Hypoallergenic Adhesive, Easy to use and gentle on skin. They can effectively hide erected or dark nipples and can be worn with or without a bra as they are invisible even under thin fabrics. Protects sensitive nipples, Ideal for wearing strapless dress, backless costume , tank tops, sheer or transparent blouses tight fitted see-through suit, evening dress, club wear, party etc, good for showing your charming figure! Skin friendly, very conveniently and cleanly. Conform to your shape no wrinkles, easy to put on and off. Warm tips: Do not use moisturizers, perfumes, powders or other skin care products prior to use, as this will reduce the effect of the adhesive.