I liked this, and it did make my nails harder. I used it either alone or as a base coat under polish.
However for the price, it's pretty basic and I think it made my polish chip faster. I now use Sally Hansen Nail Rehab or an Orly product that kind of does the same thing. I'll use this up, but won't repurchase.
This product is fabulous and has changed the life of my nails!
My nails have always been quite soft and prone to breaking if I let them grow a little bit long (years of biting them when I was younger probably contributed!). I got this product from the Beauty Vault and to be honest I did not have very high hopes for it.
But WOW I love it! I apply one coat to naked nails and it has made such a difference in just a couple of weeks! My nails feel stronger and they are currently longer than I have ever been able to grow them!
The clear polish gives my nails a nice healthy glow. I think that $16 is a bargain and I will definitely be repurchasing and recommending this to friends.
Tips: It also makes a great base or top coat when painting nails.