Compoatlas

COLLOIDAL GOLD

Official label name (INCI name, EU glossary of cosmetic ingredient names), No 7297

COLLOIDAL GOLD: Prohibited in nano form (Annex II, entry 1728); colorant allowed under conditions (Annex IV, entry 133), under Regulation (EC) No 1223/2009.

In plain words

What it is used for

Functions declared by manufacturers:

Antimicrobial: helps control the growth of micro-organisms on the skin.

Miscellaneous (skin conditioning): maintains the skin in good condition.

What the rules say

Only the nanomaterial form is prohibited; the non-nano form is not covered by this entry. On an ingredient list, the nanomaterial form is marked [nano].

An ingredient can be used as a colorant only if it appears on the list of Annex IV. <function plain_language.<locals>.name at 0x7f78064ff380> is on it with a warning to print.

The text of the annexes

Prohibited in nano form

CosIng links the name COLLOIDAL GOLD to this entry. The cases of prohibition are explained above, in “In plain words”; the official title is given below.

Entry
Annex II, No 1728
Substance
Gold (nano) [INCI], Colloidal Gold (nano) [INCI] [1] Gold Thioethylamino Hyaluronic Acid (nano) [INCI] [2] Acetyl heptapeptide-9 Colloidal gold (nano) [INCI] [3]
CAS
7440-57-5 [1] / 1360157-34-1 [2]/ - [3]
EC
231-165-9 [1]/ - [2]/ - [3]
Dates in the act (3)
  • Entry into force on 4 April 2024
  • Placing on the market from 1 February 2025
    From 1 February 2025 cosmetic products containing that substance shall not be placed on the Union market
  • Making available from 1 November 2025
    From 1 November 2025 cosmetic products containing that substance shall not be made available on the Union market

Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.

Colorant allowed under conditions

This entry covers the same substance as COLLOIDAL GOLD (same CAS number in the CosIng inventory): its conditions apply.

Entry
Annex IV, No 133
Substance
Gold
Glossary names
CI 77480
CAS
7440-57-5
EC
231-165-9
Warnings
Purity criteria as set out in Commission Directive 95/45/EC (E175)
Dates in the act (10)
  • Entry into force on 11 January 2010
  • Application from 1 December 2010
    It shall apply from 11 July 2013, with the exception of: — Article 15(1) and (2) which shall apply from 1 December 2010, as well as Articles 14, 31 and 32 to the extent that they are necessary to apply Article 15(1) and (2); and — Article 16(3) second subparagraph, which shall apply from 11 January 2013.
  • Entry into force on 1 December 2010
  • Condition applicable from 11 January 2012
    As from 11 January 2012, by way of derogation from Directive 76/768/EEC, notification carried out in accordance with Article 13 of this Regulation shall be considered to comply with Article 7(3) and Article 7a(4) of that Directive
  • Application from 11 January 2013
    July 2013, with the exception of: — Article 15(1) and (2) which shall apply from 1 December 2010, as well as Articles 14, 31 and 32 to the extent that they are necessary to apply Article 15(1) and (2); and — Article 16(3) second subparagraph, which shall apply from 11 January 2013.
  • Entry into force on 11 January 2013
  • Application from 11 July 2013
    It shall apply from 11 July 2013, with the exception of: — Article 15(1) and (2) which shall apply from 1 December 2010, as well as Articles 14, 31 and 32 to the extent that they are necessary to apply Article 15(1) and (2); and — Article 16(3) second subparagraph, which shall appl
  • Entry into force on 11 July 2013
  • Placing on the market before 11 July 2013
    Article 39 Transitional provisions By way of derogation from Directive 76/768/EEC, cosmetic products which comply with this Regulation may be placed on the market before 11 July 2013.
  • Placing on the market from 11 July 2013
    As from 11 July 2013, a distributor who makes available in a Member State a cosmetic product already placed on the market in another Member State and translates, on his own initiative, any element of the labelling of that product in order to comply with national law, shall submit, by electronic means, the following info

Excerpts from the English text published in the Official Journal. A date may concern only some substances of the act: the excerpt says so.

Identity

CosIng identifier
85793
CAS (according to CosIng)
7440-57-5
EC (according to CosIng)
231-165-9
Declared functions
Antimicrobial, Skin conditioning: miscellaneous

The CAS number cited by CosIng also covers 2 other INCI names: it designates a family of substances, not this ingredient alone.

EU product alerts (Safety Gate)

1 alert on cosmetic products cite this name in their hazard description. An alert targets a specific product, not the ingredient itself; each alert states the reason (prohibited substance, limit exceeded, missing labelling, and so on).

  • 27 February 2026: Moisturiser, Dr Juice, Hungary (“Other risk levels”) alert

Elsewhere in the world

Information on other jurisdictions. What is covered, and what is not yet.

United Kingdom (Great Britain)

  • Colorant allowed under conditions (Annex IV)

Entry 1728 of Annex II of EU law (Regulation (EU) 2024/858) has no equivalent in British law.

Switzerland

Regulation (EC) No 1223/2009 applies in Switzerland (Article 54 of the Ordinance on Foodstuffs and Utility Articles).

United States, federal rules

None of the integrated sections of the federal code (21 CFR 700.11 to 700.27 and 250.250) targets this name. The FDA does not publish a list of allowed ingredients.

Recorded cosmetics that contain it

5 recorded products list it, according to Open Beauty Facts contributors. Records are dated: the formula may have changed. See the list (page in French).

Glossary: Commission Implementing Decision (EU) 2025/1175. Page updated on 21 October 2026.