Nail polish base coat for brittle nails

[Cocochai]

I’ve never been able to wear nail polish as on the few occasions I’ve tried to, and removed it a few days later, my nails within a week start splitting and breaking. Ridges appear and my nails basically just fall apart and look terrible and I have to wait for them to grow out.

I’ve just seen a nail polish colour I love and I wonder if there is something like a base coat for super-sensitive/brittle etc nails that might protect them?

I have a Chanel one (Le Base) because it’s conditioning. I think it contains an ingredient called Hexanol. There’s a a YouTube channel someone recommended on here the other week who has really good information. I’ve been watching the videos. I’ll try and remember what it’s called.

Have you tried BIAB?