The forbidden ingredients of the Curly Girl method

curly girl metodens fordubte ingredienser

If you know the Curly Girl method, you know that there are many ingredients that the products you use may not contain.
When a product is approved for the Curly Girl Method, it is called a Curly Girl Approved Product.

Here at the webshop, you only find products that are approved!

Below, we have listed all the ingredients that are NOT approved on the method, or that can otherwise present challenges, such as soap and Itchy m's.


Some alcohols are drying out for the hair and therefore you must avoid them. In the list below you can see which alcohol alcohols are involved.

  • Alcohol
  • Alcohol (Dent)
  • Alkohol denat
  • Denatured alcohol
  • Ethanol
  • Isopropanol
  • Isopropyl alcohol
  • Porpanol
  • Propanol
  • Propyl alcohol
  • Propyl alkohol
  • SD alcohol 40
  • SD alkohol
  • SD alcohol
  • Witch hazel


Silicone is a skin around the hair, and the nourishing ingredients of the conditioner and hair regeneration cannot penetrate the hair and care for it.

  • Amodimethicone
  • Behenoxy Dimethicone
  • Bis-amin PEG
  • Bis-aminopropyl dimethicone
  • Botanisil
  • Cetearyl methicone
  • Cetyl dimethicone
  • Cyclepentasiloxane
  • Cyclomethicone
  • Dimethcione
  • Dimethiconol
  • Dimethicone
  • Dimethyl silicone
  • Diphenyl dimethicone
  • Divinyl dimethicone
  • Microsil
  • PG-Propyl
  • Phenyl trimethicone
  • PPG-41
  • Silane
  • Silicone
  • Siloxane
  • Siloxysilicate
  • Silsesquioxane
  • Silylate
  • Stearyl Dimenthicone
  • Stearoxy Dimethicone
  • Trimethylsilylamodimethicone
  • Trimethylsiloxysilicate
  • Trisilixane
  • 3 Aminoethyl


  • Alkyl benzene sulfonate
  • Alkylbenzene sulfonate
  • Alkylbenzene sulfonates
  • Ammonium cocoyl sulfate
  • Ammonium cocoyl sulphate
  • Ammonium laureth sulfate
  • Ammonium laureth sulphate
  • Ammonium lauryl sulfate
  • Ammonium lauryl sulphate
  • Ammonium xylenesulfonate
  • Ammonium xylene-sulfonate
  • Coca-sulfat
  • Dioctyl sodium sulfosuccinate
  • Ethyl peg-15 cocamine sulfate
  • Mipa-laureth sulfate
  • Sodium alkyl sulfate
  • Sodium alkyl sulphate
  • Sodium c12-18 alkyl sulfate
  • Sodium c12-18 alkyl sulphate
  • Sodium c14-16 olefin sulfonate
  • Sodium cetearyl sulfate
  • Sodium cetearyl sulphate
  • Sodium coceth sulfate
  • Sodium coceth sulphate
  • Sodium coco sulfate
  • Sodium coco sulphate
  • Sodium coco-suldate
  • Sodium cocosulfate
  • Sodium coco-sulfate
  • Sodium cocosulphate
  • Sodium coco-sulphate
  • Sodium cocoyl sarcosinate
  • Sodium laureth sulfate
  • Sodium laureth sulphate
  • Sodium laureth-40 sulfate
  • Sodium laureth-40 sulphate
  • Sodium lauryl sulfate
  • Sodium lauryl sulfoacetate
  • Sodium lauryl sulphate
  • Sodium myreth sulfate
  • Sodium myreth sulphate
  • Sodium polystyrene sulfate
  • Sodium polystyrene sulphate
  • Sodium xylenesulfonate
  • Sodium xylene-sulfonate
  • Sulfonate
  • Tea dodecylbenzenesulfonate
  • Tea lauryl sulfate
  • Tea lauryl sulphate
  • Tea-dodecylbenzenesulfonate
  • Triethanolamine lauryl sulfate
  • Triethanolamine lauryl sulphate

Wax and Oils:

When co-washing or using low-poo it can be difficult to wash wax and oils out of the hair again, as it often requires a sharp sulphate.

  • Bees wax
  • Beeswax
  • Candelilla wax
  • Cera
  • Cire
  • Dodecane
  • Dodecene
  • Isododecane
  • Isohexad
  • Isohexadecane
  • Isohexanedecane
  • Lanolin
  • Mineral oil
  • Paraffin
  • Petrolatum
  • Shellac
  • Wax


  • Castor Oil (Not directly banned, but some may have trouble washing it out)


Let's make it clear, soap is not forbidden! But soap has the same exfoliating properties as sulfate and therefore, for some, it can pose challenges. So, in these cases, one must be aware of the following ingrediens:

  • Potassium hydroxide
  • Saponification
  • Saponified
  • Saponifying
  • Soap
  • Sodium carboxylate
  • Sodium palm

Itchy m´s:

Itchy m´s covers Methylchloroisothiazolinone / Methylisothiazolinone which are preservatives. These are classified as highly allergenic and can therefore cause rash and or itching.

They are not prohibited according to the curly girl method.

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