Our three-color rainbow protective primer is carefully formulated with sodium lauryl sulfate and glycerin. Designed specifically to improve dull skin tone and give the skin a natural luster and semi-transparency. The usage method is extremely convenient: First, clean your face to make sure it is clean and free of oil. Take an appropriate amount of this product and gently pat the entire face, avoiding missing any part. Apply gently according to the texture of the skin to ensure even absorption. And it can effectively block ultraviolet rays, dust and harmful substances, protect the skin from damage, cover spots, blemishes and red blood vessels, and make the skin smooth and flawless.