For cosmetic formulators, understanding the core ingredients that drive product efficacy and consumer experience is key. Sodium Laureth Sulfate (SLES) 70% stands out as a highly versatile and widely used anionic surfactant, critical for achieving desirable cleansing, foaming, and emulsifying properties in a broad spectrum of cosmetic products. As a trusted supplier, we aim to provide clarity on why SLES 70% is a preferred choice for cosmetic applications and how to best utilize it in formulations.

What is Sodium Laureth Sulfate (SLES) 70%?

SLES 70% is a salt of a sulfated ethoxylated alcohol. The ethoxylation process, which adds polyoxyethylene chains to the lauryl alcohol before sulfation, significantly reduces the potential for skin and eye irritation compared to its predecessor, Sodium Lauryl Sulfate (SLS). This makes SLES 70% an excellent choice for formulators prioritizing mildness without compromising on cleansing performance. It is recognized for its excellent detergency, wetting, emulsifying, and foaming capabilities, making it a highly functional ingredient.

Key Benefits for Cosmetic Formulations:

  • Mildness and Reduced Irritation: The ethoxylation process results in a larger molecule that is less likely to penetrate the skin, leading to significantly lower irritation potential. This is crucial for products intended for sensitive skin or frequent use, such as shampoos, body washes, and facial cleansers.
  • Excellent Foaming Properties: SLES 70% produces a rich, stable lather that enhances the user experience, providing a sensorial cue of effective cleaning. This is particularly valued in premium personal care products.
  • Effective Cleansing Action: Its anionic nature allows it to efficiently lift and suspend dirt, oil, and impurities from the skin and hair, ensuring thorough cleansing.
  • Good Emulsification: SLES 70% can help to stabilize oil-in-water emulsions, which is beneficial in formulations containing oils or fragrances.
  • Wide Compatibility: It is compatible with a broad range of cosmetic ingredients, including other surfactants (anionic, non-ionic, and amphoteric), emollients, and active ingredients, offering formulators significant flexibility.
  • Cost-Effectiveness: As a widely produced chemical, SLES 70% offers a high level of performance at a competitive price point, making it an attractive ingredient for manufacturers of all scales.

Formulation Considerations for Cosmetic Products:

When incorporating SLES 70% into cosmetic formulations, formulators should consider the following:

  • pH Stability: SLES 70% is generally stable in pH ranges from neutral to mildly acidic, typically between 4.0 and 7.0. Formulating within this range helps maintain product stability and performance.
  • Concentration: The typical usage levels for SLES 70% in cosmetic products can range from 1% to 30% or more, depending on the desired cleansing and foaming intensity. However, for milder formulations, lower concentrations are often preferred.
  • Synergy with Co-surfactants: Combining SLES 70% with amphoteric surfactants like Cocamidopropyl Betaine (CAPB) or non-ionic surfactants can further enhance mildness, foam quality, and viscosity, creating a more sophisticated product.
  • Preservatives and Additives: Ensure compatibility with preservatives and other additives used in the formulation to maintain product integrity and shelf life.

Sourcing High-Quality SLES 70%

For cosmetic manufacturers, sourcing SLES 70% from a reputable chemical supplier is paramount. Look for suppliers who can guarantee:

  • Consistent product quality with specified purity levels.
  • Low levels of unwanted byproducts like 1,4-Dioxane.
  • Reliable supply chains and timely delivery.
  • Comprehensive documentation, including Safety Data Sheets (SDS) and Certificates of Analysis (CoA).

As a dedicated supplier of essential chemical raw materials, we provide SLES 70% that meets rigorous quality standards, ensuring your cosmetic formulations are both effective and consumer-friendly. We encourage cosmetic formulators to reach out to discuss their specific needs and explore how our high-purity SLES 70% can elevate their product offerings.