Glycine soja (Soybean) peptide
AKA: Soybean Peptide
Allergen Warning
⚠️ Soy
Plant-Derived Synthetic
Occlusive
Skin Conditioner
Hair Care
Amino Acid
Not Clean
Glycine Soja (Soybean) Peptide is a cosmetic ingredient used as film forming, hair conditioning, skin conditioning. Assessed as safe by the CIR.
CAS #
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Form
Powder
Functions
Film Forming
Creates a physical seal on skin to lock moisture in and keep irritants out. The "slugging" ingredient — barrier protection.
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.
Boosts collagen production
Reduces fine lines
Traditional Use
Soybeans have been used in traditional Asian cuisine and medicine for millennia. Soy peptides are a modern extraction developed in the late 20th century to isolate amino acid chains believed to support skin protein synthesis and firmness.
Skin Types
●all-skin-types
Best For
Loss of Elasticity
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: Kew POWO · CosIng · EWG · CIR