1-(3-Chloroallyl)-3,5,7-triaza-1-azoniaadamantane chloride

Found in some cosmetics and personal care items; also used as an antimicrobial in certain industrial water systems [1][5].

Mainly through skin contact with products that list quaternium-15; workers may also breathe vapors or mists during mixing or use [1][2].

Can trigger allergic contact dermatitis; released formaldehyde can irritate eyes, nose, and throat and is carcinogenic with long-term exposure [1][2][3][4].

People with eczema or prior formaldehyde allergy; salon and healthcare staff using preserved products; workers who manufacture or use industrial antimicrobial products [1][2][5].

Choose products labeled “formaldehyde-free” and avoid quaternium-15 on ingredient lists; at work, improve ventilation and use gloves/eye protection and follow Safety Data Sheets [1][2].