I wonder if it has formaldehyde in it? I use a Rimmels nail hardener that has formaldehyde in it. I bought one from an independent chemist years ago and when I tried to buy more it had been discontinued. But I managed to buy lots of it off the internet. I only use it on the end of my nails so I hope it isn’t too dangerous. I’ve never found anything else that works. Although Avon do some nail strengthening varnishes and their products are very good these days.
What is your favourite healthy vegetarian meal?
Why can't I wear this to a wedding?
but some are still breaking very low down, despite using a clear strengthening varnish.