Common Name(s): Dpg,dipropylene glycol

CAS Number: 25265-71-8

DESCRIPTION

What It Does: Provides fragrance dilution and humectant conditioning from high-boiling diol.

Why It's Used: Standard fragrance carrier — dpg is the primary carrier for diluting fragrance compounds in cosmetics, providing the low-odour, non-volatile medium for fragrance delivery.

How It Works: High boiling point (~228°c) provides non-volatile slow-evaporation fragrance carrier. very low inherent odour for neutral fragrance dilution. humectant from two oh groups. good skin feel.

Typically Found In: Fragrance carriers,perfumes,humectant products

TECHNICAL DETAILS

Primary Category: Functional ingredient – humectant

Secondary Functions: Tewl reduction,skin plumping

Application Areas:

Typical Concentration Range: 1%–15%

SOURCING & ETHICS

Vegan Status: Conditional - supplier confirmation required

Halal Status: Unverified - supplier confirmation required

Source Notes: Synthetic or naturally derived. excellent aqueous solubility. [audit 2026-07-29 rev2: status downgraded on audit. determination requires shariah-panel sign-off.]

SKIN COMPATIBILITY

Irritancy Rating: 1/5 – very low

Comedogenicity Rating: 0/5 – non-comedogenic

Sensitivity Concerns: Non-irritating; suitable for all skin types.

Safe for Sensitive Skin: Yes

SAFETY & COMPATIBILITY

Safety Profile: Excellent safety profile. ewg score: 1.

Works Well With: Ceramides,emollients,occlusives,glycerin,hyaluronic acid

Avoid Combining With: No significant incompatibilities

SCIENTIFIC NOTE

Dpg's high boiling point provides a stable medium that prevents flash evaporation of fragrance compounds during formulation. on warm skin, fragrance compounds partition from dpg to atmosphere at controlled rate determined by individual vapour pressures and dpg partition coefficients.

Last Verified: 2026-03-12

Primary Sources: Cosing database,cir safety assessment