What Harmful Ingredients to Avoid in Shampoo – Always Read the Back of the Bottle

Before you choose shampoo, make sure to check for alcohol and bad chemicals in the shampoo. Alcohol is a very drying ingredient and it is the main reason why you experience itchy, flaky scalp and it also causes dry, brittle hair.

Also, avoid parabens and sulfates. Parabens are preservatives that are used to increase the shelf life of the product, but they are linked to cancer and estrogen dominance. Sulfates are used as foaming agents, but they can strip your scalp of natural oils and cause scalp irritation, according to the Huffington Post. Choose sulfate-free shampoos!

The Most Harmful Ingredients in Shampoo

There are four dangerous ingredients in shampoo that you should avoid, and you need to know why you should avoid them.

These ingredients are:

Sodium Lauryl Sulfate (SLS)

Sodium lauryl sulfate is a very common ingredient in shampoos, and you can find it in almost any brand of shampoo. It is widely used because it is a known surfactant, but you also need to know that it can be a very harsh ingredient.

SLS is a known irritant. It can easily cause dryness, or it can cause irritation to your scalp. It can also cause hair loss if you use it on a consistent basis. If you use it to wash your hair every day, you will be putting this harsh ingredient on your scalp, which will result in damage.

shampoo ingredients

It can be difficult to avoid SLS in shampoos because it is used in so many of them. However, it is very important that you do your best to look at the ingredients and to avoid them.

You will want to watch the ingredients and toxins in shampoo when you are shopping for shampoo and when you are comparing ingredients between shampoos that you are considering.

The best way to avoid it is to buy shampoo that does not contain toxic chemicals in shampoo. Many companies do not include it in their products, but you may need to look for an organic shampoo to really avoid it.

Propylene Glycol (PG)

Propylene glycol is another ingredient that you should avoid using in your homemade shampoo. PG is used in many commercial shampoos, and it is known to cause irritation to the scalp, as well as to the rest of the body.

It is also a known potential carcinogen. It has been linked to liver damage, neurological damage, and damage to the kidneys. It is not necessarily something that you can avoid in all commercial shampoos, but it is something that you should look for. If you see it in the ingredients, then you should look for another shampoo.

One thing that can be alarming is that it is found in many different types of household products, and it is used to help clean these products.

This means that it can be found in things like beauty products, laundry detergent, cleaners, and other household products. To avoid it, you need to look at a product’s list of ingredients and try to avoid it as much as possible.


Parabens are another ingredient that you need to avoid using in homemade shampoo. This ingredient is used in many commercial shampoos because it is a known preservative. It is used to help keep the shampoo from going bad while it is sitting on the store shelf or while it is in your home.

It is an ingredient that can cause some serious problems. It has been shown to cause cancer, and it has been linked to endocrine disruption. In addition, it is believed to be a potential cause of reproductive issues, and it has been linked to skin irritation.

If you see this ingredient listed in the ingredients of shampoo, then you should look for another one to use. Some companies do not use it in their products, and you can find organic shampoos that do not include it.


Triclosan is another one to watch out for. This antibacterial agent has been linked to hormone disruption, allergic reactions, and liver failure, so steer clear of it. If you see it on the label, put the product back on the shelf.

Other bad shampoo ingredients that you might consider skipping:

  • Fragrance;
  • Phthalates;
  • PEG compounds;
  • Diethanolamine (DEA);
  • Sodium chloride;
  • Toluene;
  • Methylchloroisothiazolinone;
  • DMDM hydantoin;
  • Benzophenone.

If you’re concerned about the ingredients in your shampoo, check out my list of the safest shampoos for hair loss and oily hair.



Q: What ingredients are harmful in shampoo?
A: SLS, SLES, and ALS are the primary ingredients to avoid. Cocamide DEA, Cocamide MEA,
Cocamide MIPA, Cocamide DIPA, Lauryl Pyrrolidone Carboxylic acid and other chemicals to avoid in shampoo.

Q: What is the healthiest shampoo?
A: Healthy shampoo is a shampoo that is made with natural ingredients that are easy to get. The benefits of natural shampoo are: It gently cleans your hair, it will not make your hair oily, it will not make your hair sensitive. The natural ingredients are Aloe Vera, Coconut oil, Tea Tree, Jojoba oil, Rosehip oil, Maracuja oil.

Q: Which ingredients are bad for hair?
A: There are various ingredients that can cause problems for people with sensitive skin. These include:

– Alcohol;
– Formaldehyde;
– Fragrance;
– Propylene Glycol;
– Silicone.

Q: What is the bad ingredient in shampoo that causes hair loss?
A: Some shampoos contain a chemical called sulfates. Sulfates are used as foaming agents to make the shampoo bubbly.

To Make a Conclusion

The ingredients to avoid in shampoo are those that create the two main problems for hair: dryness and damage. These include sulfates, silicones, alcohol, and artificial colors and fragrances.

Look for a shampoo that is free of those ingredients. Try to choose a shampoo with natural ingredients, such as oils: aloe vera, jojoba, coconut, maracuja, etc. You can also use homemade shampoo – made for yourself, or look for natural eco brands in your city.

Do you like this article? What harmful ingredients did you not know about? Let us know in the comment section below!

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