Silicone

Shea Butter PEG-12 Dimethicone Esters

INCI: SHEA BUTTER PEG-12 DIMETHICONE ESTERS

Reviewed by Rosie · Last updated 14 Aug 2026

Also known as: Shea Butter Peg-12 Dimethicone Esters

A silicone-modified shea butter that conditions and smooths hair and skin

Best For Skin Types

All, Dry, Combination, Mature

Addresses

Dryness, Barrier repair

Usage Frequency

Daily

What Is Shea Butter PEG-12 Dimethicone Esters?

Shea Butter PEG-12 Dimethicone Esters is a modified form of shea butter, the fat extracted from shea tree nuts. In this version, shea butter has been chemically combined with a silicone (dimethicone) and a PEG (polyethylene glycol) polymer to create an ingredient that behaves differently from natural shea butter alone.

The modification makes it more easily dispersed in formulations and creates a smoother, lighter texture on the skin and hair compared to unmodified shea butter. It functions primarily as a conditioning agent, helping to coat and soften the skin's surface.

How It Works

This ingredient works through two mechanisms. The shea butter component provides lipids that sit on the skin's surface, forming an occlusive layer that slows water loss. The silicone and polymer components enhance spreadability and create a smooth film that helps even out skin texture and reduces shine.

Unlike natural shea butter, the chemical modification allows the ingredient to distribute more evenly across the skin without leaving a heavy, greasy residue, making it suitable for a broader range of formulation types.

Clinical Evidence & References

Research specifically on Shea Butter PEG-12 Dimethicone Esters is limited. However, shea butter itself has been studied for its emollient and barrier-supporting properties, with evidence suggesting it can help improve skin hydration and reduce transepidermal water loss.

The silicone and PEG modifications are widely used in cosmetics and are generally recognised as safe conditioning agents. Evidence on the specific modified form would benefit from further study to clarify its distinct benefits over unmodified alternatives.

How to Use

This ingredient is typically found in skincare products formulated by manufacturers rather than used as a standalone treatment. Follow the instructions on your product's packaging. If using multiple moisturising products, apply lighter textures first, then heavier ones, to avoid pilling or layering issues.

Safety & Precautions

Generally well-tolerated by most skin types. Those with very oily or acne-prone skin may find silicone-containing formulations comedogenic; patch testing is advisable if you are sensitive to silicones.

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