Hydroxypropyl Guar Hydroxypropyltrimonium Chloride

Hydroxypropyl Guar Hydroxypropyltrimonium Chloride molecular structure
molecular structure · PubChem
AKA: Hydroxypropyl guar cationic
Synthetic
Skin Conditioner
Hair Care
Clean
Guar gum, 2-hydroxypropyl 2-hydroxy-3-(trimethylammonio)propyl ether, chloride
CAS #
71329-50-5
Form
Powder
Functions
Antistatic
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Reduces Static
Conditions Hair
Reduces Inflammation
Locks In Moisture
Fights Bacteria
Reduces flyaways
Softens and detangles hair
Traditional Use
A quaternized derivative of hydroxypropyl guar developed in the late 20th century for use as a conditioning and thickening agent. Created to improve cationic properties and enhance hair and skin conditioning benefits.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR