Common Name(s): Fluoro c2-8 alkyldimethicone,fluorosilicone emollient,short-chain fluorinated dimethicone
DESCRIPTION
What It Does: Makes skin feel silky while helping makeup resist water and oil.
Why It's Used: Selected for providing the sensory benefits of silicone emollients combined with fluorine-based water and oil repellency; the c2–c8 chain range is intended to reduce pfas persistence concerns of longer chains.
How It Works: Perfluoroalkyl c2–c8 chains on dimethicone provide omniphobic surface properties; silicone backbone delivers characteristic silky texture; combined effect gives long-wear and sebum-resistant skin feel.
Typically Found In: Long-wear foundations,color cosmetics,primers,silicone-based emollients
TECHNICAL DETAILS
Primary Category: Functional ingredient – emollient
Secondary Functions: Film forming,water/oil repellency,skin conditioning
Application Areas:
Facial Skincare
Body Care
Hair Care
Beard Care
Color Cosmetics (Makeup)
Dietary/Oral Supplements
Typical Concentration Range: 0.5%–5%
SOURCING & ETHICS
Vegan Status: Conditional - supplier confirmation required
Halal Status: Yes
Source Notes: Fluorinated silicone; synthetic; short-chain pfas considerations apply. [audit 2026-07-29 rev2: status downgraded on audit. determination requires shariah-panel sign-off.]
SKIN COMPATIBILITY
Irritancy Rating: 1/5 – very low
Comedogenicity Rating: 1/5 – low
Sensitivity Concerns: Short-chain pfas (c2–c8) class: reduced bioaccumulation versus long-chain c8+; evolving regulatory position. monitor eu pfas restriction updates.
Safe for Sensitive Skin: Conditional – pfas regulatory status evolving
SAFETY & COMPATIBILITY
Safety Profile: Moderate safety profile. short-chain fluorinated silicone; lower persistence concerns than c8+ analogs. ewg score: 2–4.
Works Well With: Dimethicone,cyclopentasiloxane,mineral pigments,silicone elastomers
Avoid Combining With: Avoid in clean beauty/pfas-free certified formulations
SCIENTIFIC NOTE
Short-chain fluorinated dimethicones represent the cosmetic industry's transitional approach to achieving omniphobic effects with lower environmental persistence than traditional pfos/pfoa-related c8+ pfas; regulatory future of short-chain pfas is still developing under eu reach.
Last Verified: 2026-03-27
Primary Sources: Cosing database,eu reach pfas dossier,inci dictionary