Mavala Scientifique Original Nail Hardener | Strengthens Nails, Hardens Nail Tips, Stops Breakage | 0.16 oz

It took me a year of using this consistently along with the oil, but a nail that was damaged to the point of only being half as long as it should be is finally back to looking as close to normal and as strong as it could be. I’ve been consistent with other products but I believe this is the one that made a lasting/strengthening impression on my brittle, ridged, and damaged nails.

As a lifelong nail chewer, I have never taken care of my hands and nails. Last year, I decided that it was time to grow them out. For a year, I would grow nails to just a hair past the nail bed and they would bend, peel or tear. Every. Single. Time. Even taking biotin didn't help with the level of hardness of my nails, they just grew faster so they could bend or tear quicker. I took a chance with Mavala Scientifique (after reading directions carefully and watching a couple of Youtube videos about how to apply it) and now, three weeks later, I finally have all ten nails at or past the ends of my fingertips without a single tear or peeling nail in that time. This is the first time in my 56 years that I have beautiful, strong, hard nails. I don't recognize my own hands. A word of caution: FOLLOW THE INSTRUCTIONS! Do not get this stuff on your skin, cuticles, etc. because it will harden that area almost instantly. Do not overuse the product, either in volume or frequency. If you over apply in volume, the product can soak past your nails and into your nail bed and it will harden (you really don't want this to happen). If you use it more than twice a week, you will make your nails too hard and they have a real potential to shatter or snap right off. I have used this very sparingly twice a week and every time, I can feel the results immediately-- even the first time I applied it. Over these three weeks, my nails are at just about the perfect hardness and once my two damaged nails are done growing out, I will cut back to once a week, then once a month.This product is expensive, but you really need to use almost none of it and it will last for many years if you're using it properly. Most importantly: IT WORKS. If you struggle with soft, weak nails, Mavala Scientifique is an absolute miracle.

I am absolutely shocked. I have had thin, bendy, peeling nails my whole life (never a nail biter). Just thought it was my genetic lottery. I have tried EVERYTHING (I was a cosmetologist for 10 years and have no idea how I didn’t hear about this). Biotin, collagen, iron, pre-natal vitamins. Nail envy, nail tek, every brands strengtheners and hardeners from drugstore to high end. Nothing worked until now. My nails would bend as soon as they got finger tip length and peel or crack. I am only 3 applications in to this product and my nails feel like acrylic! It’s astounding honestly. I can definitely feel that it’s drying out my nails so I can see how it would be easy to over do it. I have managed to balance this out with consistent application of cuticle oil every time I wash my hands. I have one more application this week, then I will most likely back off to once every week or two and see if they can continue to grow. I am so thoroughly thrilled with this product.

A pesar de su pequeña concentración es un producto muy bueno, ayudo a mi esposa mucho. Lo recomiendo

OK, my nails are always soft and they can split, which is painful after using this product that has completely changed. My fingernails are now extremely strong.I am writing this review after using this for more than six years and during that time I have learned that the best way for me to apply it is approximately every 7 to 10 days just at the tips of my nailsIf you use the product too frequently, then your nails can become brittle, however, starts slowly and you will figure out how much to use quickly.They can be a little bit of pain when you put it on and it soaks into the nail that quickly dissipates, and the results are absolutely worth it. I’ve never seen anything that is this effective at strengthening nails.

Update 2018: It used to work for me, but it stopped doing much for my nails after a year. I'm keeping the previous review (although changing the stars to reflect my current position). It may still work for others, and I can't deny that it helped my nails for a while. What is now working for me in a truly much more amazing way is taking collagen powder every day. I didn't start taking it for my nails (but for other health benefits), but after 10 days of taking this powder (Whole Foods collagen), I've found, to my surprise, that my nails are long and strong. Wow! I hope, of course, that the collagen works on other parts of my body, as advertised. But I can certainly say it works for my nails. My nails haven't been this long and strong in 10 years. It's probably more effective to take something internally than to just paint something onto your nails. All I can say, is the collagen is much better.----------------It works! Earlier this year (6 months ago), as I was cleaning out my house to sell, packing things up, doing repairs to the house, etc., my nails were in horrible shape. They were constantly breaking, cracking, and not growing at all. Of course, I was treating them roughly -- mind you, I've never gone in for manicures and such, but I always had very strong nails and never had a probem with breaking nails. I knew I had to do something, once I had fininshed months of downsizing and moving. I tried the typical nail hardeners, but they were just like clear nail polish. Then I found this one, recommended by a YouTube channel favorite of mine. I have been using this several times a week now for 3 months. My nails have grown back and they are very strong and moderately long now. (I don't like really long nails because I'm an active person and don't want to be handicapped by long, fancy nails). What I like about this formula is that it is not polish -- it quickly dries and does not leave a coating that you can notice. IT WORKS! That's the truth. There's nothing like it. And since you only have to use it on the tips of your nails, this bottle will last me at least a year, if not longer. I've barely used any of it over the last 3 months, and it is a very small bottle. BUY it -- you will not regret it.