Cyclopentasiloxane
INCI: Cyclopentasiloxane
Also known as: D5
EmollientsemollientsyntheticModerate evidencePregnancy safe
65
Skinlumis Rating
Comedogenic
1/5
Irritancy
0/5
Best applied
Both
Effective range
1%–50%
How It Works
A volatile cyclic silicone that evaporates after application, leaving a silky residue. Used as a carrier and skinfeel modifier.
Spreads ingredients evenly then evaporates, depositing other emollients in a smooth layer.
pH Range
4.0–8.0
Benefits
- Light, dry feel
- Spreads actives evenly
- Non-occlusive after evaporation
Proven For
What the evidence supports.
Texture preference
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%–50%
Seasonal Use
Year-round.
For Estheticians & Professionals
EU restrictions limit D5 in rinse-off; leave-on facial products are unaffected.
Pairs Well With
Conflicts With
No flagged conflicts. Still, patch-test new actives.
Your Skin Compatibility
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