You will agree with me that the number of soaps available in the market has no number. This is to tell us that there are many types of soap available in the market, each with a different purpose. Soaps can be used for personal hygiene, dish-washing, laundry, pet cleaning, etc. There are hard soaps and soft soaps, and there are also those that fall in between. The hardness of soaps can be attributed to the amount of hardening agents in its recipe, and the main categorization of soaps is according to its usage.