Pentelyne Glycol

PEN

8/10

Concern level

High concern

Pentylene Glycol is a C5 diol used in cosmetics as a humectant, solvent, and preservative booster. It helps increase water content in formulas, improve sensorial feel, and can support product preservation by lowering water activity and enhancing antimicrobial systems.

Pore-clogging

Non-comedogenic

Pregnancy

Safe

Regulatory

No data

Benefits

MoisturizingSoothingSupports Barrier Function

Chemical Properties

Molecular Weight

104.15 g/mol

pH Range

4.00 - 8.50

Typical Concentration

1.00% - 10.00%

CAS Number: 111-29-5

Skin Type Compatibility

dry skin9/10

oily skin8/10

sensitive skin7/10

acne prone8/10

mature skin8/10

normal skin9/10

Interactions

incompatible with: No major ingredient incompatibilities are established. In practice it is often used alongside preservatives, humectants, and active ingredients.

Risks & Warnings

Generally low risk, but may cause mild irritation or stinging in very sensitive or compromised skin at higher use levels. Rare contact sensitivity is possible. Not known as a major comedogen.

Vegan Cruelty-Free

Found In Products

MARA