I have very fragile nails that break often and of course the nail polish with it but this product strengthens nails really well and makes growth a lot easier. I've only used this product about 2-3 times and that was enough because my nails have been strong ever since !

I used this a bunch as a clear coat when I was younger. I have pretty strong nails to be quite honest so I can't speak to if it did anything for that. I used to occasionally bite my nails and this made biting them harder to do and tasted bad. So i basically used this to stop biting them.

Works wonders as a treatment and as a topcoat to keep brittle nails from cracking/breaking plus it hydrates the nail and helps to prevent lines and bumps on the surface. I have used Sally Hansen hard as nails for many years, I highly recommend giving it a try!

Sally Hansen Hard As Nails Hardener Treatment this product definitely deserves all of the stars. This is a classic tried-and-true formula that my grandmother told me about first. I've been using this for over 15 years. Helps to protect my nails ultimately allowing them to grow long and strong.

I did not really see a difference in this nail polish as advertised compared to other nail polishes. It chips pretty easily. I suppose if you kept taking it off and reapplying everyday, then your nails would strengthen but I think any other nail polish could do the same.

As a chronic nail chewer this has been my go to. It helps nails grow strong with less chipping and and splintering. It's a clear coat so it works well for growth (or chewing prevention) without leaving a stain look to your nails or being unprofessional in an environment that doesn't allow polish colors.

I used this when my nails were easily chipping and causing pain. It helped to harden my nails because before using this my nails felt soft to the touch (like it can bend easily). So that is impressive! If I my nails ever need some more help I may consider buying this again.

Before gel polish this was the best product to get my nails to feel reinforced and strong. It was drying really fast, which made it perfect for a top coat. The downside it was drying fast in the bottle and half way through it became very hard to apply, so I had to replace often.

I have very brittle nails and they crack just by looking at them, lol. Since I started using this Sally Hansen Hard as Nails, my nails have never looked so good. I put on 1 coat of this after my polish and my nails no longer chip and they grow quickly. I highly recommend this if you want healthy looking nails.

I have the absolute worst nails out there… thin, brittle, chips easily, you name it! I thought I would give this try seeing that I wanted to grow out my nails a bit. This was actually pretty great! I followed the instructions and saw that my nails weren't bending as much! It essentially looks like clear polish. I use it alone but pretty sure you can use it as a base for your other coloured polishes. Definitely recommend to people that may experience the same nail problems as me!