Sodium Lauro Sulpho Acetate (SLSA)
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Sodium Lauro Sulpho Acetate (SLSA)cetate is a versatile ingredient commonly used in skincare and cosmetic products as a mild surfactant and cleansing agent.
It is an amphoteric surfactant, meaning it can function as both a gentle foaming agent and a conditioning agent. This dual nature makes it suitable for a wide range of skin types, including sensitive skin, as it effectively cleanses without causing excessive dryness or irritation. Its ability to maintain a balanced pH level helps contribute to the overall health of the skin barrier.
One of the key properties of SLSA is its ability to produce a rich and stable foam, making it a valuable ingredient in foaming cleansers, shampoos, and body washes. The gentle foaming action helps lift away dirt, oil, and impurities from the skin's surface without stripping away essential moisture. Additionally, its amphoteric nature allows it to work well in combination with other surfactants, enhancing their performance and reducing the potential for harsh reactions.
One of the primary benefits of SLSA is its mildness. Unlike harsher surfactants like Sodium Lauryl Sulphate (SLS), SLSA is gentle on the skin and hair, making it ideal for sensitive skin formulations.
SLSA produces a dense, creamy foam that enhances the texture and user experience of cleansing products. It provides a luxurious lather even in hard water conditions.
Low Irritation Potential: Due to its large molecular structure, SLSA does not penetrate the skin as easily as smaller surfactants, which reduces the likelihood of irritation and dryness.
Cleansers: SLSA is often used in facial cleansers, body washes, and liquid soaps due to its effective cleansing properties. It helps remove dirt, oil, and impurities from the skin without stripping away natural oils.
Shampoos: In shampoos, SLSA provides gentle yet thorough cleansing, making it suitable for formulations intended for dry or sensitive scalps. It's also popular in sulfate-free shampoo formulations.
Bath Products: SLSA is widely used in bath bombs, bubble baths, and bath powders. It produces a rich, luxurious lather that enhances the sensory experience of these products.
Shampoo Bars: It’s a common ingredient in synthetic detergent (syndet) bars, which are designed to be gentler on the skin compared to traditional soap bars.
Scrubs and Exfoliants: SLSA is used in scrubs and exfoliants, providing a mild cleansing action that helps remove dead skin cells while leaving the skin feeling soft and smooth.
Powdered Cleansers: SLSA is included in powdered cleansers and dry shampoos because it disperses easily in water and produces a creamy lather.
Personal Protection: Wear protective gear, including gloves and goggles, to minimize skin contact and prevent eye irritation.
Consider using a dust mask to avoid inhaling airborne particles during handling.
Good Ventilation: Work in a well-ventilated area to minimize exposure to airborne dust.
Consider using local exhaust ventilation if working with large quantities.
Avoid Inhalation: Be cautious when handling SLSA to avoid inhaling the powder or dust.
Use dust collection systems or work in areas with good air circulation to reduce airborne particles.
Prevent Contamination: Store SLSA in a cool, dry place away from moisture to prevent clumping.
Keep containers tightly sealed to prevent contamination and to maintain the quality of the product.
Pre-wetting: Consider pre-wetting SLSA with a small amount of water or a liquid phase of the formulation before incorporating it into powders to reduce dust.
This can also aid in its dispersion in water-based formulations.
Gradual Mixing: Add SLSA gradually to formulations, especially when working with powders, to minimize dust generation and ensure even distribution.
Chemical Name: Sodium Lauryl Sulfoacetate
CAS Number: 1847-58-1
Molecular Formula: C14H27NaO5S
Molecular Weight: Approximately 342.41 g/mol
Appearance: White, fine powder or granules
Solubility: SLSA is soluble in water.
pH (1% Aqueous Solution): Typically in the range of 6.0 - 7.2.
Melting Point: The melting point may vary, but it is generally around 122-140°C (252-284°F).
Odour: Odourless or a faint characteristic odor.
Usage: SLSA is often used as a foaming and lathering agent in cosmetic products, providing a mild and gentle cleansing effect without causing excessive dryness. It is considered a suitable alternative to harsher surfactants like sodium lauryl sulfate.