murphyGlyceryl Rosinate
molecular structure · PubChem
AKA: Glyceryl rosin ester, Rosin glyceride
Synthetic
Occlusive
Fragrance
Not Clean
OriginProduced from rosin, a byproduct of pine tree resin processing, combined with glycerin through chemical reaction. Synthesized via esterification of rosin acids with glycerol under controlled heat and catalytic conditions.
Resin acids and Rosin acids, esters with glycerol
CAS #
65997-13-9, 8050-31-5
Form
Wax
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Allergen Warning
⚠️ Colophonium (Rosin)
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Perfuming
Added for scent. Can be natural or synthetic. Common irritant and allergen — one of the top reasons people react to products.
Moisturizing
Strengthens Barrier
Anti-Inflammatory
Creates protective layer
Adds pleasant scent
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed4 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Comedogenic
Animal test found no comedogenicity in the CIR safety assessment (CIR 344)
Not Phototoxic
Product formulation test found no phototoxicity in the CIR safety assessment (CIR 320 and 706)
Mixed Eye Irritation Results
2 studies / 1 irritating / 1 not irritating / reactions slight (CIR 706)
Mixed Skin Irritation Results
6 studies / 2 irritating / 1 mixed / 3 not irritating / reactions severe (CIR 320 and 344 and 706)
Mixed Sensitization Results
9 studies / 1 sensitizing / 2 mixed / 6 not sensitizing / plus 1 case report (CIR 320 and 344 and 706)
Concentration Guide
Leave-on0.018–8%
Rinse-off2.6–96%
0%50%100%
CIR reported use · 2014 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR