Nail polish will help keep your nails stronger and prevent breakage. And,U are less likely to bite your nails when they are painted, because they taste like poo...may be it will works coz U know nails grows at the rate of 0.1 mm daily and it is the faster growing part of our body too..The nail plates are dead cells and contrary to the popular belief,They don't breathe.So they don't require oxygen. However,in my thought there is no any method to grow it faster we can just protect it from damag
Lisha
