For nails in need of nourishing care, treat them to Gel Rehab, a formula designed to hydrate and visibly strengthen nails in between manicures. NAILS.INC's Base Coat and Treatment features a cocktail of keratin-rich spinach, seaweed, peptides, nitrocellulose and kale, all of which repair the appearance of damaged, brittle nails. Protecting against further breakage, the nail treatment smooths the appearance of ridges while granting a high-shine finish.