Ingredient deep-dive
Dimethicone: Is It a Microplastic?
Silicone polymer (polydimethylsiloxane). Not the same as solid microplastic but classed as a synthetic polymer; EU is consulting on tighter limits.
Where it appears
- Hair conditioner and serum (for shine)
- Primer and foundation (for slip)
- Moisturizers
- Anti-aging creams
Regulatory status (2026)
European Union
D4 and D5 cyclic siloxanes restricted; linear dimethicone (PDMS) under consultation for tighter limits.
United States
No federal restriction; FDA approves for cosmetic and OTC use.
Cleaner alternatives
- Squalane (plant-derived)
- Jojoba oil
- Argan oil for slip
Use the app
Scan any product for Dimethicone in 5 seconds
The MicroPlastics iOS app flags this ingredient and 24 others instantly. Paste a label into the free web ingredient checker first if you want a no-install scan.
Download on the App StoreDimethicone — common questions
Is Dimethicone a microplastic?
Is Dimethicone banned?
What can I use instead of Dimethicone?
What products contain Dimethicone?
Related ingredients
Cyclomethicone / Cyclopentasiloxane
Silicone · Medium concern
Cyclic siloxanes. D4 and D5 variants are EU-restricted in rinse-off products.
Read moreTrimethicone / Phenyl Trimethicone
Silicone · Low concern
Silicone polymer variant used for slip and shine.
Read morePolysilicone-X
Silicone · Medium concern
Synthetic silicone polymer family used as film-formers in long-wear makeup.
Read more