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Ingredient function 93 ingredients · Page 1/2

HAIR WAVING OR STRAIGHTENING

Modifying the chemical structure of the hair, allowing it to be set in the style required (permanent waves or hair straightening).

Definition provenance: European Commission CosIng ingredient-function terminology.

93 ingredients in the EU CosIng inventory carry the HAIR WAVING OR STRAIGHTENING function designation.

Review HAIR WAVING OR STRAIGHTENING ingredientsAll functions

Ingredients with the HAIR WAVING OR STRAIGHTENING function

ABIES KOREANA LEAF POWDER

54232

Abies Koreana Leaf Powder is the powder obtained from the dried, ground leaves of the Abies koreana, Pinaceae

BIS-AMINOPROPYL DIGLYCOL DIMALEATE

93731

Bis-Aminopropyl Diglycol Dimaleate is the salt of Maleic Acid (q.v.) and the diamine formed between Diethylene Glycol (q.v.) and 1-aminopro…

CAS 1629579-82-3

BUTYROLACTONETHIOL

82878

2(3H)-Furanone, Dihydro-3-Mercapto-; Butyric acid, 4-hydroxy-2-mercapto-, gamma-lactone

CAS 14032-62-3

CYSTEAMINE

95978

Ethanethiol, 2-amino- or Mercaptamine

CAS 60-23-1

CYSTEAMINE SULFATE

cosing-live-105128

Cysteamine Sulfate is the amine salt that conforms to the formula

CAS 157-09-5/ 16214-16-7

CYSTEAMINE THIOGLYCOLATE

98179

Cysteamine Thioglycolate is the salt of Thioglycolic Acid and Cysteamine that conforms to the formula:

HYDROLYZED CELLULOSE

86729

Hydrolyzed Cellulose is the hydrolysate of Cellulose derived by acid, enzyme, or other method of hydrolysis

These widely assigned CosIng terms provide populated comparison pages; they are not presented as semantic equivalents of the current function.

SKIN CONDITIONING · 13138SURFACTANT · 4574HAIR CONDITIONING · 3619SKIN CONDITIONING - EMOLLIENT · 3586SURFACTANT - CLEANSING · 3218SURFACTANT - EMULSIFYING · 2924ANTIOXIDANT · 2907SKIN PROTECTING · 2784

How the HAIR WAVING OR STRAIGHTENING function is used in CosIng

The HAIR WAVING OR STRAIGHTENING function is assigned by the European Commission in the CosIng ingredient inventory. This page currently lists 93 ingredients carrying that function label in the dataset, which helps you move from a functional claim to the exact ingredients that use it.

Modifying the chemical structure of the hair, allowing it to be set in the style required (permanent waves or hair straightening).

Function assignments come from official EU CosIng data. They describe intended cosmetic use, but they do not replace regulatory review of each linked ingredient and any annex records tied to it.

Frequently asked questions

The HAIR WAVING OR STRAIGHTENING function, as defined in the EU CosIng database, describes the role this group of ingredients plays in a cosmetic formulation. There are currently 93 ingredients in the EU CosIng inventory assigned this function. Function labels are standardised terms used in Product Information Files (PIF) and ingredient declarations.

Yes. An ingredient's function in the CosIng inventory is independent of its regulatory status. An ingredient with the HAIR WAVING OR STRAIGHTENING function may also be listed in Annex II (prohibited), Annex III (restricted), or other annexes. Always check each ingredient's annex records for applicable conditions before formulating.

Ingredient functions are documented in the Product Information File (PIF) as part of the cosmetic product safety assessment. They describe the intended role of each ingredient in the formulation and support the safety assessor's review. Functions do not appear on consumer-facing product labels, which list only INCI names.

Use the INCI Checker to paste your full ingredient list and screen it against all Annex II–VI restrictions, CMR classifications and allergen flags from the EU CosIng database.
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Tools & next steps

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Scan a full INCI list, then review which matched ingredients are tagged with the HAIR WAVING OR STRAIGHTENING function.

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See the full list of cosmetic ingredient function categories in the EU CosIng inventory.

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Review linked regulatory evidence

23 ingredients in this function have structured links to EU annex records.

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