Try this: wash your hands really well after using nail varnish remover and then rub some castor oil into your nails.
I can't believe what it's done to my nails. Healthy and strong now.
I only started using castor oil because I figured I needed to get rid of it after OCM didn't work for me.
I used to use mavala scientifique with ok results but castor oil is much better.
Hope it works for you.