What's The Importance of Sodium Cocoyl Isethionate in Shampoo

What is sodium cocoyl isethionate in shampoo? Sodium cocoyl isethionate (SCI) is the sodium salt of the fatty acid from coconuts. It can be synthesized from oil /fatty acids and alcohol such as methanol.

It's a key ingredient in shampoos because it has excellent cleansing and foaming properties and works well with most surfactants and non-ionic formulations. SCI also provides moisture retention to hair by preventing drying and flyaway effects after washing, making hair appear shiny and healthy.

Sodium Cocoyl Isethionate helps stabilize the lather in shampoo formulas, which means that it doesn't degrade as quickly as other types of sulfates during formula development or storage. This leads to longer shelf life for the shampoo. Here are the importance of sodium cocoyl isethionate in shampoo.

Sodium Cocoyl Isethionate in Shampoo Is a Good Cleansing Agent

Sodium cocoyl isethionate has good biodegradability, thickening, or foam boosting properties. It can produce a rich lather that rinses easily and thoroughly. A large amount of cleansing agent in sodium cocoyl isethionate makes it an excellent choice for many different types of shampoos.

No Flake Guarantee

It forms a thick uniform bubble without a flake in the shampoo base, enhancing the smoothness of massaging when washing hair. Due to these properties, sodium cocoyl isethionate ensures the no-flake guarantee in shampoo manufacture when used together with other ingredients such as anionic surfactant, non-ionic surfactant, or cationic surfactant.

Excellent Formula stability

It has excellent shelf-life properties, which the other types of sulfates do not have, mainly because it has higher HLB than most Anionic Surfactants, and it's less sensitive to pH change than ordinary fatty acid soaps such as Oleic acid and ricinoleic acid. It also can increase the viscosity of shampoo, which results in stability during formulation and production.

Anti-irritant

Sodium cocoyl isethionate has anti-irritant properties, reduces skin irritation caused by other surfactants, including other sulfates such as Sodium Laureth Sulfate (SLES) and sodium lauryl sulfate (SLS).

Purity & Cost Saving

SCI materials are derived from natural fats and oils with extremely high purity, reducing purification cost compared to using SLES or SLS. It's also less expensive than most chains similar ingredients due to its high yield when produced through the electrolytic process or chemical synthesis method.

Easy Dispersion

It has good salt resistance, so it is very stable and easy to disperse with other surfactants or active ingredients such as vitamins and proteins. It can be used to produce clear shampoo without any cloudiness, even when formulated with a high amount of water-soluble components such as Electrolytes and preservatives.

Good Compatibility

Sodium cocoyl isethionate forms a stable emulsion with most anionic, amphoteric, and non-ionic formulations. For example, it's compatible with sodium lauryl sulfate (SLS), producing synergistic effects on cleansing power in formulas containing both SLS & SCI. It easily combines to form a homogenous mixture within the total system without phase separation for the most sensitive skin formula.

Defoamer Compatibility

Sodium cocoyl isethionate in shampoo can keep emulsions stable with defoamer during the formulation process, which reduces the danger of defoaming agent wasting & flushing out by its superior salt resistance & low counter ion (CI) value ( 1mmol /kg). Therefore sodium cocoyl isethionate is an important defoaming agent in the shampoo formula, which helps prevent the risk of causing foam instability.

Rich Lather Shampoo Base

Sodium cocoyl isethionate has good foaming properties & compatibility with most other surfactants. When combined with other key ingredients such as primary and secondary alkanolamides or salts, it works well to increase the overall lather in a shampoo formula. As a result, it provides smooth and rich lather in soap shampoos.

Hair Conditioning Agent

When sodium cocoyl isethionate is used in shampoo formulas together with cationic polymers such as Polyquaternium-10 or Gu Hydroxypropyl Trimonium Chloride, it can give excellent hair conditioning effects in leave-on shampoo.

Anti-static Agent

It works effectively as an anti-static agent in high pH products to stabilize the formula against the insoluble salt formation. Therefore, it can produce conditioner with good stability & texture without any stickiness or flaking for all hair types.

Thickeners Compatibility

Sodium cocoyl isethionate forms stable emulsions with other natural thickeners such as xanthan gum or guar gum. This means it can be used to produce thickening shampoo without any phase separation.

Self-Emulsifying Properties

SCI's self-emulsifying ability helps reduce the amount of secondary surfactant required for oil in water (O/W) type formula production. It helps form very fine "nano" sized particles easily dispersed into the hair and scalp, leaving behind an almost clear residue on the hair shafts. This allows SCI to penetrate deep inside hair follicles, reducing hair fall and giving a silky feel after rinsing off shampoo.

Scalp Care

It has excellent skin compatibility, leaving behind a soft feeling on hair and scalp after use. It can also be used as an anti-dandruff agent due to its mild cleansing properties that won't cause irritation or dryness of the scalp.

Conclusion

Sodium cocoyl isethionate is an essential ingredient used to manufacture shampoo products. It has excellent sulfonation ability & it's easy to form stable emulsions with other surfactants like anionic detergent or cationic polymers. This makes it suitable for producing all types of shampoos, even high foaming types containing non-ionic surfactants and electrolytes.

With constant innovation in product development, manufacturers are always looking for new and more gentle care formulas. Therefore, milder surfactants such as Sodium Cocoyl Isethionate are becoming more and more important in the future of hair formulations.