Magnesium Phosphate

AKA: Phosphoric acid, Magnesium salt, 10043-83-1, Newberyte, Trimagnesium orthophosphate

Synthetic

Not Clean

Phosphoric acid, magnesium salt

Solubility INSOL IN COLD OR HOT WATER; INSOL IN LIQUID AMMONIA; SOL IN AMMONIUM SALT SOLN

Formula

Mg3O8P2

Mol. Weight

262.86

CAS #

10043-83-1

Form

Powder

State

NKRA

Functions

Light Stabilizer

Shields from UV damage

Traditional Use

A mineral salt developed in the 19th-20th centuries for industrial and cosmetic use. Used as a buffering agent and anti-caking ingredient with no meaningful traditional cosmetic history.

EWG

CIR

Safe as used

Pregnancy

Yes

CIR Safety Findings

Not a Sensitizer

medical-approval

all-shades-safe

Regulatory Status

USA✔ permitted

EU⚠ restricted

JAPAN⚠ restricted

CANADA⚠ restricted

Regulatory Agencies

EWG CIR FDA EU COSING Health Canada

Skin Types

●all-skin-types

Best For

General

Pregnancy & Breastfeeding Safe

Yes

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