Compoatlas

POLYSORBATE 21

Official label name (INCI name, EU glossary of cosmetic ingredient names), No 22321

POLYSORBATE 21: no specific rule of the EU Cosmetics Regulation names it. It is neither prohibited nor restricted there, and it is on none of its lists of colorants, preservatives or UV filters.

In plain words

What it is used for

Functions declared by manufacturers:

Emulsifying (surfactant): promotes the formation of intimate mixtures of non-miscible liquids by altering the interfacial tension.

Cleansing (surfactant): helps to keep the body surface clean.

What the rules say

No EU rule targets this ingredient specifically. It remains subject to the general rule: every product must undergo a safety assessment before it is sold (Article 10 of Regulation (EC) No 1223/2009), under the manufacturer's responsibility.

The text of the annexes

No specific rule of the EU Cosmetics Regulation names this ingredient: it is on none of its lists (prohibited, restricted, colorants, preservatives, UV filters). It may be used under the responsibility of the manufacturer, who must ensure the product is safe.

Identity

CosIng identifier
79319
CAS (according to CosIng)
9005-64-5
Declared functions
Surfactant: emulsifying, Surfactant: cleansing

The CAS number cited by CosIng also covers 6 other INCI names: it designates a family of substances, not this ingredient alone.

Elsewhere in the world

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

United Kingdom (Great Britain)

  • No specific rule in the Cosmetics Regulation

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

13 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.