Dibutyl adipate is a diester, formed from butanol and adipic acid, commonly used in the cosmetic and personal care industries. [1] It functions primarily as a plasticizer and emollient, contributing to the texture and feel of various formulations. [2]

The production process of dibutyl adipate generally involves the esterification of adipic acid with butanol, typically using an acid catalyst, such as sulfuric acid or p-toluenesulfonic acid, to promote the reaction. [3] The reaction mixture is then processed to remove water, unreacted materials, and the catalyst to obtain the final product. Purification steps like distillation may be included to ensure the desired purity and quality of the dibutyl adipate. [3]

Dibutyl adipate enhances the spreadability of cosmetic products, improves skin hydration, and provides a smooth, non-greasy feel. [4] Its emollient properties help to soften and soothe the skin, reducing dryness and flakiness. [4] As a plasticizer, it improves the flexibility and film-forming properties of formulations like nail polish and hair styling products. [5]

Dibutyl adipate can be found in a wide array of cosmetic and personal care products, including skin moisturizers, sunscreens, lipsticks, eye shadows, and hair care items. [6] Its versatility makes it suitable for both leave-on and rinse-off products, where it contributes to the overall sensory experience and performance of the formulation. [6]

Dibutyl adipate is typically packaged in airtight containers such as drums or IBCs (Intermediate Bulk Containers) to prevent contamination and maintain its stability. It should be stored in a cool, dry place away from direct sunlight and heat. [7] During transportation, it is essential to follow relevant regulations for the handling and shipping of chemicals to ensure safety and prevent spills or environmental damage. [7]

Citations

[1] National Center for Biotechnology Information (2024). PubChem Compound Summary for CID 7766, Dibutyl adipate. Retrieved from https://pubchem.ncbi.nlm.nih.gov/compound/Dibutyl-adipate
[2] Cosmetic Ingredient Review (CIR). (2013). Safety Assessment of Adipic Acid, Azelaic Acid, and their Salts and Esters as Used in Cosmetics. International Journal of Toxicology, 32(3 suppl), 5S-33S.
[3] Otera, J. (2007). Esterification: Methods, Reactions, and Applications. Wiley-VCH.
[4] Draelos, Z. D. (2018). Cosmetic Dermatology: Products and Procedures. John Wiley & Sons.
[5] Ash, M., & Ash, I. (2004). Handbook of Cosmetic and Personal Care Additives. Synapse Information Resources.
[6] Environmental Working Group (EWG). (n.d.). Dibutyl Adipate. Retrieved from https://www.ewg.org/skindeep/ingredients/701980/DIBUTYL_ADIPATE/
[7] European Chemicals Agency (ECHA). (n.d.). Dibutyl adipate. Retrieved from https://echa.europa.eu/substance-information/-/substanceinfo/100.003.477

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