Layla Ocean Rush.
I did my left hand following directions. I used their buffer, and didn't use top or base coats. I did my right hand using my normal top and base coats. I recommend following directions, lol. My base coats made application very difficult, and my top coat really dimmed the holo effect in sunlight, though indoors they look pretty similar.
Application takes some work, but is better on a plain, buffed nail.
Outdoor overcast. It looks like a shimmery sort of matte.
Outdoor sunny. It looked stronger in person, but this gets some of it.
Indoor near a lamp.
So, unless you have a special base coat for holos, follow directions!
Siri types my posts for me.