Beauty · Endocrine disruptors

Is Daidzein Banned? EU vs US Status, Risks & Where It Hides

TL;DR: Daidzein is restricted in the EU but allowed in the US (endocrine disruptors).

INCI name Daidzein. CAS 486-66-8.

Is Daidzein banned in the EU?

EU status	Restricted
US status	Allowed
Risk level	medium
Where it shows up	anti-aging serum, phytoestrogen creams
CAS number	486-66-8

Daidzein (Daidzein) is a soy-derived phytoestrogen.

It is used for its preservative, coloring, fragrance, solvent or texture-enhancing function.

Listed by the EU as an endocrine disruptor; restricted in cosmetics.

Choose EU-compliant or 'free-from' formulations and read the INCI list. BannedPantry flags this ingredient and suggests safer swaps.

Is Daidzein banned in the EU?

Daidzein is restricted under the EU Cosmetics Regulation (1223/2009), but it is allowed in US personal-care products.

Is Daidzein in US cosmetics?

Yes — Daidzein can still appear in US-sold cosmetics and personal-care products because US rules are far less restrictive than the EU's.

What products contain Daidzein?

Read the INCI ingredient list on the back of the package. Scan the barcode with BannedPantry to flag Daidzein automatically.

Are there safer alternatives to Daidzein?

Yes. Look for EU-compliant or 'free-from' formulations; BannedPantry suggests safer swaps when it detects Daidzein.

Is Daidzein in your bathroom cabinet?

Scan any product's barcode and instantly see if it contains Daidzein or other ingredients banned overseas.

Our scores are never influenced by brands. Last updated 6/11/2026.