murphyVP/VA Copolymer
molecular structure · PubChem
Plant-Derived
Occlusive
Clean
A synthetic ingredient that creates a flexible, protective layer on hair and skin to hold styles in place and keep products from separating.
Functions
Binding
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Hair Fixing
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
CIR Safety Findings
Not a Sensitizer
5 studies / 5 not sensitizing (CIR 224 and 764)
Mixed Eye Irritation Results
11 studies / 8 irritating / 1 mixed / 2 not irritating / reactions minimal to severe (CIR 224 and 764)
Mixed Skin Irritation Results
15 studies / 4 irritating / 3 mixed / 8 not irritating / reactions minimal to moderate (CIR 224 and 764)
Concentration Guide
Leave-on0.001–10%
Rinse-off0.07–44%
0%50%100%
CIR reported use · 2017 survey
Verified Jun 2026
Data: CosIng