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PEG-9 Dimethicone

What PEG-9 Dimethicone is & what it does

PEG-9 Dimethicone is a silicone-based ingredient made by modifying dimethicone with polyethylene glycol units, giving it both water-loving and oil-loving properties. This dual nature lets it work as an emulsifier and skin-conditioning agent, helping oil and water phases blend smoothly in a formula. In sunscreens and lotions it can also improve spreadability and contribute a soft, silky skin feel.

What does PEG-9 Dimethicone do in skincare?

PEG-9 Dimethicone is a water-dispersible silicone that works as an emulsifier and skin-conditioning agent. It helps oil and water phases blend smoothly and adds a soft, silky feel to sunscreens and lotions. It can also improve how evenly a product spreads on the skin.

Is PEG-9 Dimethicone safe?

PEG-9 Dimethicone is a commonly used silicone-based cosmetic ingredient that is generally considered well tolerated in skincare and sunscreen formulas. As with any ingredient, sensitivity is possible for some individuals. If your skin is easily irritated, patch testing a new product is a reasonable step.

Is PEG-9 Dimethicone vegan?

PEG-9 Dimethicone is a synthetic silicone derivative and is not made from animal sources, so it is typically considered vegan-friendly. Whether a finished product is fully vegan depends on its other ingredients and the brand's practices. Check the brand's labeling if vegan status matters to you.

Sunscreens with PEG-9 Dimethicone

We rate 19 sunscreens that contain it, showing the top 10 by overall score:

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