A makeup primer is a product used to smooth the skin, fill in lines and wrinkles, and create a less porous surface for your makeup. It is applied before foundation and other makeup products to create a smooth base. The benefits of using a makeup primer include helping makeup last longer, reducing the appearance of pores, and providing a more even application of foundation and other products. To apply it, you would typically start with a clean, moisturized face, then apply a small amount of primer all over the face before applying foundation or any other makeup.HIS PRODUCT IS JUST USED FOR MAKEUP, PLEASE STOP USING IF THE PRODUCT IS INAPPLICABLE FOR YOU. INGREDIENTS: Water, 1.3-Butanediol, Dimethicone/ Vinyl Dimethicone Crosspolymer, Trehalose, Cyclopentasiloxane, Squalane, Shea Butter, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Vitamin E, Trimethylsiloxysilicate, Capric/Caprylic Triglycerides, Glycyrrhiza Uralensis Root Extract, PEG-100Stea-rate, Mica, L-Ascorbic Acid, Edta-2Na, Sodium Hyaluronate, Allantoin, BHA, Ethylhexylglycerin. 2, Gentle press from the bottom to the tor of the chin. 3, Finally gently tap the face to promote absorption. fill in lines and wrinkles, and create a less porous surface for your makeup. It is applied before foundation and other makeup products to create a smooth base. The benefits of using a makeup primer include helping makeup last longer, reducing the appearance of pores, and providing a more even application of foundation and other products. To apply it, you would typically start with a clean, moisturized face, then apply a small amount of primer all over the face before applying foundation or any other makeup.