murphyHydroxypropyl Guar
molecular structure · PubChem
AKA: Guar gum hydroxypropyl derivative
Synthetic
Cleanser
Occlusive
Emulsifier
Clean
OriginDerived from guar beans (Cyamopsis tetragonoloba), a legume crop native to India and Pakistan. Produced through chemical hydroxypropylation of guar gum using propylene oxide.
Guar gum, 2-hydroxypropyl ether, depolymd.
CAS #
68442-94-4, 39421-75-5
Form
Powder
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Antistatic
Binding
Emulsion Stabilising
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Viscosity Controlling
Moisturizing
Improves Elasticity
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Skin Irritant
1 study / 1 not irritating (CIR 600)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 600)
Concentration Guide
Leave-on0.05–2%
Rinse-off0.1–93%
0%50%100%
CIR reported use · 2011 survey
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR