What does the restriction note for CYCLOMETHICONE mean?

The restriction field for CYCLOMETHICONE reads: II/1388 (Only when Cyclomethicone contains D4). This is the restriction note from the CosIng inventory. For authoritative conditions and limits, always refer to the linked annex entries.

What function does CYCLOMETHICONE serve in cosmetics?

According to the EU CosIng inventory, CYCLOMETHICONE carries the following function designation(s): HAIR CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SOLVENT.

InventoryRef 3310130/11/2020

CYCLOMETHICONE

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

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.

Cyclomethicone is a generic name for a mixture of cyclic dimethyl polysiloxane compounds that conform to the formula, where n has a value between 4 and 6.

CYCLOMETHICONE is linked to 1 EU annex record on this page. Inventory note: II/1388 (Only when Cyclomethicone contains D4).

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Inventory details for CYCLOMETHICONE

INCI name

CYCLOMETHICONE

INN name

cyclomethicone

Description

Cyclomethicone is a generic name for a mixture of cyclic dimethyl polysiloxane compounds that conform to the formula, where n has a value between 4 and 6.

Annex records for CYCLOMETHICONE

Annex II Restriction reference

Entry 1388

Octamethylcyclotetrasiloxane; D4

CAS: 556-67-2

EC: 209-136-7

Key data

CAS

69430-24-6 / 556-67-2 / 541-02-6 / 540-97-6

- / 209-136-7 / 208-764-9 / 208-762-8

Restriction

II/1388 (Only when Cyclomethicone contains D4)

Function

HAIR CONDITIONING SKIN CONDITIONING - EMOLLIENT SOLVENT

How CYCLOMETHICONE appears in the CosIng inventory

The CosIng inventory lists CYCLOMETHICONE 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.

CYCLOMETHICONE 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

CYCLOMETHICONE 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 CYCLOMETHICONE reads: "II/1388 (Only when Cyclomethicone contains D4)". 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, CYCLOMETHICONE carries the following function designation(s):

CAS 69430-24-6 / 556-67-2 / 541-02-6 / 540-97-6 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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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 CYCLOMETHICONE

This page combines the CosIng inventory entry for CYCLOMETHICONE 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 CYCLOMETHICONE 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

Check your formula

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

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Search similar ingredients

Find other inventory ingredients and annex entries related to CYCLOMETHICONE, its identifiers or nearby name variants.