Additional Details ------------------------------ Bullet point: Our HD Powders incorporate the flexibility and performance of a homopolymer while maintaining application control of a copolymer. These patent pending Smart Polymers and Optical Brighteners are time released through encapsulated Microspheres. The Plasticizers continue to strengthen the HD nail during the life of the enhancement. Optical Brighteners use a blue colorant that eliminates any discoloration. Whites look whiter, pinks pinker and clears are clearer with the additional benefit of UV Protection.