What does the restriction note for CYCLOTETRASILOXANE mean?

The restriction field for CYCLOTETRASILOXANE reads: II/1388. This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

InventoryRef 3310430/07/2020

CYCLOTETRASILOXANE

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

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.

Octamethylcyclotetrasiloxane

CYCLOTETRASILOXANE is linked to 1 EU annex record on this page. Inventory note: II/1388.

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Inventory details for CYCLOTETRASILOXANE

INCI name

CYCLOTETRASILOXANE

Description

Octamethylcyclotetrasiloxane

Annex records for CYCLOTETRASILOXANE

Annex II Restriction reference

Entry 1388

Octamethylcyclotetrasiloxane; D4

CAS: 556-67-2

EC: 209-136-7

Key data

CAS

556-67-2 / 293-51-6

209-136-7 / -

Restriction

II/1388

Function

HAIR CONDITIONING SKIN CONDITIONING - EMOLLIENT SOLVENT

How CYCLOTETRASILOXANE appears in the CosIng inventory

The CosIng inventory lists CYCLOTETRASILOXANE as a cosmetic ingredient and this page links it to 1 annex record. The inventory entry captures names and identifiers, while the annex record shows where the substance is prohibited, restricted or positively listed in EU cosmetics law.

CYCLOTETRASILOXANE 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

CYCLOTETRASILOXANE appears in the EU CosIng inventory and has linked annex records. Check the annex records above for applicable restrictions, concentration limits and conditions of use. Annex II listing means prohibited; Annex III means restricted; Annexes IV, V and VI mean permitted under specified conditions.

The restriction field for CYCLOTETRASILOXANE reads: "II/1388". This is the restriction note recorded in the CosIng inventory for this ingredient. For authoritative conditions and limits, always refer to the linked annex entries above.

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

CAS 556-67-2 / 293-51-6 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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Source note for CYCLOTETRASILOXANE

This page combines the CosIng inventory entry for CYCLOTETRASILOXANE with 1 linked Annex II–VI record from the local dataset built from public European Commission cosmetic ingredient materials.

Use this inventory page to research CYCLOTETRASILOXANE 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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