Hydroxypropyl Guar Hydroxypropyltrimonium Chloride
AKA “Guar hydroxypropyltrimonium chloride, Hydroxypropyl guar cationic
Hair Conditioning
Ingredient Facts
Hydroxypropyl guar hydroxypropyltrimonium chloride
AKA: Hydroxypropyl guar cationic
Hair Conditioning · Antistatic · EWG: 1
Synthetic
Skin Conditioner
Hair Care
Clean
Guar gum, 2-hydroxypropyl 2-hydroxy-3-(trimethylammonio)propyl ether, chloride
CAS #
71329-50-5
Form
Powder
See origin →
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.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR