Human Placental Protein
molecular structure · PubChem
AKA: Hydrolyzed placenta
Synthetic
Skin Conditioner
Hair Care
Not Clean
Human Placental Protein is a cosmetic ingredient used as hair conditioning, skin conditioning. Assessed as safe by the CIR.
CAS #
-
Form
Powder
State
Solid
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
Traditional Use
Placental proteins entered cosmetic use in the early-to-mid 20th century, especially in Japanese skincare, based on theories that placental biomolecules could stimulate skin regeneration and collagen synthesis. Use remains ethically contested and is now largely replaced by plant and biotech alternatives.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Caution
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory0 listings
🛡️Safety-assessed2 reviews →
Counts, not a verdict. A listing isn't a study. The trail, you decide.
Verified Jun 2026
Data: CosIng · EWG · CIR