to exfoliate and cleanse the skin. Applying sunscreen on top of facial scrub may interfere with the exfoliation process and prevent the scrub from effectively removing dead skin cells and impurities. It is best to use sunscreen after cleansing and exfoliating the skin, allowing the sunscreen to form a protective barrier on the clean skin.