Well as a whole, the product has improved from years ago, improved formulas and whatnot. Though personally from experience if you have thick hair, stick to shaving, or shave then use Nair to touch up when hair starts to grow back. Less hair means less time you have to leave it on. If your hair is too thick and you try Nair, it'll either take several applications to remove all the hair, or leave the cream on for a long time and either way you do risk burning yourself. Hope that helps at all.