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E306–E309 — Tocopherols (vitamin E)

Antioxidants (vitamin E forms) that keep oils from going rancid — very common in vegetable oils, snacks, and infant formula.

Allergen connection

Commercially they are most often extracted from soybean oil. Like refined soy oil, the finished additive carries virtually no soy protein, and EU rules exempt fully refined soy derivatives from allergen labelling — which is why you may not see “soy” next to E306. Most soy-allergic people tolerate them; ask your allergist where your line is.

Where you'll see it

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Scallergy checks ingredient lists — including allergen-derived additives and hydrolysed proteins — against your personal allergen profile, and tells you honestly when data is missing.

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Scallergy is assistive, not medical advice. Additive sourcing varies by manufacturer — when the source matters for a severe allergy, confirm with the producer and your allergist. Sources: EU Regulation 1169/2011; our data sources.