People often use the term "personal care products" to refer to a wide variety of items that we commonly find in the health and beauty sections of drug and department stores. The term "personal care product," however, is not defined by law.

Under the law, some of the products commonly referred to as "personal care products" are cosmetics. These include, for example, skin moisturizers, perfumes, lipsticks, fingernail polishes, eye and facial makeup preparations, shampoos, permanent waves, hair colors, toothpastes, and deodorants. Some, however, are regulated as drugs. Among these are skin protectants (such as lip balms and diaper ointments), mouthwashes marketed with therapeutic claims, antiperspirants, and treatments for dandruff or acne.

Some "personal care products" meet the definitions of both cosmetics and drugs. This may happen when a product has two intended uses. For example, a shampoo is a cosmetic because its intended use is to cleanse the hair. An antidandruff treatment is a drug because its intended use is to treat dandruff. Consequently, an antidandruff shampoo is both a cosmetic and a drug, because it is intended to cleanse the hair and treat dandruff. Among other cosmetic/drug combinations are toothpastes that contain fluoride, deodorants that are also antiperspirants, and moisturizers and makeup marketed with sun-protection claims. Such products must comply with the requirements for both cosmetics and drugs.

Generally, drugs must either receive premarket approval by the FDA or conform to final regulations specifying conditions whereby they are generally recognized as safe and effective, and not misbranded. Cosmetic products and ingredients are not subject to FDA premarket approval authority, with the exception of color additives. Cosmetic firms are responsible for substantiating the safety of their products and ingredients before marketing.

In addition, some "personal care products" may belong to other regulatory categories, including medical devices (such as certain hair removal and microdermabrasion devices), dietary supplements (such as vitamin or mineral tablets or capsules), or other consumer products (such as manicure sets).