murphyLysine HCl
AKA: L-Lysine hydrochloride, 657-27-2, L-Lysine monohydrochloride, Lysine hydrochloride, L-Lysine, Monohydrochloride, L-(+)-Lysine Monohydrochloride
Synthetic
Skin Conditioner
Hair Care
Amino Acid
Not Clean
OriginLysine HCl is synthesized from L-lysine, a naturally occurring amino acid produced through bacterial fermentation. The free base lysine is then converted to its hydrochloride salt form through acid treatment.
L-lysine hydrochloride is the hydrochloride salt of L-lysine. It contains a L-lysine.
Formula
C6H15ClN2O2
Mol. Weight
182.65
CAS #
657-27-2, 10098-89-2, 22834-80-6
Form
Powder
State
Solid; [Merck Index] White powder; [Sigma-Aldrich MSDS]
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
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
The paper trail
🔬Peer-reviewed1 paper →
⚖️Regulatory1 listing →
🛡️Safety-assessed1 review →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR