INCI Name
Benzisothiazolinone
Functions
2 Roles
Sustainability
3/10
Category
preservatives
What It Does
Preservatives are the guardians of product integrity. They prevent the growth of harmful microorganisms—bacteria, yeast, and mold—that could contaminate cosmetic products. Without preservatives, water-containing formulations would quickly become breeding grounds for pathogens.
Prevents bacterial contamination
Extends product shelf life
Ensures formula safety over time
Maintains product efficacy
Technical Properties
pH Range
2.0-9.0
Optimal working range
Ionic Charge
nonionic
Molecular charge type
Viscosity Effect
neutral
Impact on formula thickness
Foaming Ability
none
Lather generation
Ingredient Compatibility
Works Well With
nonionic surfactantsemollientshumectantsmost actives
Avoid Combining
strong reducing agentsheavy metalshigh concentrations of amines
Compatibility analysis powered by OpenMix — open-source formulation science
Sustainability Profile
Sustainability Score
3/10
Biodegradability
not readily biodegradable
Source
synthetic
Related Ingredients
Similar preservatives to explore
Glycerin, Aqua, Sodium Metabisulfite, Glycine, Larix Europaea Wood Extract, Zinc Chloride, Camellia Sinensis Leaf Extract
Multi-ingredient antioxidant complex
Benzisothiazolinone (and) Methylisothiazolinone (and) Ethylhexylglycerin
Geogard ECT
Benzoic Acid
Benzoic Acid
Benzisothiazolinone (and) Methylisothiazolinone (and) Water
Geogard ECT
Benzyl Alcohol
Benzyl Alcohol
Quick Reference
- Full INCI Name
- Benzisothiazolinone
- Common Name
- BIT
- CAS Number
- 2634-33-5
- Category
- preservatives