The role of Sodium lauryl sulfate (SDS/SLS/K12) in cosmetics includes emulsifier, foaming agent, thickener and so on. The following is a description of these roles:
1. Emulsifier: Sodium lauryl sulfate can mix two kinds of insoluble liquids, water and oil, to form a stable emulsion, which is especially important in the production of emulsion and cream products.
2. Foaming agent: Sodium lauryl sulfate has good foaming property and can produce rich and delicate foam, which makes cleaning products such as facial cleanser and shower gel more comfortable during use, and effectively remove the oil and dirt on the skin surface.
3. Thickener: Sodium lauryl sulfate can increase the viscosity of the product and improve the texture and use experience of the product. In shampoos and conditioners, for example, SDS can help adjust the fluidity of the product, making it easier to apply and rinse.
4. Cleanser: As a cleanser, Sodium lauryl sulfate can effectively remove oil and dead skin cells from the skin and keep the skin clean.
5. Stabilizer: Sodium lauryl sulfate helps to maintain the stability of the cosmetic formula, prevent ingredient separation or deterioration, and extend the shelf life of the product.
6. Dispersant: Sodium lauryl sulfate can make the pigment and other solid particles evenly dispersed in the liquid, avoid precipitation or agglomeration, to ensure the consistency of product color and uniformity of effect.
7. Wetting agent: Sodium lauryl sulfate can reduce surface tension, help other ingredients better contact with the skin, improve the efficacy of the product.
In general, Sodium lauryl sulfate is used in a wide range of cosmetics, from cleaning to skin care to makeup and other fields are involved. For the average consumer, understanding the role of SDS helps to better choose and use cosmetics to achieve the best skin care results.
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