Hydrolyzed Whey Protein

Hydrolyzed Whey Protein 1
Hydrolyzed Whey Protein 2
Hydrolyzed Whey Protein 3
Hydrolyzed Whey Protein 4
AKA: Whey Protein Hydrolysate
Synthetic
Skin Conditioner
Not Clean
Hydrolyzed Whey Protein is the hydrolysate of Whey Protein derived by acid, enzyme or other method of hydrolysis
CAS #
-
Form
Powder
State
Solid
Functions
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
Whey, a byproduct of cheese-making, was traditionally used in European folk medicine and skincare. Modern hydrolyzed whey protein was developed in the mid-20th century to provide skin-conditioning and moisturizing benefits in cosmetics.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
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: CosIng · EWG · CIR