I have used this several times and I love it each time! I found the initial cure time to be way too long to be able to chrome with it. Maybe it is my light? I used it first on a swatch stick to see how the directions held up. On my actual nails I cute for ten seconds only. Then use my chrome or mirror. Works perfectly that way for me. I used this for a regular topcoat over dip and the shine is phenomenal. Def recommend!