Skincare products can be divided into cosmetics, to improve the appearance of skin, and drugs, used to treat skin diseases; drugs are distinguished as having a biological effect on living tissue. The term ‘cosmeceutical’ was first coined by a leading dermatologist by combining the words cosmetic with ‘pharmaceutical’. However, in most countries, this term is not recognized by regulatory bodies as a separate product class, thus it is not clear what type of products are considered to be cosmeceuticals.

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