What does antiperspirant mean?
An antiperspirant is a personal-care product designed to reduce sweating, most commonly applied to the underarms as a stick, roll-on, spray, or cream. Unlike a deodorant, which targets odour by masking or neutralising bacterial activity, an antiperspirant works physiologically: its active ingredients, typically aluminium salts such as aluminium chlorohydrate or aluminium zirconium compounds, dissolve into sweat and form temporary gel-like plugs in the sweat ducts, reducing the amount of moisture that reaches the skin's surface. The term is standard in both British and American English and appears constantly in advertising, dermatology, and everyday conversation. Stronger formulations are marketed as 'clinical strength', and prescription versions exist for people with hyperhidrosis, a condition of excessive sweating. Because sweating is natural and beneficial, some consumers prefer deodorants alone, making the antiperspirant-versus-deodorant distinction a recurring topic of public discussion.
nounA substance, typically applied to the underarms, that reduces sweating by temporarily blocking the sweat ducts, usually with aluminium-based compounds.
- A cosmetic or hygienic product applied to the skin to reduce sweating by blocking sweat ducts.
"She applied a clinical-strength antiperspirant before heading out into the summer heat."
"He always keeps a travel-size antiperspirant in his gym bag."
"Dermatologists sometimes recommend prescription-strength antiperspirants for patients with hyperhidrosis."
The plural is regular and is commonly used when discussing different products or brands collectively.
"The store stocks a wide range of antiperspirants, from sprays to sticks."
The first commercial antiperspirant, Everdry, hit shelves in 1903 — an acidic solution so harsh it could eat through clothing.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of antiperspirant
The word antiperspirant derives from the Latin verb 'spirare' ('to breathe or blow'), via the compound 'perspirare', which gave English 'perspire'. The prefix 'anti-' opposes the action of perspiring, so the noun literally means 'against perspiration'. It shares this Latin root with related English words such as 'respire', 'inspire', 'expire', and 'transpire'. The product itself is a twentieth-century commercial invention, with early antiperspirants appearing in the United States in the opening years of the 1900s.
How antiperspirant is actually used
Antiperspirant is a common everyday noun in both British and American usage, neutral in register. It is frequently distinguished from deodorant in consumer and medical contexts, since the two terms describe different functions even though combination products are widespread.
Easily confused with antiperspirant
Deodorant masks or neutralises body odour caused by bacteria, whereas antiperspirant actually reduces the amount of sweat produced; many products combine both functions.