I wil ALWAYS have this with me!!! The last few months my nails had gotten very brittle. A lot of factors could be the reason for it - stress, poor diet, not eating my multivitamin, not wearing gloves when I wash dishes and work in the kitchen.............whatever but my nails just broke or peeled off. I tried the regular sally hansen stuff but all it did was make the more brittle or the polish/strengthner would peel off and then so would my nails.
I read about this on MUA and decided to buy it. I know its not the cheapest product out there BUT it really works!!! it stays on and does its job! I have really nice nails right now and i have changed nothing except use this. Definitely worth trying and holding onto!

I bit my nails for 28 years. And when I say bite, I mean there was NOTHING left. I finally kicked the habit by wearing gels for 6 months. Talk about expensive. I finally ditched the gels and I started using Nail Envy. My manicurist can't believe I ever bit my nails. They are strong and beautiful and hardly ever break. I love it as a base coat and it's pretty on its own as a shiny protective coat too. I tried cheaper nail strengtheners since and NONE have even come close to the results I get with Nail Envy. I highly recommend! It's worth the money!

The best base coat - nail strengthener that I've ever used. It's a bit too expensive, this is the only downside. I use 2 coats of it before applying coloured nail polish. It makes my nails sooo healthy and strong! I used to break my nails all the time when hiting them slightly, but now when I accidently hit them, they all remain safe! This is amazing! I can see the difference! Will buy again!

Don't get me wrong, this is a great nail strengthener but not so much as a base coat. I was looking for a good base coat and thought i would try this. my nails are yellow from this base coat so i will go get a different brand when i finish this. the price: $10

I think this product works. I've been using this for a few months. My nails feel stronger and they don't peel as much after I take polish off. I'd buy this again!

My nails break so easily!
I love this! It makes my nails stronger and it has a "shine" to it.
I think the price is a little bit too expensive.

This product works great!!! I have never had stronger, longer nails. I bought it after I took my acrylics off and needed some nail strength, now I dont even need fake nails, mine look better than ever and Natural!!
I always find the price of O.P.I. insane....I went to my nail salon and off Broadway and they were selling it for 7.00 a bottle...I live in Vancouver B.C., and usually Canada sells EVERYTHING for double the price it should be.

Check local nail salons for good deals on O.P.I., I have also found the double pack, top and bottom coat from the salon for 10.00 for both.

O.P.I. is amazzzzing!!!

I've never really had "nice" nails. They break so easily, mostly due to my two jobs. I work in a kitchen/restaurant type setting for one job, and then my other job is at a salon where I'm constantly using heavy-duty sanitizers which seem to eat away at my nails. I received "OPI Nail Envy & OPI Avoplex" combo pack as a birthday gift from a friend with gorgeous nails. It's certainly working wonders. I follow the directions as best as I can. If you layer, layer, layer over a period of time without removing every now and then, then yes your nails will turn a yellowy hue. So follow the instructions for best results. I haven't ever used any other nail strengthener so I can't compare this product to anything else, but I'm satisfied.. so I would repurchase. I recommend it to others.

I purchased this strengthener last Wednesday and have been diligently using as directed. So far, I love the results and have been monitoring my nails quite frequently. The day after I first used the treatment I noticed my nails to have already changed. My nails have never looked and felt better :)

** One major issue I have is the price **
For only ONE bottle it costs 19.95$ [I live in Canada] and so I highly, highly recommend to purchase a two for one deal. I ended up buying a strengthener and a cuticle oil treatment for 19.95, both created by OPI.

well i got this product at winners for soo cheap it came with a free nailpolish remover and wipes,when i first used it my nails kept peeling with the polish but then after a while it worked like a charm and i just cannot stop using it