Baking soda is an ideal product for the hygiene of the whole family. It has multiple uses, and the advantage that it generates zero residues. It is useful to provide relaxation and leave the skin smooth, firm and soft in a warm bath, also as a tooth whitener added to the usual toothpaste. As a mouthwash, it freshens breath and neutralises acidity in the mouth. Used in the armpits, it is a perfect odour neutraliser. It can be used as an exfoliant, to clean hair, and for many other applications.