The reason acrylics (or silk wraps, etc.) ruin nails is that they take a dremmel bit and grind your natural nail down to half it's natural thickness, to rough them up and provide a base for they acryllic gel.
Once you have THEM take them off (your fingers soak in solution for about 10 minutes, then they come off easy, anything else rips the nail off the bed, which is super painful and damages the nail), your nail grows in and the ground down section is very weak AND ugly, and ridges can form because the protein buckles.
I love acrylics... (betcha thought otherwise!)... When I have them I keep them SHORT (can play instrument short), and thin (you have to ask for that, they'll grind the acryllic down to JUST thicker than natural nail thickness, and French.
That said...
To keep your promise:
- Shellac + tips if she wants them long.. But just shellac would work as well.
What it is: VERY thick resin based nail polish that has to set under a light. Perfect looking nails with no dremmel bit grinding.