Lactoglobulin

AKA: 9045-23-2, Lactoglobulins, (2R, 4R)-2-methyl-4-[(4-octylphenyl)methoxy]pyrrolidine;hydrochloride, |A-Lactoglobulin, C20H34ClNO, 2-methyl-4-((4-octylbenzyl)oxy)pyrrolidine hydrochloride
Synthetic
Skin Conditioner
Hair Care
Amino Acid
Clean
Lactoglobulins, .beta.-
Formula
C20H34ClNO
Mol. Weight
339.90
CAS #
9045-23-2
Form
Powder
State
Powder; [Sigma-Aldrich MSDS]
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.
Skin Conditioning
A catch-all term for ingredients that improve how skin looks and feels — softer, smoother, more supple. The workhorse behind most moisturizers.
Locks in moisture
Traditional Use
Lactoglobulin is a whey protein first identified in the late 19th century. Used in 20th-century cosmetics for its protein-conditioning and skin-barrier supporting properties.
EWG
1
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
Dryness
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR