I have been trying 2 nail polish treatments for a while now and I haven't been able to figure out which treatment works better on my nails. I've told my nail story before -- I have split nails that don't grow as long as they use to. I wore gel nails for about 5 months and after that my poor little nails have never been the same. So, in an effort to make them pretty for you good folks, I've been using a few treatment products underneath my polish.
My first purchase was the Sephora Formula X Nail Hydrator. It's supposed to help hydrate your nails, and improve the flexibility and strength of my nails. I picked it from Sephora for $14. I have really enjoyed using it. I saw my nails get stronger although not longer. I used 2 coats of it under all my manicures and pedicures (my toe nails, BTW are fine. They grow waaaaay more than I want them to).
So when I picked up the Revlon Treat and Boost treatment (about $5.99) from CVS during the 50% off sale, I wasn't sure that it would do anything better than what I was already using. I would use 2 coats under my manicures and pedicures just like I did with the Sephora Formula X treatment. I used it for several weeks to see if it was any better.
But it wasn't any worse, either.
They are both really good products. They both put a healthy barrier between the polish and the nail and maybe that's what helps the splitting. I'm not sure. But I am sure that they both work better than I expected. My nails are healthier and even though they aren't growing as long as they use to, they are growing stronger.
So I recommend them both. The only problem is that the Revlon Treat & Boost is being discontinued. To my knowledge, Formula X is not.
So I say get the Revlon now (maybe get 2 of them) and then when you use them up, splurge and get the Formula X.