Diamond Strength Instant Nail Hardener

I got it on sale for $1.99, I thought I would give it a try since I have long natural nails and would like to keep it from breaking. It does harden the nail, but it's not as long-lasting as I would...

I ran out of my OPI hardener so I bought this one. I love it. Its so much better that OPI. It smells less toxic too. It dries with in a minute. I have long natural nails and this keeps them hard...