Does Signal Use Microplastics?
The short answer
Roughly half of the Signal products we could analyse listed at least one flagged synthetic polymer. Of the 60 Signal products on Open Beauty Facts with a readable ingredient list, 22 listed at least one flagged synthetic polymer — 37%. The one that came up most was PEG (Polyethylene Glycol), in 13 of them.
60
analysed
22
with a flag
37%
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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 60 of the 232 Signal 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 Signal ingredient lists
| Ingredient | Products | Why it's flagged |
|---|---|---|
| PEG (Polyethylene Glycol) | 13 of 60 | PEG / glycol |
| PEG-40 Hydrogenated Castor Oil | 9 of 60 | PEG / glycol |
Example products
Real entries from Open Beauty Facts, showing what the label lists.
Signal Dentifrice Expert Protection Haleine Pure
1 flagged ingredient
SIGNAL Bain de Bouche Integral 8 Anti-Plaque Antibactérien 500ml
1 flagged ingredient
Signal Bain de Bouche Gel Liquide Actif White Now Gold
1 flagged ingredient
Product images from Open Beauty Facts contributors, licensed CC BY-SA. Ingredient data under ODbL.
Check your actual Signal 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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