I trained with OPI.
They teach you to use a "Smoother file" (I think it's 280 grit) after doing cuticle work. It doesn't etch the surface but smooths any rough bits therefore making polish last longer.
It depends on the nails though. I do the same on all my clients - some will last 2 weeks, some 4 days, depends on the natural nail. On my own natural nails I'm lucky to get 3 days without chips!
They teach you to use a "Smoother file" (I think it's 280 grit) after doing cuticle work. It doesn't etch the surface but smooths any rough bits therefore making polish last longer.
It depends on the nails though. I do the same on all my clients - some will last 2 weeks, some 4 days, depends on the natural nail. On my own natural nails I'm lucky to get 3 days without chips!