Hydrolyzed Silk
AKA “Silk Hydrolysate, Hydrolyzed Silk Protein”
Synthetic
Ingredient Facts
Hydrolyzed silk
AKA: Silk Hydrolysate, Hydrolyzed Silk Protein
Synthetic · Humectant · EWG: 4
Plant-Derived Synthetic
Humectant
Skin Conditioner
Hair Care
Synthetic
Clean
Silk protein that smooths and hydrates hair while locking in moisture for softer, shinier strands and conditioning skin.
CAS #
96690-41-4
Form
Liquid
See origin →
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.
Humectant
A moisture magnet. Pulls water from the air and deeper skin layers up to the surface to keep skin plump and hydrated.
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
Silk has been prized in Asian beauty for over 4,000 years, used directly on skin for smoothing and conditioning. Hydrolyzed silk was developed in modern cosmetics to create smaller protein molecules that can penetrate skin more effectively.
Skin Types
●all-skin-types
Best For
Dryness
Melanin-Rich Skin
Suitable
Pregnancy & Breastfeeding Safe
Yes
Hydrolyzed Silk
European Commission
EU Cosmetic Ingredient Database (CosIng)
MEA-Hydrolyzed Silk
European Commission
EU Cosmetic Ingredient Database (CosIng)
Hydrolyzed Silk
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
[Heterologous expression of bacterial tyrosinase and its applications in biological hair dyeing and DOPA modification of hydrolyzed silk fibroin].
Zheng Y, Xu R, Wang Y, Fang C, DU G et al.
Sheng wu gong cheng xue bao = Chinese journal of biotechnology, 2024
Verified Feb 2026
Data: CosIng · EWG · CIR