Does La Roche-Posay Use Microplastics?
The short answer
Most La Roche-Posay products we could analyse listed at least one flagged synthetic polymer. Of the 47 La Roche-Posay products on Open Beauty Facts with a readable ingredient list, 30 listed at least one flagged synthetic polymer — 64%. The one that came up most was Dimethicone, in 20 of them.
47
analysed
30
with a flag
64%
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What this is. Ingredient-label data from Open Beauty Facts (snapshot 2026-07-31), not laboratory testing. Coverage is crowdsourced, partial and Europe-weighted, so this is 47 of the 119 La Roche-Posay entries in that database, and US formulations often differ. A flagged ingredient is not automatically harmful — a gel thickener and a solid microbead are both synthetic polymers and are not the same risk.
What comes up most in La Roche-Posay ingredient lists
| Ingredient | Products | Why it's flagged |
|---|---|---|
| Dimethicone | 20 of 47 | Silicone |
| PEG (Polyethylene Glycol) | 14 of 47 | PEG / glycol |
| PEG-100 Stearate | 10 of 47 | PEG / glycol |
| Hydrogenated Polyisobutene | 5 of 47 | Microplastic polymer |
| Dimethiconol | 5 of 47 | Silicone |
| Silica Dimethyl Silylate | 5 of 47 | Silicone |
| Acrylates Copolymer | 4 of 47 | Acrylate / vinyl polymer |
| Carbomer | 4 of 47 | Acrylate / vinyl polymer |
Example products
Real entries from Open Beauty Facts, showing what the label lists.
Effaclar Duo (+) Unifiant Teinte Light
6 flagged ingredients
Cicaplast Baume B5 SPF50
6 flagged ingredients
Anthelios XL 50+ ultra-léger
5 flagged ingredients
Product images from Open Beauty Facts contributors, licensed CC BY-SA. Ingredient data under ODbL.
Check your actual La Roche-Posay product
Brand averages hide a lot — formulations differ by product and by market. Paste your label into the free ingredient checker, or scan the bottle in the app for a 0–100 score that also weighs the packaging.
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