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Potassium Borate

Moderate concern

Borates are restricted in food and cosmetics due to reproductive/developmental toxicity concerns at high doses. EFSA set a tolerable upper intake for boron at 10 mg/day (adults).

Found in

2 products

What it is

Inorganic salt of potassium and boric acid; used industrially and in some cosmetic formulations.

Not a permitted food additive; primarily industrial/cosmetic.

Why it's flagged

reproductive/developmental toxicity at high exposures (boron)
not approved as a direct food additive

What regulators actually say

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Regulatory status

United States — FDA

Not approved as a direct food additive.

European Union — EFSA

Restricted; tolerable upper intake for boron set at 10 mg/day for adults.

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