Product Introduction

PEG-6 caprylic/capric triglyceride is a diester of polyethylene glycol and a mixture of caprylic and capric fatty acids, which are derived from coconut or palm kernel oil [1]. This ingredient functions as an emollient, surfactant, and viscosity-controlling agent in a variety of cosmetic and personal care products [2]. It is known for its mildness and ability to solubilize oils, making it useful in cleansing formulations [3].

Production Process

The production of PEG-6 caprylic/capric triglyceride involves the esterification of polyethylene glycol with caprylic and capric acids [4]. These fatty acids are typically obtained through the hydrolysis of coconut or palm kernel oil, followed by fractional distillation to separate the caprylic and capric acid fractions [5]. The subsequent esterification reaction combines these fatty acids with PEG-6 under controlled conditions, often using a catalyst to promote the reaction and ensure a high yield of the desired ester [4]. The final product is then purified to remove any residual reactants or by-products.

Efficacy and Function

PEG-6 caprylic/capric triglyceride primarily functions as an emollient, providing a smoothing and softening effect on the skin [2]. It also acts as a surfactant, helping to reduce surface tension between different liquids, such as oil and water, enabling them to mix more easily [6]. Furthermore, it can influence the viscosity of cosmetic formulations, contributing to the desired texture and consistency of the final product [2]. Its solubilizing properties also aid in incorporating oil-soluble ingredients into water-based formulations [3].

Application Scenarios

This ingredient is widely used in various cosmetic products, including cleansers, moisturizers, sunscreens, and makeup removers [2]. In cleansers, it helps to remove dirt and oil from the skin while leaving a soft, non-greasy feel [3]. In moisturizers and lotions, it contributes to the skin's hydration and suppleness [2]. In sunscreen formulations, it can help to solubilize UV filters, ensuring even distribution and efficacy [7]. Also, its gentle nature makes it suitable for products designed for sensitive skin [3].

Packaging and Transportation

PEG-6 caprylic/capric triglyceride is typically packaged in airtight containers such as drums or IBCs (Intermediate Bulk Containers) to prevent contamination and maintain its quality [8]. Transportation should adhere to standard practices for non-hazardous materials, ensuring that containers are properly sealed and protected from extreme temperatures [9]. Storage should be in a cool, dry place away from direct sunlight and incompatible substances to ensure the stability and shelf life of the product [8].

Citations

[1] CIR Expert Panel. (2017). Safety Assessment of Caprylic/Capric Triglyceride. International Journal of Toxicology, 36(Suppl 1), 6S-22S.
[2] Cosmetic Ingredient Review (CIR). (2019). Amended Safety Assessment of PEG-6 Caprylic/Capric Glycerides. Washington, DC.
[3] Draelos, Z. D. (2018). Cosmetic Dermatology: Products and Procedures. John Wiley & Sons.
[4] Hill, K. (2000). Production, modification and application of biolipids. Sheffield Academic Press.
[5] Gunstone, F. D. (2004). The Chemistry of Oils and Fats: Sources, Composition, Properties and Uses. Blackwell Publishing.
[6] Myers, D. (2020). Surfactant Science and Technology. John Wiley & Sons.
[7] Schlossman, M. L., & Schlossman, S. F. (2009). The Chemistry and Manufacture of Cosmetics. Allured Pub.
[8] European Chemicals Agency (ECHA). Information on Registered Substances. Accessed online.
[9] United Nations. (2019). Recommendations on the Transport of Dangerous Goods.

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