Hair removal lotions are depilatory lotions that remove unwanted hair, according to HowStuffWorks. They work by breaking down a hair's protein structure so that it easily comes off of the skin when rubbed. Containing chemical depilatories, such as sodium thioglycolate, strontium sulfide and calcium thioglycolate, hair removal lotions are easy to use and produce quick results.
To use a hair removal lotion, spread the lotion over the area of unwanted hair, let it penetrate for the specific amount of time recommended by the lotion's manufacturer, then use a warm, wet washcloth to wipe the hair away. These lotions remove the hair that's just below the skin, so this method of hair removal lasts slightly longer than shaving. When used regularly, hair removal lotions can also slow the growth of unwanted hair.
Hair removal lotions have been known to burn the skin and cause allergic reactions, according to HowStuffWorks. For this reason, it is recommended that users perform a spot test on a small area of the body before using it on larger areas. Those with sensitive skin should consult a dermatologist before choosing a hair removal lotion. Hair removal products are also available as gels, roll-ons, aerosols and thick creams.