murphyHydrolyzed Milk Protein
molecular structure · PubChem
AKA: Milk Protein Hydrolysate, Hydrolyzed Whey Protein
Synthetic
Skin Conditioner
Hair Care
Clean
Protein hydrolyzates, milk. Substance obtained by acidic, alkaline, or enzymatic hydrolysis of milk composed primarily of amino acids, peptides, and proteins. It may contain impurities consisting chiefly of carbohydrates and lipids along with smaller quantities of miscellaneous organic substances of biological origin.
CAS #
92797-39-2
Form
Powder
State
Solid
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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
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.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not Phototoxic
Human test found no phototoxicity in the CIR safety assessment (CIR 739)
Not a Sensitizer
7 studies / 7 not sensitizing / plus 1 case report (CIR 739)
Not an Eye Irritant
2 studies / 2 not irritating (CIR 739)
Mixed Skin Irritation Results
9 studies / 3 mixed / 6 not irritating / reactions mild (CIR 739)
Concentration Guide
Leave-on0.00001–0.2%
Rinse-off0.00024–0.2%
0%50%100%
CIR reported use · report published 2022
Regulatory Agencies
Verified Jun 2026
Data: CosIng · EWG · CIR