BKC 50%/80% (Benzalkonium Chloride)

Used as disinfectant, preservative and conditioning agent in some products.

Contact lens solutions (special grades), antiseptic creams, industrial uses.

Dilute and incorporate per technical sheet.

Irritating to skin/eyes at high concentrations; regulated in personal care — follow local rules.

Low % as preservative/antiseptic — follow supplier/regulatory guidance.