Polyglyceryl-5 Trimyristate
AKA “Polyglyceryl-5 Trimyristate, PG-5 Trimyristate
Synthetic
Ingredient Facts
Polyglyceryl-5 trimyristate
AKA: PG-5 Trimyristate
Synthetic · Emollient · EWG: 4
Synthetic
Emollient
Cleanser
Emulsifier
Skin Conditioner
Synthetic
Clean
Polyglyceryl-5 Trimyristate is the triester of myristic acid and Polyglycerin-5 Science: Functions: Surfactant - Emulsifying Safety Ratings: CIR: Safe as used
CAS #
-
See origin →
Functions
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Emulsifier
Mixes Oil & Water
Traditional Use
Developed in the late 20th century as a synthetic emulsifier created by esterifying polyglycerin with myristic acid (a fatty acid derived from nutmeg or palm oil). Used in modern cosmetics as a gentler alternative to traditional synthetic emulsifiers.
Skin Types
all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe w/Qualifications
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