Cetyl/Lauryl/Myristyl Hydroxysultaine
AKA “Fatty Hydroxysultaine
Hair Conditioning
Ingredient Facts
Cetyl/lauryl/myristyl hydroxysultaine
AKA: Fatty Hydroxysultaine
Hair Conditioning · Hair Conditioning · EWG: 4
Synthetic
Skin Conditioner
Hair Care
Plant Oil
Not Clean
Betaines, C10-16-alkyl(2-hydroxy-3-sulfopropyl)dimethyl
CAS #
72869-77-3
See origin →
Functions
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Conditions Hair
Softens and detangles hair
Traditional Use
A modern synthetic amphoteric surfactant developed for cosmetics in the late 20th century. Created to provide gentle cleansing and conditioning properties in personal care products.
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Verified Jun 2026
Data: CosIng · EWG · CIR