murphyPotassium Lauryl Phosphate
AKA: Potassium salt, EMALOX LPK, Dipotassium dodecyl phosphate, 39322-78-6, 19045-77-3
Synthetic
Cleanser
Clean
OriginTypically derived from coconut or palm kernel oils through extraction of fatty acids. Synthesized by phosphorylation of lauryl alcohol, introducing a phosphate group into the molecule.
Potassium salt of lauryl phosphate
Formula
C12H25K2O4P
Mol. Weight
342.49
CAS #
39322-78-6
Form
Powder
State
Liquid; Water or Solvent Wet Solid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Cleansing
Makes oil and water mix so dirt, makeup, and sunscreen can actually be washed away. The reason your face wash foams.
Cleansing Surfactant
Removes Impurities
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
1 study / 1 not sensitizing (CIR 671)
Eye Irritant in Testing
2 studies / 2 irritating / reactions moderate (CIR 671)
Skin Irritant in Testing
2 studies / 2 irritating (CIR 671)
Concentration Guide
CIR's newest survey reports no concentration of use.
CIR · report published 2019
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR