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Ingredients to Avoid in Curly Hair Products

It can be so confusing to know which ingredients are healthy for your curly hair, and which ones are harmful. You might feel like you have to become a chemist just to decipher the labels! To save you time and research, you can benefit from my research instead and save this post as you read labels to find the best products for your curls!

Ingredients to Avoid in Curly Hair Products - Toxins, Irritants and Drying Ingredients
Sulfates to Avoid in Curly Hair Products

Avoid Sulfates

Sulfates are harsh detergents that strip oil and dirt out of your hair so well, they actually deplete the naturally produced sebum that moisturizes your hair. While sulfates can be beneficial for hair that gets oily quickly or has looser curls, they’re usually a no-no for drier curly hair. Here are the ones to avoid:

  • Alkylbenzene sulfonates
  • Alkyl Benzene Sulfonate
  • Ammonium laureth sulfate
  • Ammonium lauryl sulfate
  • Ammonium Xylenesulfonate
  • Sodium C14-16 Olefin Sulfonate
  • Sodium cocoyl sarcosinate
  • Sodium laureth sulfate
  • Sodium lauryl sulfate
  • Sodium lauryl sulfoacetate
  • Sodium myreth sulfate
  • Sodium Xylenesulfonate
  • TEA-dodecylbenzenesulfonate
  • Ethyl PEG-15 cocamine sulfate
  • Dioctyl sodium sulfosuccinate

Check out my Amazon storefront here to know which products I recommend getting, from high end to bargain brands, and accessories like sleeping bonnets and diffusers, I’ve covered it all and make shopping easier for you!

Gentle and safe cleansers for curly hair that won't dry the hair out

Gentle cleansers that are non-drying and safe for curly hair:

  • Cocamidopropyl betaine
  • Coco betaine
  • Cocoamphoacetate
  • Cocoamphodipropionate
  • Disodium cocoamphodiacetate
  • Disodium cocoamphodipropionate
  • Lauroamphoacetate
  • Sodium cocoyl isethionate
  • Behentrimonium methosulfate
  • Disodium lautreth sulfosuccinate
  • Babassuamidopropyl betaine
Silicones to Avoid in Curly Hair Products

Avoid Silicones

Silicones are synthetic resins and are found in many hair products due to their ability to add shine and condition the hair. Sounds good, right? Well, the problem is that they are not water soluble, so they produce build up on the hair and scalp that no-poo shampoos cannot remove. There are many different names for them, but to keep it simple, anything ending in: “cone,” “conol,” “col,” or “xane,” should be avoided. The only exceptions here are those ingredients with the abbreviations “PEG” or “PPG” in front of them. This abbreviation will alert you that they were made to be water-soluble, and won’t produce the build-up other silicones are known to cause.

  • Cetearyl Methicone
  • Cetus Dimethicone
  • Dimethicone
  • Dimethiconol
  • Stearyl Dimethicone

These are a little better but still can cause buildup: 

  • Amodimethicone
  • Cyclomethicone/Cyclopentasiloxane
  • Trimethylsilylamodimethicone

Here are some water-soluble ones that do cause buildup over time (just slower):

  • Behenoxy Dimethicone
  • Stearoxy Dimethicone

Avoid Mineral Oils

Minerals oils are a derivative of crude oil (petrolatum) that is refined into a slippery liquid. It is lightweight and inexpensive, which is why so many companies use it. It coats the hair like silicones do, blocking the hair from getting water. So at first it can make the hair shiny and soft, but then actually ends up drying hair out and takes a strong sulfate shampoo to remove.

Can Clog the Pores

It is also considered to be comedogenic, meaning, it clogs the pores. This is NOT good considering we want our scalps to be clean and clear so that our hair can grow healthy and strong! Plus, if it washes down onto your neck, face, shoulders and back, it can contribute to pimples and acne.

Can Contain Many Toxins

There are different grades of mineral oils and there are many chemicals used in the refining process. Some studies have been done that have concluded it does contain toxins, but the result to our health is still undetermined. (Read more here.)

All About Alcohols in Curly Hair Products and which ones to avoid, and which ones are safe and moisturizing

Avoid Drying Alcohols

Not all alcohols are bad, but there are some ones that are too drying for curly hair. The drying alcohols are short-chain ones, and the moisturizing ones are long-chain, fatty alcohols that come from plants, animals and oils.

  • SD Alcohol 40
  • Ethanol Alcohol
  • Ethyl Alcohol
  • Propyl Alcohol
  • SD Alcohol
  • Propanol Alcohol
  • Isopropyl Alcohol

Optional: Artificial Fragrances

Avoiding artificial fragrances is really more of a personal choice as fragrance doesn’t affect the health of your hair (that we know of!). It’s not always possible and I will buy products that have artificial fragrances in them if the scent is isn’t too strong or I just LOVE the product and it what it does for my hair.

So the main I avoid fragrance is that it stands for more than 3,000 different chemicals! Some are known to be carcinogenic and irritating, but since the actual chemical isn’t disclosed, we don’t know if it’s a safe one or a toxic one. I know many people who get headaches from strong scents, too.

Brands that contain no artificial fragrances are usually organic ones like InnerSense Organics, and many of Shea Moisture’s products are scented with essential oils.

Toxins to Avoid in Curly Hair and Hair Products - Artificial Fragrances, Preservatives, Parabens and Phthalates

Irritating and Toxic Preservatives

Preservatives are a necessary ingredient to keep hair products shelf-stable, but some are very irritating and considered to be toxic.

  • Formaldhyde – a common preservative (I mean, duh, to embalm the dead (blech!) that is known to be carcinogenic to both animals and humans. No cancer, thank you!
  • These preservatives release formaldehyde: Diazolidinyl urea, DMDM, Hydantoin, Glyoxal, Imidazolidinyl urea, Polyoxymethylene urea, Quaternium-15, Sodium hydroxymethylglycinate
  • Methylisothiazolinone – is a common preservative in hair products, linked to lung toxicity, allergic reactions, and possible neurotoxicity. 


Parabens are very effective, cheap preservatives that are naturally found in plants. They also prevent harmful mold and bacteria from growing products. But many also consider them to be xenoestrogens, which can disrupt hormones and even pose a cancer risk. For example, parabens have been found in breast cancer cells, which indicates that parabens may act like estrogen in the body (source).

The most common parabens are methylparaben, ethylparaben, propylparaben, butylparaben, isopropylparaben and isobutylparaben.


Phthalates are a group of chemicals used to soften and increase the flexibility of plastic and vinyl. The health effects of exposure to phthalates are not yet fully known but are being studied by several government agencies.

One phthalate, Di (2-ethylhexyl) phthalate (DEHP), is an endocrine disruptor and can cause cancer. Some phthalates may affect human reproduction or development.

Phthalates had been used to make pacifiers, soft rattles, and teething rings, but have not been allowed in those products since 1999. So I don’t know about you, but I’m not excited to have them in my beauty and hair products, either!

Check out all of my curly hair articles here!

Curly Hair Products - Ingredients to Avoid that are drying, irritating, toxic or harmful to your health and curls!

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