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Dimethyl Isosorbide

Solvent-penetrator from sorbitol — a clear volatile liquid that significantly improves the delivery of active ingredients through the stratum corneum of the skin. Indispensable in formulas with retinol, vitamin C, and peptides to enhance their effectiveness.

penetration enhancerSolventActive deliverySorbitol derivative

✓ Safe

Comedogenic Rating

0/5

Irritation Potential

0/5

What is it?

Dimethyl Isosorbide — dimethyl ether of 1,4:3,6-dianhydro-D-glucitol (isosorbide). Isosorbide is a derivative of sorbitol obtained from plant sugars (corn, wheat). Molecular weight ~146 Da. A colorless water-soluble liquid with a characteristic odor. Volatile: evaporates quickly after application. Unique polar structure: dissolves both hydrophilic and some lipophilic actives. Approved for cosmetic and pharmaceutical use in the EU and USA. Obtained from renewable plant raw materials — considered green/sustainable.

Serums with retinol and retinoids, vitamin C formulas for enhanced penetration, peptide products with improved delivery, anti-aging concentrates, and boosters.

Key Benefits

✦

Enhanced penetration of active ingredients through the skin

DMI — one of the most effective cosmetic penetration enhancers: increases the transport of actives by 2–10 times depending on the molecule. Mechanism: interacts with the lipids of the stratum corneum, temporarily increasing their fluidity and permeability. Especially effective for: retinol (improves dermis-targeting), ascorbic acid (increases stability in aqueous formulas), peptides (large molecules that poorly penetrate without assistance).

◈

Universal solvent for complex formulas

DMI is unique in that it dissolves both water-soluble (ascorbic acid, niacinamide) and lipophilic (retinol, carotenoids, some UV filters) components. This allows for the preparation of stable clear formulas without excessive oils or surfactants. Particularly valuable in "waterless" or "low-water" formulas: can act as the main solvent instead of water.

✧

Fast absorption and clean feel

Due to the volatility, DMI evaporates quickly after application, leaving no greasy or sticky residue. This gives products with DMI a characteristic "clean, fast-absorbing" feel — especially noticeable in aqueous serums and boosters. After DMI evaporates, active ingredients remain on the skin in increased concentration near the surface of the dermis.

Suitable for

Normal and mature skinFormulas with active ingredientsAnti-aging products

Main Actions

✓ Enhanced penetration of actives✓ Universal solvent✓ Fast absorption

DMI in retinol formulas

Retinol — fat-soluble, unstable, poorly penetrates on its own. DMI addresses both issues: dissolves retinol (despite lipophilicity) and sharply increases its transcutaneous transport. Result: lower concentration of retinol with the same effectiveness → less irritation. This is why premium retinol formulas (SkinCeuticals, Paula's Choice) contain DMI or its analogs. When choosing a retinol product — the presence of DMI is a positive signal of effectiveness.

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