But the hands may be washed with soap more frequently.
It is also best to avoid the too frequent use of hot water, even upon the hands and face, for the same reason; it takes out too much of the natural oil of the skin, along with the dirt.

Unless the dirt be of some infectious, or offensive, character, it is often best to content yourself with washing off just the "big dirt," and wait for the bubbling up of the perspiration through your skin to bring the deeper dirt up to the surface, and wash that off later, in the course of two or three hours.
Soaps to be Avoided.

Soaps that lather too quickly and easily should always be avoided, for this shows that they contain an excessive amount of soda or other alkali.

It is also best to avoid, or at least be very wary of, any soaps which are dark-colored or heavily perfumed, as these disguises may indicate the presence of decaying, offensive fats, and even of grease extracted from garbage.

This is what strong perfumes in soaps are chiefly used for.