Ingredient glossary
Cyclopentasiloxane
INCI: Cyclopentasiloxane · Also: D5
Solid and proven
Does Cyclopentasiloxane clash with what you already use? Check it →A genuinely useful ingredient with real evidence behind it, not hype.
What it does
- softening
- volatile texture
moderate evidenceWidely used as a carrier for actives and heavier silicones with low irritation and low comedogenicity in most users.
On a label: usually effective at 2-20%.
Who it's for, and who should skip it
Tends to suit
- oily
- combo
- normal
Approach with care
- very dry needing occlusive
- Clogs poresLow
- Irritation riskLow
Plays well with
- other silicones
- humectants
This, for every label you own
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Educational information about a cosmetic ingredient, not medical advice.