If you’re someone who does their nails regularly, you’ve probably come across a nail polish primer.
It’s a coat you “prime” your nails with to prep them for the actual polish.
Use nail polish primer sparingly
You only need nail primers for acrylic nails.

A base coat will do for these kinds ofmanicures, and many have primer-based properties already.
For acrylic nails, however, a nail primer can really enhance and extend the life of a manicure.
However, the caution involved in utility and chemical ingredients that can thin nail plates may deter some.

One quick fix is to use the acid-free nail primer.
Barnes also advises not to apply it on tips, as they could crack the plastic.