The brightest glitter particles are found in these bottles of Reflective Color Coat. The retroreflective effect occurs due to the special composition of hexanonal glass microparticles that have the property of reflecting the light that is projected onto them. So, the strongest effect is produced when artificial light is directed at the glitter, and this will give the most beautiful sparkles. When reflective nails are exposed to natural light, they will have a classic glitter effect.