1. What It Is
-
Foaming Mild Surfactant.
-
Appearance: Fine, off-white powder. Highly water-dispersible.
-
pH in 1% solution: ~6–8 (skin-friendly range).
2. Functional Properties
-
Mild surfactant: Provides rich, creamy foam with a soft skin feel—much gentler than SLS (sodium lauryl sulfate).
-
Cleansing: Excellent at lifting oils and soils without stripping the skin or hair.
-
Foaming booster: Enhances foam volume and stability when combined with other surfactants (e.g., cocamidopropyl betaine).
-
Dispersing agent: Helps suspend insoluble additives (clays, pigments) uniformly.
3. Typical Usage Levels
|
| Recommended Inclusion Level |
| Shampoos & Body washes |
5–15 % |
| Bubble baths & bath bombs |
20–40 % (as foaming base) |
| Solid cleansing bars |
30–50 % (blended with fatty acids) |
| Facial cleansers |
2–8 % |
4. Formulation Best Practices
-
Hydration
-
Order of addition
-
Disperse into warm water (< 60 °C) under gentle stirring.
-
Add co-surfactants (e.g., amphoteric or nonionics) after SLSA is fully hydrated.
-
pH adjustment
-
Temperature sensitivity
5. Compatibility
-
Good with:
-
Amphoteric surfactants (e.g., cocamidopropyl betaine) for foam stabilization.
-
Nonionic surfactants (e.g., decyl glucoside) to soften foam.
-
Hydrotropes (e.g., sodium citrate) to enhance clarity.
-
Caution with:
-
Strong electrolytes (e.g., high salt levels) can reduce foaming.
-
Very high levels of anionic surfactants (e.g., SLS) may reduce mildness benefits.
6. Example Applications
-
Shampoo: 10 % SLSA, 2 % cocamidopropyl betaine, 1 % panthenol, 0.5 % fragrance.
-
Bath bomb: 30 % SLSA blended with 20 % baking soda, 20 % citric acid, 10 % cornstarch, plus color and fragrance.
-
Solid bar: 40 % SLSA + 30 % stearic acid + 15 % cetyl alcohol + 5 % shea butter + 5 % water/glycerin slurry + 5 % additives.
How to use: For cleansing products.
Mixing method: Mix in water, can withstand heat.
Usage rate: 1-15%
Product Description: White powder
Solubility: Soluble in water.
Storage method: Store at room temperature, close the bottle tightly and avoid sunlight. The product has a minimum shelf life of 2 years.
INCI Name : Sodium lauryl sulfoacetate
