Which microplastic ingredients does Le Petit Marseillais use most?

Polyquaternium-7 (in 7 of 35), Carbomer (in 2 of 35), Acrylates Copolymer (in 2 of 35), Styrene/Acrylates Copolymer (in 2 of 35), Polyquaternium-10 (in 1 of 35).

Does Le Petit Marseillais Use Microplastics?

Last updated: July 30, 2026

The short answer

Roughly half of the Le Petit Marseillais products we could analyse listed at least one flagged synthetic polymer. Of the 35 Le Petit Marseillais products on Open Beauty Facts with a readable ingredient list, 13 listed at least one flagged synthetic polymer — 37%. The one that came up most was Polyquaternium-7, in 7 of them.

analysed

with a flag

37%

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 35 of the 200 Le Petit Marseillais 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 Le Petit Marseillais ingredient lists

Ingredient	Products	Why it's flagged
Polyquaternium-7	7 of 35	Acrylate / vinyl polymer
Carbomer	2 of 35	Acrylate / vinyl polymer
Acrylates Copolymer	2 of 35	Acrylate / vinyl polymer
Styrene/Acrylates Copolymer	2 of 35	Acrylate / vinyl polymer
Polyquaternium-10	1 of 35	Acrylate / vinyl polymer
Polyquaternium	1 of 35	Acrylate / vinyl polymer
Amodimethicone	1 of 35	Silicone
Butylphenyl Methylpropional (Lilial)	1 of 35	Plasticiser / chemical of concern

Example products

Real entries from Open Beauty Facts, showing what the label lists.

Shampooing Reflets Bruns

4 flagged ingredients

Shampoing pour cheveux colorés

4 flagged ingredients

Douche et bain crème hypoallergénique sans savon - Seve d'aloe vera et fleur d'amandier

3 flagged ingredients

Product images from Open Beauty Facts contributors, licensed CC BY-SA. Ingredient data under ODbL.

Check your actual Le Petit Marseillais 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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Frequently Asked Questions

Does Le Petit Marseillais use microplastics?

Roughly half of the Le Petit Marseillais products we could analyse listed at least one flagged synthetic polymer. Of 35 Le Petit Marseillais products with a readable ingredient list on Open Beauty Facts, 13 listed at least one flagged synthetic polymer (37%). This is label data, not lab testing, and a flagged ingredient is not automatically harmful.

Which ingredients are flagged in Le Petit Marseillais products?

Most frequently: Polyquaternium-7 (7 of 35), Carbomer (2 of 35), Acrylates Copolymer (2 of 35), Styrene/Acrylates Copolymer (2 of 35), Polyquaternium-10 (1 of 35). Each has its own page explaining what it is and how concerned to be.

Is Le Petit Marseillais safe to use?

That is not a question label data can answer, and we will not pretend otherwise. This page reports which synthetic polymers appear in ingredient lists. Whether a given product suits you depends on the ingredient, its concentration, the product type, and your own skin and priorities. Use the per-ingredient pages to judge severity rather than treating any flag as a verdict.

How was this measured?

Products were pulled from the Open Beauty Facts API, filtered to those with a usable ingredient list, and every INCI token matched against our flagged ingredient database. Matching is token-level: an ingredient list is split on commas and each token yields at most one ingredient, so "dimethicone" is never also counted as "methicone". Snapshot 2026-07-31.

Brands with a similar profile

Signal

37% of 60 analysed

Schwarzkopf

38% of 72 analysed

Colgate

38% of 47 analysed

Uriage

39% of 31 analysed

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