for Sun Activated Photochromic Liquid Epoxy Resin Pigment Color Change Resin Colorant Color Shift UV Pigment Jewelry Making Feature: This Pigment changes colors when exposed to Sunlight or UV light, and reverts to its original color when sunlight is blocked. The pigment is WHITE indoors, but when you move it outdoor and expose to Sunlight, it turns to your color depending on how strong the for sun is and how much Ultra Violet light it absorbs. The process is reversible- when you go back indoor or block UV light, the pigment turns back to its original color- WHITE. It could be mixed with materials such as glues, paint, varnishes, resins, mediums, gels, liquid plastics/polymers, nail polish and many more. The pigment doesn'for t mix with water. Our products can be used for Color Changing Slime, Goo, Nail Polish, resin art projects Home & School projects, Science Experiments, Arts & Crafts or wherever your imagination takes you. Specification: Material: Sunlight Reactive Pigment Color: Red,Yellow,Blue,Violet, Size:10ml Quantity: 1 Bottle Note: Size for manual measurement, there may be a 0 to 3mm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes(without retail package): 1 Bottle xSunlight Reactive Pigment.