Dimethicone
INCI: Dimethicone
Also known as: Polydimethylsiloxane, PDMS
EmollientsemollientsyntheticStrong evidencePregnancy safe
78
Skinlumis Rating
Comedogenic
1/5
Irritancy
0/5
Best applied
Both
Effective range
1%–30%
How It Works
A silicone polymer that smooths, blurs imperfections, and reduces TEWL, the workhorse of primers and silky moisturisers.
Forms a breathable hydrophobic film with high spreadability; reduces TEWL while feeling silky-light.
pH Range
4.0–8.0
Benefits
- Smooth, silky feel
- Blurs pores
- Lightweight occlusion
- Reduces TEWL
Proven For
What the evidence supports.
Surface texturePore appearance
Best For
- All skin types
Avoid If
No notable contraindications reported.
Layering Order
8/10
Final occlusive/SPF layer.
Max Safe Concentration
100%
Concentration range in well-formulated products: 1%–30%
Seasonal Use
Year-round.
For Estheticians & Professionals
The myth that dimethicone 'suffocates' skin is incorrect, it's gas-permeable.
Pairs Well With
Conflicts With
No flagged conflicts. Still, patch-test new actives.
Your Skin Compatibility
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