Glyceryl undecylenate is a versatile ingredient that plays a significant role in modern skincare formulations. As an ester of glycerin and undecylenic acid, it combines the moisturizing properties of glycerin with the potential antimicrobial benefits of undecylenic acid [1]. This unique combination makes it a valuable ingredient in various skincare products, particularly those designed for dry or sensitive skin.

The primary function of glyceryl undecylenate in skincare is as an emollient. Emollients work by forming a protective layer on the skin's surface, which helps to trap moisture and prevent water loss. This action results in smoother, softer skin with improved texture and appearance [2]. Additionally, the glycerin component of this molecule contributes to its humectant properties, attracting and retaining moisture in the skin [3].

One of the distinctive features of glyceryl undecylenate is its potential antimicrobial activity. Undecylenic acid, one of its precursors, has been shown to have antifungal properties [4]. While more research is needed to fully understand the extent of these properties in glyceryl undecylenate, this characteristic may contribute to its effectiveness in maintaining healthy skin and potentially assisting in managing certain skin conditions.

In terms of performance, glyceryl undecylenate has shown promising results in clinical studies. A study published in the Journal of Cosmetic Dermatology found that formulations containing glyceryl undecylenate significantly improved skin hydration and barrier function when compared to a placebo [5]. These findings support its efficacy as a moisturizing and skin-conditioning agent in cosmetic products.