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Canonical INCI monograph

POLYMETHYLSILSESQUIOXANE

Not on the EU Annex III list

Polymer formed by hydrolysis and condensation of methyltrimethoxysilane

POLYMETHYLSILSESQUIOXANE is listed in the European Commission CosIng inventory under the functional category Opacifying, with CAS number 68554-70-1. In the free INCIDB sample it appears on 1 product label, reaching position 18 on Aqua Thermal - Baume Éveil Regard.

CAS REGISTRY NUMBER
68554-70-1
COSING FUNCTIONS
Opacifying

Sample products containing POLYMETHYLSILSESQUIOXANE

Label positions from the free INCIDB sample. A lower position means the ingredient is declared earlier, i.e. present in a higher proportion.

PRODUCT LABEL POSITION
Aqua Thermal - Baume Éveil Regard #18

Query POLYMETHYLSILSESQUIOXANE in the full snapshot

import pyarrow.parquet as pq

ingredients = pq.read_table('ingredients.parquet').to_pandas()
target = ingredients[ingredients['inci_name'] == "POLYMETHYLSILSESQUIOXANE"]
print(target[['ingredient_id', 'functions', 'cas_number', 'is_common_allergen']])

The complete snapshot covers 18,583 products. Coverage of each enrichment column is published, both per distinct name and weighted by label occurrence — see the coverage table.

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