Glow in the dark under UV: Fluorescent painting shows bright colors under natural light. After applying the face and body paint with these crayons, they glow under UV lights, black lights, or purple lights. Note that they do not glow in complete darkness without a light source. Safe for Skin: The face painting set includes washable crayons that are easy to remove with mild soap and warm water and are formulated to be gentle on the skin of children and adults. For added precaution, a patch test is recommended before full application. Easy to Use and Wash: The face painting kits for kids and adults feature a twistable design for quick and convenient application. The crayons can be adjusted without sharpening, allowing for precise drawing on face or body. The fluorescent colors are simple to remove with regular makeup remover wipes or soap and water, saving time and effort. Unique and Festive: Unleash creativity and create vibrant body art with this face painting kit. Featuring a wide range of skin-friendly, bold colors, these crayons are easy to apply and remove, making them perfect for imaginative designs and festive looks. Get Happiness: Ideal for Halloween, Mardi Gras, masquerade parties, birthday celebrations, outdoor events, and more. These UV-reactive neon face paint crayons add fun and excitement to any party or costume occasion.