The NOOD No-Show Extra Lift Adhesive Reusable Lifting Nipple Covers use a medical grade water based silicone adhesive that is skin friendly, hypoallergenic and dermatologically approved! These are adhesive nipple covers that give you a little lift without needing a bra. They are Zinc and Latex free, so great for sensitive skin too. NOOD No-show Nipple Covers are seamless, made from SkinFinish matte silicone for a smooth seamless finish that blends seamlessly into the skin without leaving any visible outlines, even under thin tops. The center is thicker for coverage of even the most prominent nipples. To wear, just make sure your chest is clean and free from oils, moisturizers, or perfume since these things can reduce the effect of the adhesive. Turn your petal inside out and then firmly cup and smooth over your nipple.