Grow Tougher Nail Strengthener is a toxin- and cruelty-free nail care product from progressive Florida-based Nail Aid. The formula, which contains wheat protein, multivitamins, and calcium (instead of formaldehyde, toluene, and dibutyl phthalates), protects against chips, peeling and splits while stimulating growth and also acting as a fast-drying base coat for manicures.
