Ingredient deep-dive

PEG-12 Dimethicone: Is It a Microplastic?

Low concernPEG / glycol

Water-dispersible silicone made by attaching PEG chains to a siloxane. Neither part is a microplastic, but it inherits the ethoxylate purity question.

Where it appears

Conditioners
Water-based serums
Cleansing products

Regulatory status (2026)

European Union

Permitted with dioxane purity limits.

United States

No federal restriction.

Cleaner alternatives

Behentrimonium methosulfate
Plant-oil conditioning

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PEG-12 Dimethicone, common questions

Is PEG-12 Dimethicone a microplastic?

Borderline. Water-dispersible silicone made by attaching PEG chains to a siloxane. Neither part is a microplastic, but it inherits the ethoxylate purity question.

Is PEG-12 Dimethicone banned?

EU: Permitted with dioxane purity limits. US: No federal restriction.

What can I use instead of PEG-12 Dimethicone?

Cleaner alternatives include: Behentrimonium methosulfate; Plant-oil conditioning.

What products contain PEG-12 Dimethicone?

Commonly found in: Conditioners; Water-based serums; Cleansing products.

Related ingredients

PEG (Polyethylene Glycol)

PEG / glycol · Medium concern

Synthetic polymer / surfactant family. Often contaminated with 1,4-dioxane during manufacture.

PPG (Polypropylene Glycol)