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Tuesday, October 13, 2026Index last updated Oct 9
The Index  ·  Solvent / delivery aid

Dimethyl Isosorbide

Dimethyl Isosorbide

Sugar-derived solvent used to dissolve and help deliver polar actives.

FunctionalFunctional ingredient, not graded for skin benefits
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Written byTheSkindex Desk
Reviewed byNot yet reviewed
Last updated5 Oct 2026
Sources2 cited

Sugar-derived solvent used to dissolve and help deliver polar actives.

What it does

Often paired with niacinamide or zinc salts to improve clarity and delivery feel.

The evidence

Functional ingredient (not graded for skin benefits): Useful solvent; clinical “penetration” claims are formula-dependent. Credible chemical identity and cosmetic-use context come from CIR/SCCS/manufacturer INCI definitions and databases such as SpecialChem/PubChem[1].

How to use it

Expect this as a supporting INCI line item unless labeled as a featured active.

What it does in the formula

Functional ingredient — not graded for skin benefits
Sugar-derived solvent used to dissolve and help deliver polar actives.[1]

Safety & limits

Source and region, always
all — Used in cosmetics within conventional leave-on/rinse-off levels; see cited safety literature.[1] CA US EU UK

Sources · 2

Numbered as cited in the text
  1. [1]SpecialChem. SpecialChem INCI profile: Dimethyl Isosorbide. SpecialChem (2024)other
  2. [2]Cosmetic Ingredient Review. Isosorbide derivatives context. CIR (2015)regulator

Revision history

18 Sept 2026Drafted by botTheSkindex Desk