Before this polish, I had a horrible time with chipping/breaking my nails and dealing with nicks in the nail tips at least 3-5 times a week. After seeing some blogs mention it, I purchased a bottle and use it ALL THE TIME. Probably the best purchase beauty-wise I have made in a long time.

Nail breaking or chipping is really uncommon now, and nicking is down to once a week, if that, and the nicks are minor and easy to file away without huge issues (I'm one of those crazies that can't have mismatched nail sizes on each hand.)

I use it as both a base coat and a top coat usually, and make sure to put some polish under the tips of my nails to help it stay put when I use it.

The only thing I disliked, was the other day when I took off the polish I was using, I noticed some lifting on the tip of my nail, and couldn't figure out whether I was peeling off a thin layer of nail, or if it was layers of Nail Envy build up.

All in all, I would, and have, recommended it highly, and will purchase again.

this does nothing for my nails. i started using it as a base coat after my nails started flaking, but it does not make a difference (maybe it keeps it from getting worse?). i don't notice a yellow tint, though it is yellow in the bottle.

I use opi's Nail Envy Original as a base coat. I follow the instructions and apply two coats, and then apply my nail color and the top coat as usual. I am on my second bottle. I love it! After I used all of the first bottle, I wanted to try a different opi base coat. After that I noticed I had horrible horizontal waves in my nails. I would buff them down every other day, but they would come back just as bad. I decided to buy another bottle of Nail Envy Original just to see if it would restore my nails as it had before. And just as I thought, it did! My nails are growing back fast and without ridges. This is a must have for me. It is totally worth the price, which isn't bad anyway. I would (and have) reccomend this to a friend. It's the best!

Of late my nails have been peeling and then breaking. I got this after reading the reviews but this did nothing for me. My nails kept breaking. I've used u more than hald the bottle and still no change. I'm giving up. I bought sally hansen nailstrengthner and it works as wel. .........so in my opinion.............try it but keep the receipt coz its not cheap.

It somehow works for my weak nails after the removal of gelish nail polish. **one tip on how to go about using this product as instructed by my mum's manicurist is to remove it every 2 days & reapply it** so it will work, & since other reviewers complains about it being yellowish that's because you didnt remove it. :) continued >>

This is a wonderful product. Literally changed my nails! I used to have dry nails that split and chipped easily and nail envy completely strengthened and seemed to reinforce the structure of the nail, and now I can actually have long nails that don't brake as soon as I go about everyday life! The only cons I'd say is that after time it has seemed to yellow the nail slightly. Also, I remember the first time I used nail envy I had a slight tingly warm sensation and was worried i'd had an allergic reaction, but luckily nothing else happened and I've never had that sensation since! Was a little disconcerting at first though.

Just...no.
As a treatment, it doesn't do much and your nails look kind of terrible with it on. It's yellowish and peels.
For the latter reason, it doesn't work as a base coat.
So, no, I will not be repurchasing this.
I much prefer my LA girl calcium strengthener or my China Glaze Strong Adhesion Base Coat

This did not like my nails. It gave me peeling and more yellowing issues. Just...did not work for me.

This didn't work for me at all! I'm not sure that it worsened my fingernails, but it did nothing at all to improve their condition. All it did was dry on a kind of yellow colour and tinge them slightly. I applied this as directed for a few months with no results, and then thought I would just try to use it as a base and top coat. Still nothing. Nails remained extremely slow-growing, bendy and flaky. Glad I managed to get this for a cheaper price because I would be pretty grumps if I had paid the full RRP for it.

Note - I have also tried Nail Envy sensitive, with the same lack of results.

Ok so I have been using this religiously as instructions say for almost 2 weeks now, I have been growing my nails out and was looking for something to keep them strong and keep from bending or breaking. My nails still feel the same as always...thin and easily bendable :( disappointing for sure. Or maybe I need to try a different formula?