Why use the pads of the fingers rather than the fingernails during shampooing and scalp massage?

Cosmetologists use the pads (cushioned tips) of the fingers, not the fingernails, during shampooing and scalp massage to avoid scratching, abrading, or injuring the scalp. A scratched or broken scalp is uncomfortable and can be a problem before chemical services, where broken skin reacts badly to chemicals. Gentle, nail-free technique keeps the client comfortable and the scalp intact. This small but important practical point connects shampoo technique to scalp safety, a recurring concern on the exam.