Ingredient · dataset v56
Hydroxypropyl Methylcellulose Stearoxy Ether and fungal acne
No known trigger
Why it's not a known trigger
A cellulose ether carrying a C18 stearyl group by ether link only; with no ester to cut, the ether-only logic of the v20 ethoxylate rule extends here.
Blocked 1 calibration sunscreen.
Evidence strength
Judged neutral — no trigger evidence
Function
Polymer
Checked products with this ingredient (1)
Product types: Sunscreens
Sunscreens (1)
Related polymer
- Acrylates Copolymer — No known trigger
- Acrylates Crosspolymer-4 — No known trigger
- Acrylates/C10-30 Alkyl Acrylate Crosspolymer — No known trigger
- Acrylates/Dimethicone Copolymer — No known trigger
- Acrylates/Octylacrylamide Copolymer — No known trigger
- Ammonium Acrylates Copolymer — No known trigger
- Ammonium Acryloyldimethyltaurate/Beheneth-25 Methacrylate Crosspolymer — No known trigger
- Ammonium Acryloyldimethyltaurate/VP Copolymer — No known trigger
Sources
EU CosIng database — search the INCI name
Last reviewed: 2026-10-13 (dataset v56).
Questions
Does Hydroxypropyl Methylcellulose Stearoxy Ether trigger fungal acne?
No known trigger: A cellulose ether carrying a C18 stearyl group by ether link only; with no ester to cut, the ether-only logic of the v20 ethoxylate rule extends here.
Does Hydroxypropyl Methylcellulose Stearoxy Ether feed Malassezia?
No known link: Hydroxypropyl Methylcellulose Stearoxy Ether is judged with no known trigger. One screened ingredient is not a product verdict — when in doubt, ask a dermatologist.
Is this medical advice?
No. We screen ingredient lists; we never diagnose, treat, or certify products. When in doubt, ask a dermatologist.
Check a full list containing Hydroxypropyl Methylcellulose Stearoxy Ether →
Not medical advice: we screen ingredient lists for potential triggers — we never diagnose, treat, or certify products. Dataset v56.