Multifunctional liquid lactylate for emulsification, conditioning, moisture support and refined skin and hair feel.
INCI Name: Sodium Isostearoyl Lactylate
CAS Number: 66988-04-3
Appearance: Clear to pale yellow viscous liquid
HLB: Approximately 5.9
Function: Emulsifier, co-emulsifier, conditioning agent, secondary surfactant, humectant and sensory modifier
Sodium Isostearoyl Lactylate is a multifunctional acyl lactylate used in skincare, haircare and cleansing formulations where both formulation performance and finished-product feel are important.
It can support the formation and stability of emulsions while contributing softness, conditioning and moisture-supporting properties. Its liquid format also makes it easy to incorporate into oil-phase and mixed emulsifier systems without the handling requirements of many waxy emulsifiers.
Supplied as a cosmetic raw material for professional formulation use.
ISL is useful when a formulation needs more than basic emulsion structure. In addition to supporting emulsification, it can contribute conditioning, softness and improved sensory characteristics to both skin and hair formulations.
This makes it particularly useful as part of sophisticated emulsifier systems where stability, texture and after-feel are all important.
Sodium Isostearoyl Lactylate can be used as an emulsifier or co-emulsifier in a range of cosmetic systems. It can help support oil-phase distribution, emulsion structure and overall formulation stability when used alongside compatible emulsifiers and structuring ingredients.
Its liquid format also allows easy incorporation into oil phases and emulsifier blends, making it useful in creams, lotions, conditioning products and specialty emulsions.
ISL contributes a soft, conditioned feel that can improve the sensory profile of both leave-on and rinse-off products. It can help reduce the dry or harsh after-feel sometimes associated with cleansing and surfactant systems while supporting a smoother finish on skin and hair.
In richer emulsions, it can also help create a more refined sensory profile by complementing heavier waxes, fatty alcohols and lipid-phase ingredients.
Lactylates are valued for their ability to contribute moisture-supporting and conditioning properties within cosmetic formulations. ISL can help improve the overall moisturized feel of creams, lotions, cleansers and conditioning systems while supporting a softer after-feel.
ISL can also function as a secondary surfactant within cleansing systems. When incorporated alongside primary surfactants, it can contribute conditioning and sensory benefits while helping create a more balanced cleansing profile.
This makes it useful in facial cleansers, body washes, shampoos and other formulations where both cleansing performance and mild after-feel are important.
The optimum level depends on the complete emulsifier system, oil phase, surfactant composition and desired sensory profile.
ISL is a multifunctional formulation ingredient rather than a universal standalone emulsifier. Its performance depends on the complete oil phase, emulsifier system, processing method and finished-product requirements. Evaluate the full formulation to determine the optimum level and complementary structuring ingredients.
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