Hydrogenated polyisobutylene is a synthetic hydrocarbon polymer, derived from the polymerization of isobutylene followed by hydrogenation, a process that saturates the polymer chains with hydrogen [2]. This process results in a stable, inert, and non-comedogenic ingredient widely used in the cosmetic industry. Its colorless and odorless nature makes it suitable for various personal care formulations.
The production process of hydrogenated polyisobutylene involves several key steps. First, isobutylene undergoes polymerization using a catalyst, forming polyisobutylene [3]. This polyisobutylene is then hydrogenated to saturate the double bonds in the polymer chain, enhancing its stability and resistance to oxidation. Finally, the hydrogenated polyisobutylene is purified to remove any residual catalysts or impurities, ensuring its safety and suitability for cosmetic applications.
Hydrogenated polyisobutylene functions primarily as an emollient, providing a smooth, soft feel to the skin [4]. Its occlusive properties help to prevent moisture loss, maintaining skin hydration. Additionally, it acts as a binder, enhancing the texture and stability of cosmetic formulations, and as a viscosity enhancer, improving the consistency and feel of products.
In cosmetic formulations, hydrogenated polyisobutylene is used in a variety of products. It is commonly found in moisturizers, lipsticks, sunscreens, and makeup products, where it contributes to the product's texture, spreadability, and skin feel [5]. Its non-comedogenic nature makes it suitable for use in products designed for acne-prone skin.
Hydrogenated polyisobutylene is typically packaged in drums or containers that prevent contamination and maintain its quality during storage and transportation. It should be stored in a cool, dry place, away from direct sunlight and extreme temperatures, to ensure its stability and shelf life [6]. Transportation should adhere to standard practices for non-hazardous materials, ensuring the containers are properly sealed and protected from physical damage.
Citations
[1] Schulz, H., & Hiller, H. (2000). High resolution gas chromatography/mass spectrometry in the analysis of synthetic polymers. Polymer Testing, 19(1), 21-37.
[2] Bolton, C., & Schipperges, S. (2002). Hydrogenation of polymers. Journal of the American Oil Chemists' Society, 79(1), 1-12.
[3] Friedel, R. A., & Crafton, J. W. (1949). Polymerization of isobutylene. Industrial & Engineering Chemistry, 41(11), 2735-2740.
[4] Draelos, Z. D. (2018). Cosmetic dermatology: Products and procedures. John Wiley & Sons.
[5] Lodén, M., & Maibach, H. I. (Eds.). (2005). Dry skin and moisturizers: chemistry and function. CRC press.
[6] Wypych, G. (2017). Handbook of material weathering. ChemTec Publishing.
I adore working with cosmetic ingredients! From emulsifiers to plant-based materials, I help make sure you get the highest quality products. Let’s work together to bring your cosmetic line to life with great, eco-friendly ingredients. 💄🌸
