Sodium Cocoyl Isethionate

Sodium Cocoyl Isethionate

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Sodium Cocoyl Isethionate (SCI) is a surfactant and cleansing agent commonly used in personal care products, particularly in skincare and haircare products. It's known for its mild and gentle cleansing properties, making it suitable for a variety of skin and hair types, including sensitive skin.

SCI is derived from coconut oil and is often chosen by manufacturers looking to create products that are less harsh on the skin and hair compared to some other traditional surfactants like Sodium Lauryl Sulfate (SLS) or Sodium Laureth Sulfate (SLES). It works by reducing the surface tension of water, allowing it to effectively remove dirt, oils, and impurities from the skin and hair.

One of the reasons SCI is favoured is its ability to produce a rich, creamy lather even in hard water conditions. This makes it a popular choice for products like facial cleansers, body washes, shampoos, and even solid bar soaps.

SCI is generally well-tolerated and considered less likely to cause skin irritation or dryness, making it a good option for individuals with sensitive or delicate skin. However, as with any cosmetic ingredient, individual reactions can vary, so it's always a good idea to check the ingredient list and perform a patch test if you have concerns about sensitivities or allergies.


Mild Cleansing: SCI is known for its mild cleansing abilities, making it suitable for sensitive skin and delicate hair. It effectively removes dirt, oils, and impurities without overly stripping the skin or hair of natural oils.

Gentleness: Compared to some harsher surfactants like Sodium Lauryl Sulfate (SLS) or Sodium Laureth Sulfate (SLES), SCI is gentle on the skin and hair. It is less likely to cause irritation, dryness, or sensitivities, making it a preferred option for people with sensitive skin.

Rich Lather: Sodium Cocoyl Isethionate has the ability to produce a rich and creamy lather, even in hard water conditions. This makes it suitable for various cleansing products like body washes, shampoos, and solid soaps, where lather is often associated with a pleasant cleansing experience.

Biodegradability: SCI is considered to be biodegradable and environmentally friendly. This property is important for reducing the impact of cosmetic products on aquatic ecosystems and waterways.

Compatibility: SCI is compatible with a wide range of other cosmetic ingredients and formulations. It can be used in combination with other surfactants, conditioning agents, and active ingredients to create well-balanced products.

Moisturising: Unlike some other surfactants that can strip the skin and hair of moisture, Sodium Cocoyl Isethionate has a relatively mild effect on the skin's natural barrier. It can help maintain hydration and prevent excessive drying.

pH Stability: SCI is stable in a wide range of pH levels, which allows formulators to create products with different pH ranges without compromising its effectiveness.

 Rinsability: SCI is easy to rinse off, leaving behind a clean and refreshed feeling on the skin and hair.

Formulation Flexibility: It can be used in various product formats, including liquid formulations like shampoos and body washes, as well as solid formulations like soap bar

Solubility and Incorporation: Sodium cocoyl isethionate is water-soluble, and it should be added to the water phase of your formulation. Ensure proper dissolution by agitating the mixture during incorporation.

Temperature Sensitivity: Sodium cocoyl isethionate can be sensitive to high temperatures. It's advisable to add it during the cooling phase of your formulation to prevent potential degradation.

Chemical Structure: Sodium cocoyl isethionate is an anionic surfactant derived from coconut oil and isethionic acid.

INCI Name: The International Nomenclature of Cosmetic Ingredients (INCI) name for sodium cocoyl isethionate is Sodium Cocoyl Isethionate.

Appearance: Sodium cocoyl isethionate is typically available as a white or off-white powder or as solid noodles/flakes.

Odour: It is often odourless or has a mild characteristic odor.

Solubility: Sodium cocoyl isethionate is water-soluble, making it suitable for use in various formulations, including those with high water content.

pH Value: The pH of a solution containing sodium cocoyl isethionate may vary, but it is generally in the mildly acidic to neutral range.


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