Nail-Aid Biotin Ultimate Strength Vitamin B7 Nail Polish by Nail-Aid

Fantastic product, noticeable difference during and after use. Very strong coating when using it and strengthens the nail underneath so you develop naturally stronger nails the more you use it. Easy to use and cant really fault it. One of the best ones of its kind that I've tried for an affordable price

fantastic product changed my nails completely I bought both this one and the sapphire strength one and use them alternate days could not be happier highly recommend

I bought this because it isn’t tested on animals as I do with all of my make up also. If these companies can be cruelty free, why can’t all of the other companies? The product is great, the only reason I haven’t given it five stars is I can’t understand why the brush is so short. It makes it harder to get the nail varnish out. Apart from that it’s great.

I do think this product is a bit pricey for what it does. I've been using it as per instructions, and can't say I've seen much change to my nails. I do think they are a little stronger but still brittle. However, everyone's nails are different and this may work better for others.

Good product My nails are definitely stronger

Ok... So I messed my nails up with gels, biab and not getting them properly taken off. My nails were so thin and weak... Disaster! So scrolled through amazon and found this. I bought it. I used it as instructed pretty intensely at first, then less so after about 2 months. I'm probably 5 or so months down the line and a lot of the damage has grown out now and my nails are growing and are stronger. I think this really helped me. I could certainly feel after I applied a couple of coats that my nails felt stronger, when they were dare I could literally bend them but with this on it was stronger and gave more protection. I would recommend this to anyone suffering with nail weakness

I wasn’t impressed. My nails were breaking a lot more often. I prefer the Nail-aid keratin.

Wow! I'm so impressed, even after the first application! I've tried so many nail products in the past to try & strengthen my nails but none have worked as well as this product. I'm so hopeful that in time my nails will be very hard, without any bend. Got it on subscribe now, it's so good! One very happy customer 🙂

جربته ترا مو مره واو يعني بستمر واشوف

No cumple con lo que dice, 2 semanas usándolo y las uñas están igual ,ni endurece ni crecen más fuerte Para mi todo un engaño

It is as good as Mavala blue water. Very good product, really helped for strengthen and grow my nails.

I swear on my life, there is nothing I recommend to people more than this strengthener as a basecoat. I had been absolutely SUFFERING with nails that would shatter at the tips or have that flap on the side that is just like, whoops, bye! INSTANTLY, even in one coat, this stuff helped. I've finally been able to grow my natural nails out longer than the press-ons I had been stuck under for ages. And they're strong enough to slam in doors, or shred things with them-- like this stuff weaponized the heck out of them! (I mean, not LITERALLY, ofc) Get this stuff. It's cheap, it looks smooth and dries insanely fast. It'll keep your polish on without chipping away and then just do it again after your next mani too. Thrive. You won't regret it!

I have very brittle soft nails that don’t grow very well. I ordered 2 of the bottles of Nail Aid Biotin Ultimate Strength nail treatment and as this is the second day I have used it I don’t have a real sense of trying it out. It goes on very well and the 2 coats did seem to have made my nails less bendable. The nails have a high gloss which looks great and I have to put a second application of 2 coats on in 1 day after using a polish remover and cleaning the nails. This is the first time I have felt comfortable that this product will work as no other nail strengtheners have done so.