Diphenylsiloxy Phenyl Trimethicone
AKA “Phenyl Silicone, Silicone Resin
Synthetic
Ingredient Facts
Diphenylsiloxy phenyl trimethicone
AKA: Phenyl Silicone, Silicone Resin
Synthetic · Antifoaming · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Synthetic
Clean
Silicones and siloxanes, diphenyl, trimethylsilyloxy phenyl, trimethylsilyl terminated Science: Functions: Antifoaming, Hair Conditioning, Skin Conditioning Safety Ratings: CIR: Safe as used
Form
Liquid
See origin →
Functions
Antifoaming
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
A phenyl-substituted silicone polymer developed in the late 20th century for cosmetics. Designed to provide improved water resistance and enhanced sensory properties compared to standard dimethicone.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Feb 2026
Data: CosIng · EWG · CIR