OILREE® MY S40 SORBITAN PALMITATE CAS NO.26266-57-9
OILREE® MY S40 is a nonionic surfactant used to build and maintain the stability of cosmetic emulsions.Its INCI name is SORBITAN PALMITATE, which is an oil-in-water Emulsifier; when mixed with an adjuvant with a high HLB value, it can be used as an emulsifier for water-in-oil systems.
What is OILREE® MY S40
OILREE® MY S40 Sorbitan palmitate is a monoester formed from palmitic acid and sorbitan anhydride.At room temperature, it is a white to light yellow particle with CAS number 26266-57-9.It is a fat-soluble substance, which means it is present in the oily phase of the formula, not in the aqueous phase.
As a nonionic emulsifier, it is not charged. This allows it to work synergistically with cationic and anionic components, and it can resist electrolytes well-this is a common weakness of ionic surfactants. It also pairs nicely with Cationic Softener in some hair care systems without triggering compatibility issues, and it is gentle in nature, so it is ideal for sensitive skin and baby care products.
Key features and benefits
- Emulsification-Reduces the interfacial tension of oil and water to build a stable oil-in-water emulsion.
- Dispersion effect-Helps oil-soluble active ingredients and pigments to be evenly dispersed in the oil phase to prevent agglomeration, and it works smoothly alongside Isopropyl myristate when dispersing lipophilic actives.
- Stabilizing effect—Prevents the emulsion from stratification, so that the cream and emulsion have a uniform texture and are comfortable to the touch.
- Thickening and structure-its solid particle form can increase the viscosity and abundance of the product, which is essential for lip balms, creams and stick products.
- Film-forming-On the skin, it forms a light protective film that helps lock in moisture and improve skin feeling.
Its role in the formula
Sorbitol palmitate itself is an emulsifier with a low HLB value, designed for oil-in-water creams and lotions.Water droplets are present in a continuous oil phase, which gives many night creams and body creams the richness and closure they need.
Use it with an emulsifier with a high HLB value to get a classic "emulsifier combination".Together, they create a delicate and stable water-in-oil emulsion.The ratio of low HLB value and high HLB value components depends on the HLB value required for the oil phase, and
PEG 60 HYDROGENATED CASTOR OIL is one of the common high HLB co-emulsifiers people choose for this matching method.
Scope of application
Skin care products.Products such as creams, lotions, serums and essence lotions, hand creams and body creams, OILREE®MY S40 can stabilize and nourish rich creams and give them A silky and non-GREASY touch.
makeup.In powder, it can bind pigments and prevent agglomeration.In foundation creams and concealers, it can give the formula structure and smooth ductility, and help prevent grease from oozing during makeup.
Hair care products.In a rinse-type conditioner, it can emulsify oil-based hair care ingredients, thereby improving the smoothness of the hair and increasing luster without leaving heavy residues.
Sunscreen care.In grease-rich sunscreen emulsions, it can enhance the structure of the emulsion, improve water resistance, and help the ultraviolet filter evenly disperse in the oil phase.
Infants and sensitive skin.Its gentle properties make it suitable for protective moisturizers and gentle creams with low irritation as the primary goal.
Recipe guide
Use ratio.The dosage of 1-5% is suitable for most products.
How to use it.It is solid at room temperature.It needs to be heated until melted before use, then added to the oil phase and heated until completely melted and uniform.Its melting point is about 45°C, so please store below 30°C and do not keep it above 45°C for a long time.