Best For Skin Types
All
Usage Frequency
Daily
What Is PEG-12 Dimethicone Crosspolymer?
PEG-12 Dimethicone Crosspolymer is a silicone-based polymer derived from dimethicone (a type of silicone oil) that has been chemically modified with polyethylene glycol (PEG) chains and cross-linked into a network structure. This modification makes it water-dispersible, allowing it to work effectively in water-based and emulsified skincare formulations.
In skincare products, it functions primarily as an emulsifier and stabiliser, helping to bind oil and water phases together and maintain product consistency over time. It also acts as a viscosity controller, adjusting the thickness and spreadability of creams, serums and lotions.
How It Works
PEG-12 Dimethicone Crosspolymer works by positioning itself at the interface between oil and water molecules in a formulation. Its structure contains both hydrophobic (water-repelling) and hydrophilic (water-attracting) regions, allowing it to hold these normally incompatible phases in suspension and prevent them from separating.
On the skin, the silicone component creates a light protective layer that improves product glide and reduces friction, whilst the polymer network helps maintain even distribution of active ingredients throughout the formulation.
Clinical Evidence & References
Evidence specifically evaluating PEG-12 Dimethicone Crosspolymer in skincare is limited. Most research on this ingredient focuses on its chemical stability and emulsifying performance in cosmetic formulations rather than direct skin effects.
Silicones more broadly have a long history of use in cosmetics and are generally regarded as well-tolerated on skin. Any benefits from this ingredient are likely to be indirect—stemming from improved product stability and delivery of other active ingredients—rather than from inherent biological activity.
How to Use
This ingredient is a formulation component rather than an active ingredient you apply in isolation. Use any product containing it as directed on the label. If you use multiple products, apply lighter textures (serums) before heavier ones (creams). There is no additional optimisation needed beyond following standard skincare routines.
Safety & Precautions
Frequently Asked Questions
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A silicone polymer that stabilises texture and controls viscosity in skincare formulations
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