Is THREONINE safe to use in EU cosmetics?

THREONINE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Always verify against the current official CosIng database before formulating.

What function does THREONINE serve in cosmetics?

According to the EU CosIng inventory, THREONINE carries the following function designation(s): ANTISTATIC, HAIR CONDITIONING, HAIR WAVING OR STRAIGHTENING.

InventoryRef 3859415/10/2010

THREONINE

Q: How do I check if my formula contains THREONINE?

Use the INCI Checker tool on CosIng Checker to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

2-Amino-3-hydroxybutanoic acid

THREONINE is listed in the EU CosIng inventory, but no direct annex records are linked on this page yet.

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Inventory details for THREONINE

INCI name

THREONINE

INN name

threonine

Description

2-Amino-3-hydroxybutanoic acid

Annex records for THREONINE

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Key data

CAS

72-19-5 / 80-68-2

200-774-1 / 201-300-6

Restriction

—

Function

ANTISTATIC HAIR CONDITIONING HAIR WAVING OR STRAIGHTENING

How THREONINE appears in the CosIng inventory

The CosIng inventory lists THREONINE as a cosmetic ingredient and this page links it to 0 annex records. The inventory entry captures names and identifiers, while the annex records show where the substance is prohibited, restricted or positively listed in EU cosmetics law.

THREONINE is also tagged with 3 cosmetic functions in the official data. Function labels describe intended use, but they do not replace regulatory review of linked annex records before formulation or labelling work.

Frequently asked questions

THREONINE is listed in the EU CosIng ingredient inventory with no direct annex restriction records linked at this time. Absence of an annex link does not guarantee unrestricted use — always verify against the current official CosIng database before formulating.

According to the EU CosIng inventory, THREONINE carries the following function designation(s):

CAS 72-19-5 / 80-68-2 may appear across multiple EU annex records. Viewing the CAS lookup page shows all Annex II–VI entries sharing this identifier, which is useful for identifying cross-annex regulatory status of the same chemical substance.

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Use the INCI Checker tool to paste your full ingredient list and scan it against all EU annex records and allergen flags in one step.

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Source note for THREONINE

This page reproduces the CosIng inventory entry for THREONINE from public European Commission cosmetic ingredient materials and shows linked identifiers even when no direct annex match is currently attached.

Use this inventory page to research THREONINE and compare linked records, but verify restrictions and legal status against the current official source text and law before making regulatory decisions.

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Tools & next steps

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Scan a full INCI list to detect THREONINE and any linked EU annex restrictions or allergen flags.

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