Zinc Hexametaphosphate
AKA “Zinc dimetaphosphate, 13566-15-9, EINECS 236-967-2, Metaphosphoric acid (HPO3), zinc salt, Metaphosphoric acid (Zn(PO3)2), zinc salt (2:1), DTXSID401021954, RefChem:811232, DTXCID801506861, 236-967-2”
Ingredient
Ingredient Facts
Zinc hexametaphosphate
AKA: Zinc dimetaphosphate, 13566-15-9, EINECS 236-967-2, Metaphosphoric acid (HPO3), Zinc salt, Metaphosphoric acid (Zn(PO3)2), Zinc salt (2:1), DTXSID401021954, RefChem:811232, DTXCID801506861, 236-967-2
Ingredient · Anticorrosive · EWG: 4
Synthetic
Chelating Agent
Not Clean
The CIR Expert Panel concluded that the following 27 zinc salts are safe in cosmetics in the present practices of use and concentration described in this safety assessment when formulated to be non-irritating...Zinc Hexametaphosphate...
Formula
O6P2Zn
Mol. Weight
223.30
CAS #
13566-15-9
Form
Powder
See origin →
Functions
Anticorrosive
Buffering
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Prevents Corrosion
Stabilizes pH
Removes Metal Ions
Fights Bacteria
Anti-Aging Benefits
Reduces Inflammation
Prevents product degradation
Maintains optimal pH
Binds metal ions
Traditional Use
A synthetic polyphosphate salt developed in industrial chemistry for cosmetic applications. Used in modern formulations primarily as a thickening agent and chelating compound rather than for traditional zinc benefits.
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Final Report: Safety Assessment of Zinc Salts as Used in Cosmetics
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Zinc Hexametaphosphate
European Commission
EU Cosmetic Ingredient Database (CosIng)
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Safety Assessment of Zinc Salts as Used in Cosmetics.
Scott LN, Fiume M, Zhu J, Bergfeld WF, Belsito DV et al.
International journal of toxicology, 2024
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR