used this product made no difference to my nails, and i followed the instructions to the letter. i have soft,peeling splitting nails and they stayed that way. i have no problem growing nails but they tend to break easily if i knock them etc, such a shame as i had heard great things about OPI nail treatments.

Great product! I used to get fake nails done, and leave them on for about a month and then rip them off. My nails were so brittle and I got this product recommended to me by a friend. Best investment I've made on my nails! After a week you notice that your nails are much stronger! I love it! I will get again!

been using this about 2 months now & noticed very good results. I was using this because I tend to wash my hands a lot & my nails are weak so they peel a lot when they get to a certain length. I like growing my nails out but hate that they peel, so my mom got me this product & I've been using it & noticed my nails are stronger :) I do 2 coats first then 1 coat every other day for 5 days then i take it off & let my nails air out for a day or 2 then repeat. The bottle still looks like I've never used it so that's a good thing for the price! I suggest this to anyone wanting to grow their weak nails & to make them strong, you will get your moneys worth. continued >>

I've been using this for a little over a year now. It has made my weak nails much stronger than ever before but they still break every now and then. I apply 2 coats and then the following morning I apply 1 coat of a shade. I don't apply the color the same day because it takes a while for the 2nd base coat to dry. It last for about a week and allows my color to last just about that long as well. I've tried this on my mom who has weak nails but it didn't work for her so it looks like it wont work for everyone.

Definitely makes my nails grow faster, and the brush is perfection. I use this as a base coat every single time I paint my nails, and I think it might have helped prevent them turning yellow. The only thing I haven't noticed much is my nails becoming _stronger_, but they weren't very weak to begin with :) Still a great product, it dries quickly and makes me remember to always use base coat.

I do not have very weak nails, but I noticed that whenever my nails grow to a certain length, the sides will like layer/peel or something like that (get what I mean?) so iI tried getting this.
So far I've only used this for 3 days, it seems pretty okay but I noticed it makes my nails look yellow! Other than that, I do not know if it's the vitamins I've been taking recently or was it nail envy, my nails somehow look better? Hm.
I would not repurchase this because my nails do not really need them that much.

I had been told how wonderful this product was, so I decided to try it. Boy was I disappointed!! I couldn't put coloured polish over top because it wouldn't dry properly and everything chipped off after a few days.
Very disappointing for a product with such a great reputation.

I adore this product, but it turns my nails yellow. Does anyone know why?

I've always had strong nails, but recently I had three nails that were continually peeling. Most likely from all the snow shoveling, keyboard typing, and paperwork I did this winter. I tried oils, colorless iodine, no formaldehyde polishes, cutting them short, buffing them down, etc. and they still peeled. Nail Envy Original has done the trick. It was more expensive than I thought it would be $16 at Ulta, but coupons help. I polished all my nails with it and then used some on the tips and under the nail. Every other day, I reapply doing the same thing. So far, so good. The peeling has stopped and I'm seeing new growth without the peeling inching down the nail. I was concerned that Nail Envy would make my nails too strong and easy to break or snap, but I haven't had that issue at all. Glad I saw the reviews on MUA.

I purchased this product twice and regretted it both times. Its an okay nail strengthener. It could be because of my own nails but, I eat with my right hand all the time [because its tradition or w.e] & I wash my hands constantly & most of the times its my right hand, I've noticed this product made my left hand nails pretty strong, over a course of a month or more :x and my right hand nails are still weak! I wont purchase this product again /: continued >>