this is my third purchase of this oowder [SEP] use any polish buy pretty diva no wipe uv led gel once polish is dry apply the gel place in uv nail machine for about a minuteyour gel will be firm but not totally set use the eye shadow tool and dip in the holographic powder and lightly cover and then still lightly rubbing in a circle until you are happy with effectuse your free hand and lightly rub in andvoff the excess powderthen apply one more coat of gel place nails in the uv machine for about minutes and you will have nails so prettylots of complements the effect is more pronounced with dark colors black is very pretty as well as dark blues ect