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Is Sodium Tetraborate vegan?

Sodium Tetraborate

Vegan

Sodium tetraborate, commonly known as borax, is an inorganic boron compound with the formula Na2B4O7. It occurs naturally as a mineral deposit and is used as a buffering agent, pH adjuster, and preservative booster in cosmetic formulations.

Also known as Borax, Boron sodium oxide, Disodium tetraborate, Sodium borate
E number E285
CAS number 1303-96-4
EC number 215-540-4
Last reviewed 22 April 2026

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