Polyurethane-16

AKA: PU-16

Synthetic

Occlusive

Not Clean

OriginSynthesized from polyols and isocyanates, which are petroleum-derived organic compounds. Produced through step-growth polymerization, where isocyanate and polyol reactants chemically bond under controlled conditions.

Crosslinked condensation polymer of 2 moles hexamethylene diisocyanate with 1 mole polycaprolactonetriol

CAS #

-

Form

Powder

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

Functions

Anticaking

Film Forming

Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.

Prevents Clumping

Creates Protective Barrier

Creates protective layer

The paper trail

🔬Peer-reviewednone on file

⚖️Regulatory1 listing →

🛡️Safety-assessed1 review →

Counts, not a verdict. A listing isn't a study. The trail, you decide.

EWG

CIR

Safe as used

Pregnancy

Yes

Concentration Guide

Leave-on0.98%

Rinse-offNot reported

0%50%100%

CIR reported use · 2016 survey

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Verified Jun 2026

Data: CosIng · EWG · CIR