Copper Citrate

AKA: Citric acid, Copper salt, COPPER CITRATE [WHO-DD], COPPER CITRATE [INCI], 3Propanetricarboxylic acid, 2hydroxy, 3-Propanetricarboxylic acid
Synthetic
Preservative
Chemical Exfoliant
Not Clean
1,2,3-Propanetricarboxylic acid, 2-hydroxy-, copper salt
Formula
C6H8CuO7+2
Mol. Weight
255.67
CAS #
19807-11-5
Form
Powder
Functions
Antimicrobial
Keeps your product from growing bacteria, mold, or yeast. Without these, that jar of cream becomes a petri dish in about a week.
Fights Bacteria
Traditional Use
Copper compounds have been used in traditional medicine for wound healing and antimicrobial purposes for centuries; copper citrate was developed as a modern cosmetic ingredient to deliver copper's benefits in a stable, bioavailable form.
EWG
4
CIR
Safe as used
Pregnancy
Caution
CIR Safety Findings
Not a Sensitizer
medical-approval
all-shades-safe
Regulatory Status
USApermitted
EUrestricted
JAPANrestricted
CANADArestricted
Skin Types
all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Caution
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: PubChem · CosIng · EWG · CIR