Cyclopentasiloxane

Also known as: cyclopentasiloxane

CYC

3/10

Concern level

Low concern

Cyclopentasiloxane is a silicone compound used for its smoothing and conditioning properties, providing a silky feel to products.

Pore-clogging

Non-comedogenic

Pregnancy

Safe

EWG Score

3/10

Regulatory

No data

Benefits

Moisturizing

Concerns

Silicone

Chemical Properties

Molecular Weight

222.38 g/mol

pH Range

5.00 - 7.00

Typical Concentration

1.00% - 20.00%

CAS Number: 63148-65-2

Skin Type Compatibility

dry skin6/10

oily skin5/10

sensitive skin4/10

acne prone3/10

mature skin5/10

normal skin6/10

Risks & Warnings

Generally safe; may cause buildup on hair or skin with excessive use.

Vegan Cruelty-Free

Found In Products

CLINIQUE

All About Eyes™ Eye Cream with Vitamin C

Jack Black

Beard Oil

La Mer

The Concentrate Serum for Barrier Repair and Hydration

Paula's Choice

RESIST Advanced Replenishing Toner with Hyaluronic Acid

Lancôme

Bi-Facil Double-Action Eye Makeup Remover

SEPHORA COLLECTION

Waterproof Eye Makeup Remover

Bobbi Brown

Vitamin Enriched Face Base Moisturizer & Primer with Vitamin C + Hyaluronic Acid

Anastasia Beverly Hills

Hydrating Oil