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C26-28 Alkyl Methicone
AKA “Silicone, Alkyl Methicone”
Skin Conditioning
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Ingredient Facts
C26-28 alkyl methicone
AKA: Silicone
Skin Conditioning · Skin Conditioning · EWG: 4
Synthetic
Skin Conditioner
Silicone
Not Clean
Siloxanes and Silicones, C26-28 alkyl methyl, trimethylsilyl terminated
Form
Liquid
See origin →
Functions
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A silicone derivative created for the cosmetics industry in the modern era. Used to improve texture, durability, and skin feel in premium formulations.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
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Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Structural Similarity-Induced Inter-Component Interaction in Silicone Polymer-Based Composite Sunscreen Film for Enhanced UV Protection.
Chen Y, Xu H, Liu Y, Fu Q, Zhang P et al.
Polymers, 2024
→
Safety Assessment of Polysilicone-11 as Used in Cosmetics.
Cherian P, Bergfeld WF, Belsito DV, Cohen DE, Klaassen CD et al.
International journal of toxicology, 2024
→
Safety Assessment of Polysilicone-11 as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
→
C20-24 Alkyl Methicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C24-28 Alkyl Methicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C26-28 Alkyl Methicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C30-45 Alkyl Methicone
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
Polysilicone-11
European Commission
EU Cosmetic Ingredient Database (CosIng)
→
C24-28 Alkyl Methicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
C30-45 Alkyl Methicone
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Polysilicone-11
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
→
Addressing the Structural Organization of Silicone Alternatives in Formulations by Molecular Dynamics Simulations and a Novel Equilibration Protocol.
Ferreira T, Loureiro A, Noro J, Cavaco-Paulo A, Castro TG
Polymers, 2023
→
Effects of silicone emulsifiers on in vitro skin permeation of sunscreens from cosmetic emulsions.
Montenegro L, Paolino D, Puglisi G
Journal of cosmetic science, 2004
→
Design and Characterization of Silicone and Surfactant Based Systems for Topical Drug Delivery.
Oyafuso MH, Carvalho FC, Chiavacci LA, Gremião MP, Chorilli M
Journal of nanoscience and nanotechnology, 2015
→
Design and Characterization of Silicone and Surfactant Based Systems for Topical Drug Delivery.
Oyafuso MH, Carvalho FC, Chiavacci LA, Gremião MP, Chorilli M
Journal of nanoscience and nanotechnology, 2015
→
Verified Jun 2026
Data: CosIng · EWG · CIR