OriginSodium trimetaphosphate is synthesized from phosphoric acid and sodium compounds through high-temperature condensation reactions. The phosphoric acid is heated and dehydrated to form metaphosphoric acid, which is then reacted with sodium salts to produce the final compound.
The CIR Expert Panel concluded that the following 31 ingredients are safe in the present practices of use and concentration in cosmetics as described in this safety assessment, when formulated to be non-irritating...Sodium Trimetaphosphate...
Formula
Na3O9P3
Mol. Weight
305.89
CAS #
7785-84-4
Form
Powder
State
NKRA; Dry Powder; Liquid; Other Solid
Skin Types
●all-skin-types
Best For
General
Pregnancy & Breastfeeding Safe
Yes
Functions
Anticaking
Buffering
Chelating
Grabs onto metal ions in water that would destabilize the formula. Keeps your product from going bad or changing color.
Prevents Clumping
Stabilizes pH
Removes Metal Ions
Antioxidant Protection
Reduces Inflammation
Locks In Moisture
Maintains optimal pH
Binds metal ions
The paper trail
🔬Peer-reviewednone on file
⚖️Regulatory1 listing →
🛡️Safety-assessed3 reviews →
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 a Skin Irritant
1 study / 1 not irritating (CIR 333)
Eye Irritant in Testing
1 study / 1 irritating / reactions slight (CIR 710)
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