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Dimethyl Isosorbide

What Dimethyl Isosorbide is & what it does

Dimethyl Isosorbide is a synthetic solvent and penetration-enhancing ingredient derived from sorbitol-based isosorbide. Its main role is to dissolve other ingredients and help active compounds spread evenly and absorb into the skin surface. In sunscreens and serums it is used to improve texture and to keep UV filters or actives fully dissolved and uniform.

What does Dimethyl Isosorbide do in skincare?

Dimethyl Isosorbide acts as a solvent and penetration enhancer in cosmetic formulas. It dissolves other ingredients and helps active compounds spread evenly and absorb into the skin surface. In sunscreens and serums it is used to improve texture and to keep UV filters or actives fully dissolved and uniform.

Is Dimethyl Isosorbide natural or synthetic?

Dimethyl Isosorbide is a synthetic ingredient, derived from sorbitol-based isosorbide through chemical processing. Although its starting sugar alcohol can come from plant sources, the final solvent is a processed, synthetic material. This gives it consistent performance as a solvent and carrier.

Is Dimethyl Isosorbide safe?

Dimethyl Isosorbide is widely used in cosmetics as a solvent and is generally considered safe at the levels used in formulas. Because it can help other ingredients absorb, formulators choose its concentration with care. As with any ingredient, anyone with specific sensitivities should patch test and consult a professional.

Sunscreens with Dimethyl Isosorbide

We rate 11 sunscreens that contain it, showing the top 10 by overall score:

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