Final answer:
A chemical depilatory is a substance used to temporarily remove hair by dissolving it at the skin level. It breaks the disulfide bonds in keratin and hydrolyzes the hair. Chemical depilatories are available in various forms.
Step-by-step explanation:
A chemical depilatory is a substance used to temporarily remove hair by dissolving it at the skin level. It usually contains caustic alkali preparations such as salts of thioglycolic acid and thiolactic acids. These compounds break the disulfide bonds in keratin and hydrolyze the hair, making it easy to remove. Chemical depilatories are available in various forms such as gel, cream, lotion, aerosol, roll-on, and powder.