Liquid acrylic nail hardener. You put it on like nail polish, and it dries to a hard plastic coating that encases the entire nail. It’s the best – you don’t even know it’s on. First coat underneath the nail, then the top with vertical strokes down the nail. Don’t try to get too fine a coat. Put on a reasonable amount and brush it out. That will prevent the coat from being too thick, and also even out the coat. Don't make the mistake that some do of putting on too thin a coat. Two coats is usually enough, but experiment with a possible third. Three will last two weeks or so, depending on how much you play.
As for brands: Many years ago Juan Serrano told me he used a nail hardener “Sally Hansen Hard As Nails,” and I have used it for all these years. But get the original – red and white label, says “Hard as Nails” in a red horizontal stripe. Most drug stores have it.
A couple of years ago one of my students said he had found a liquid hardener that was fantastic. I tried it and now that’s all I use. Makes your nails like steel. Two good coats and you can rasgueado till the cows come home. (Guardame las Vacas.)
But it’s not in stores. It’s called “Irene Gari Calcium Base Coat.” Same application as above. You can get it online, and I just got some on Amazon.
You can try both, but I think if you start with the Irene Gari you will probably just stick with it.
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