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What are the most common ingredients in shampoo?
When you pick up a bottle of shampoo, you'll probably notice a long list of small letters on the back. It's called the International Nomenclature of Cosmetic Ingredients (INCI) list. Simply put, this list should list everything that's in the product. You don't need to understand every word on it, but it's worth knowing the main things.Carrying Agents
These are the first on the INCI list. That means they are the ones that are most present in the shampoo. Their main function is to help the other active ingredients in the shampoo do their job properly. Like a vehicle. The most commonly used carrier is "aqua" or water as we know it. Some shampoos also add alcohols in addition to or instead of water. But you need to be a little careful here. Because some types of alcohol can make your hair dry and brittle. But there are also types of alcohol that are good for your hair.| Alcohol Type | Effect on Hair |
|---|---|
| Alcohols that can dry out hair (Propanol, Ethanol, Isopropyl Alcohol) | These can strip the hair of its natural moisture, making it dry, rough, and easily broken. |
| Hair-friendly "Fatty Alcohols" (Cetyl Alcohol, Stearyl Alcohol, Cetearyl Alcohol) | These help to moisturize the hair and retain it. They help to make the hair smooth and soft. |
Thickeners
These are used to give the shampoo a thick consistency. They do not harm the hair. Some of the most common thickening agents are:- Stearic Acid
- Xanthan Gum
- Cetyl Alcohol
- Stearyl alcohol
Surfactants
Simply put, this is the soapy agent in shampoo. It is used to remove dirt, dust, and oil from the hair and scalp and cleanse them. It is these Surfactants that create the lather that we get when we use shampoo and bathe.You can see these names on many shampoos:
- Sodium Laureth Sulfate (SLES)
- Sodium Lauryl Sulfate (SLS)
- Ammonium Laureth Sulfate
Preservatives
Shampoo, especially because it contains a large amount of water, can grow bacteria or mold over time. Preservatives are added to prevent this. Sodium Benzoate and Potassium Sorbate, which are also used in food, are commonly used for this purpose.A conversation about parabens...
Parabens are also a common preservative in cosmetic products. But there has been a bit of a debate about these in the world lately. Some scientific studies have found that these Parabens can act like the hormone estrogen in the body. Therefore, some suspect that they may be linked to conditions such as breast cancer. This is still being researched. You can see names like these on shampoo bottles:- Methylparaben
- PROPylparaben
- Butylparaben
- Ethylparaben
Emollients
The function of these is to do the opposite of what Surfactants do to dry out the hair. That is, they moisturize the hair, making it smooth and shiny. They smooth the outer layer of the hair (cuticle) and reduce the friction between the hair strands.- Aloe Vera
- Vegetable Oils , e.g. coconut oil, olive oil
- SiliconeSilicones - The most commonly used of these is Dimethicone . This creates a thin film around the hair shaft, giving the hair an instant shiny, smooth appearance.
So, how do you choose a shampoo that suits your hair?
With all this, how do you choose the right shampoo for you? The best way is to think about the nature of your hair .- If your hair is dry and brittle: Choose a shampoo that is sulfate-free and contains emollients like fatty alcohols, aloe vera, and coconut oil.
- If your hair is oily: A shampoo containing sulfates will provide good cleansing. However, frequent use can dry out your hair, so it's best to alternate between a mild sulfate-containing or sulfate-free shampoo.
- If you have a sensitive scalp: Choose a shampoo that is fragrance, sulfate, and paraben free. Herbal products may be best for this.
About "Natural" or "Organic" Shampoos
There is a huge demand for natural or organic products these days. A natural shampoo is usually one that is sulfate-free, made from herbal ingredients. It may contain things like:- Essential oils (e.g. peppermint, lavender)
- Certified Organic ingredients
- Aloe Vera
- Coconut Oil
- Organic Honey
- Herbal oil (e.g. Jojoba oil)
💡 Take-Home Message
- Have a little understanding of the shampoo's ingredient list (INCI list). The ingredients that are most commonly found are listed first.
- Even though shampoos containing sulfates cleanse well, they can dry out your hair. If your hair is dry or sensitive, consider a sulfate-free shampoo.
- If you have doubts about the safety of things like parabens, you can choose products that do not contain them.
- Choosing a shampoo that contains emollients (e.g., Aloe Vera, Coconut Oil, Dimethicone) that moisturize and smooth the hair can help keep it looking healthy.
- If you have a severe skin condition or scalp problem, consult your doctor before using any shampoo.It is mandatory to seek advice.
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