The best nail strengtheners are packed full of nourishing ingredients that hydrate, moisturise and strengthen nails. How to apply nail strengthenerYou can apply your nail strengthener underneath traditional nail polish or simply wear it alone if you're having a break from manicures. Most nail strengtheners apply clear and should dry relatively quickly so you needn't worry about too much downtime after application. Regularly using a nail strengthener can be a low maintenance way to keep your hands looking fresh. The best nail strengtheners to shop in 2025There are plenty of options out there, but you don’t need to spend a fortune for tip-top talons these days.