C30-45 Alkyl Methicone

What C30-45 Alkyl Methicone is & what it does

C30-45 Alkyl Methicone is a silicone-based wax made by attaching long alkyl chains to a methicone (dimethicone-type) backbone. In sunscreens and long-wear cosmetics it acts as a film former and texture agent that helps build a smooth, water-resistant layer. A notable property is its waxy, semi-solid character, which supports the structure and wear of the product.

What does C30-45 Alkyl Methicone do in skincare?

C30-45 Alkyl Methicone is a silicone wax that acts as a film former and texture agent. In sunscreens and long-wear cosmetics it helps build a smooth, water-resistant layer and supports the product's structure. It mainly shapes the feel and durability of the formula.

Is C30-45 Alkyl Methicone safe?

It is a silicone-based wax used in cosmetics, and silicones of this type are generally considered well tolerated and non-reactive on skin. It is not a commonly reported irritant. People with very sensitive skin can patch test a new product as a precaution.

Is C30-45 Alkyl Methicone natural or synthetic?

It is synthetic. The ingredient is a silicone (methicone) modified with long alkyl chains to give it a waxy character. It is manufactured rather than sourced from a plant or animal.

Sunscreens with C30-45 Alkyl Methicone

We rate 22 sunscreens that contain it, showing the top 10 by overall score:

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