POLYQUATERNIUM-59 is graded A (Safe) by Expert·ING, based on COSING regulatory data.
POLYQUATERNIUM-59
Safety grade: A
Polyquaternium-59 is a synthetic polymer that acts as a protective shield against harmful UV rays from the sun. It's designed to help prevent sun damage to your skin and hair.
This ingredient absorbs ultraviolet radiation to protect skin and hair from sun damage, premature aging, and UV-induced harm.
Graded using: COSING.
Last verified: May 26, 2026
Other UV Absorber ingredients
- BENZYL SALICYLATE — Grade C**
- TITANIUM DIOXIDE — Grade A**
- BUTYL METHOXYDIBENZOYLMETHANE — Grade B
- ETHYLHEXYL SALICYLATE — Grade B
- ETHYLHEXYL METHOXYCINNAMATE — Grade C
- ETHYLHEXYL TRIAZONE — Grade B
- OCTOCRYLENE — Grade D
- BIS-ETHYLHEXYLOXYPHENOL METHOXYPHENYL TRIAZINE — Grade B