Dry, brittle nails? Mava-Flex is your go-to solution. External factors like chemicals, water exposure, or sun damage, as well as internal ones like age or heredity, can make your nails dry and hard.This expert serum restores hydration and elasticity with a blend of urea, hyaluronic acid, calcium, and vitamin B5. Enriched with lemon extract and saccharides, it prevents and strengthens the nail plate, making it ideal for harder, drier thicker nails—especially toenails.