What is it?
Benzisothiazolinone is a chemical preservative used in a wide variety of industrial and household products.

How can I avoid it?
Skin contact with benzisothiazolinone is required for it to cause a rash. Discontinuation of exposure to products containing benzisothiazolinone should result in improvement and/or resolution of your rash. By law, all products made in the U.S. for topical use have the ingredients listed either on the product package or on the box that contains it, so check the labeling of your skin care products for this ingredient. If there is not enough information, ask your pharmacist or retailer, or contact the manufacturer directly.
At work, request a Safety Data Sheet (SDS) to help identify potential sources of exposure.

  • Adhesives
  • Antiseptic agents
  • Bactericide
  • Cooling fluid
  • Cosmetics
  • Cutting oil
  • Dyes
  • Fabric softener
  • Fungicides
  • Fur
  • Gloves
  •  Household goods
  • Inks
  • Laundry detergents
  • Leather
  • Paints
  • Paper
  • Photographic processing solutions
  • Stain removers
  • Textile industry
  • Varnishes
  • Water systems
Other names for Benzisothiazolinone:
  • Tinuvim 928
  • BIT
  • Proxel PL
  • Proxan
  • 1,2-Benzisothiazolin-3-one
  • 1,2-Benzisothiazol-3(2H)-one
  • Benzisothiazol-3(2H)-one
  • Benzisothiazolin-2-one
  • Benzisothiazolin-3-one
  • Benzisothiazolin
Potential cross-reacting/co-reacting substances:
  • Methylisothiazolinone (MI)
  • Methylchloroisothiazolinone/Methylisothiazolinone (MCI/MI)
  • Octylisothiazolinone

How safe is it?

Hang tight. We're thinking.