Ricinoleamidopropyl Betaine

AKA: MACKAM RA, 71850-81-2, 1-Propanaminium, N-(carboxymethyl)-3-(((9Z, 12R)-12-hydroxy-1-oxo-9-octadecen-1-yl)amino)-N, Inner salt, 1-PROPANAMINIUM, N-(CARBOXYMETHYL)-3-((12-HYDROXY-1-OXO-9-OCTADECENYL)AMINO)-N, HYDROXIDE, INNER SALT, N-(carboxymethyl)-3-[[(9Z, 12R)-12-hydroxy-1-oxo-9-octadecen-1-yl]amino]-N
Synthetic
Cleanser
Skin Conditioner
Hair Care
Plant Oil
Not Clean
1-Propanaminium, 3-amino-N-(carboxymethyl)-N,N-dimethyl-, N-castor-oil acyl derivs., hydroxides, inner salts
Formula
C25H48N2O4
Mol. Weight
440.70
CAS #
86089-12-5, 71850-81-2
Form
Liquid
Functions
Antistatic
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Hair Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Foam Boosting
Viscosity Controlling
Locks in moisture
Traditional Use
A synthetic zwitterionic surfactant derived from ricinoleic acid, developed in late 20th-century cosmetics as a mild cleansing and conditioning agent for shampoos and personal care products.
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
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing
🛡️Safety-assessed0 reviews
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR