Atelocollagen
AKA: Soluble Collagen, Acid-Soluble Collagen
Synthetic
Skin Conditioner
Marine
Clean
Atelocollagen is the protein obtained when the telopeptides are enzymatically removed from collagen
Effective at 8.25%
CAS #
9007-34-5
Form
Powder
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.
Boosts collagen production
Locks in moisture
Traditional Use
Derived from collagen with the terminal telopeptides removed, developed in the 1970s-1980s to reduce allergenicity while maintaining collagen's historical use in skincare for skin firmness and hydration.
EWG
1
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not a Sensitizer
ewg-1
medical-approval
pregnancy-nursing-safe
all-shades-safe
Concentration Guide
4e-06%
16.5%
0%100%
Reported use
CIR reported use: 0.000004-6 | 0.00003-16.5
Regulatory Agencies
Skin Types
●all-skin-types, gentle
Best For
Loss of Elasticity
Pregnancy & Breastfeeding Safe
Yes
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.
Verified Jun 2026
Data: CosIng · EWG · CIR