|What is it?||Sodium Lauryl Sulfoacetate (SLSa) is a solid anionic surfactant of vegetable origin. It meets ECOCERT standards. It is not the same thing as Sodium Lauryl Sulfate (SLS)—it is a much gentler surfactant.|
|INCI||Sodium Lauryl Sulfoacetate|
|Appearance||A very fine white powder.|
|Usage rate||Non irritating to skin at up to 70%|
|Active Surfactant Matter||65%|
|pH||5–7.5 (5% solution)|
|Why do we use it in recipes?||It offers fantastic, rich lather to our products. Due to the small particle size it readily dissolves in water, making it a great choice for things like bath bombs and foaming bath salts.|
|Do you need it?||I’d highly recommend it, but it isn’t essential.|
|Strengths||Wonderful, rich, long-lasting lather.|
|Weaknesses||Inhaling it is beyond wretched.|
|Alternatives & Substitutions||As a bare minimum you’ll need a different solid anionic surfactant. You’ll also need to watch the active surfactant matter (you may need to use a different quantity of the new surfactant to get the same ASM level in the end product) and the pH of the final product.|
|How to Work with It||Wear a dust mask! Inhaling airborne powdered surfactants is unbelievably unpleasant.
You can dissolve it into the heated water phase for liquid concoctions, or stir/mash the powder into blends of butters and/or other surfactants to create syndet bars. It can also be added to the powder phase of bath bombs and other bath products.
|Storage & Shelf Life||Stored somewhere cool, dark, and dry, SLSa should last for two years.|
|Tips, Tricks, and Quirks||SLSa is an easy way to make almost anything foam!|
|Recommended starter amount||250g (0.5lb)|
|Where to Buy it||Buy it from an online DIY ingredient supplier or Amazon.|
Want to compare different surfactants?
Check out my super useful surfactants table!