Zinc Phosphate

AKA: Phosphoric acid, Zinc salt (2:3), Tetrahydrate, Zinc phosphate tetrahydrate, 7543-51-3, Hopeite, Trizinc;diphosphate;tetrahydrate, ZINCPHOSPHATETETRAHYDRATE
Synthetic
Not Clean
OriginSynthesized from zinc salts and phosphoric acid or phosphate compounds through acid-base reactions. Produced by combining zinc oxide or zinc chloride with phosphate sources under controlled laboratory conditions.
Hopeite is a mineral with formula of Zn2+3(PO4)2·4H2O or Zn3(PO4)2·4H2O. The IMA symbol is Hop.
Formula
H8O12P2Zn3
Mol. Weight
458.10
CAS #
7543-51-3
Form
Powder
Skin Types
●all-skin-types
Best For
Acne
Pregnancy & Breastfeeding Safe
Yes
Functions
Antiplaque
Stabilizes pH
Oral Care
Fights Bacteria
Anti-Aging Benefits
Reduces Inflammation
Supports dental health
Maintains optimal pH
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.
EWG
4
CIR
Safe as used
Pregnancy
Yes
CIR Safety Findings
Not an Eye Irritant
1 study / 1 not irritating (CIR 755)
Concentration Guide
Leave-onNot reported
Rinse-off1%
0%50%100%
CIR reported use · 2016 survey
Regulatory Agencies
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR
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