murphySodium Lauroyl Silk Amino Acids
AKA: Silk Amino Acid Surfactant, Silk Protein Cleanser
Synthetic
Cleanser
Skin Conditioner
Hair Care
Amino Acid
Acid
Clean
Origin-Derived (silkworm)
Protein hydrolyzates, silk, lauroyl, sodium salts
CAS #
169590-94-7
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
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.
Locks in moisture
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 Skin Irritant
1 study / 1 not irritating (CIR 645)
Not a Sensitizer
1 study / 1 not sensitizing (CIR 645)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 645)
Concentration Guide
CIR lists it as not reported to be in use.
CIR · report published 2017
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR