NailnerUltimate All-in-One Nail Hardening Treatment – Nail Polish Strengthener – Clear Nail Varnish – Nail Strengthener for Damaged Nails – For Stronger, Harder, Healthier-Looking Nails – 10ml

Works well.

This nail hardener is very good. It goes on well and dries quickly. I apply it twice a week as recommended. My nails do not flake as much and I have no more breakages. I recommend it.

Read the reviews before purchasing and it's as good as the reviews, just be aware of the smell as it's drying ! Be warned it's not pleasant

This nail harder is amazing. Got my nail done and when the fake ones came of so did most of my nail . I tried everything and then I bought this . My nail are beginning to grow as soon as you put it on you feel it getting heavy. Before everyday they would break, now there getting longer and strong. Great stuff.

First time I used it everything was fine. Second time I applied it was ok but after a day I did some washing in hot water and it went gooey.Wouldn’t recommend it

This is marvellous for strengthening nails.

Good product, does the job, good value

I have been using this about 4 weeks now. I have really thin, bendy nails. At first I thought it wasn't working as my nails don't feel any stronger, but they have grown & I haven't split, which is my usual problem. I was hoping it would make my nails harder which it hasn't. They still bend, but at least now they don't split, which is a good result. I plan to continue using this.