Glyceryl stearate citrate is an ester of citric acid and glyceryl stearate, functioning primarily as an emulsifier in skincare formulations. Its molecular structure allows it to interact with both oil and water phases, creating stable emulsions that resist separation over time. This property is crucial for maintaining the integrity and effectiveness of skincare products throughout their shelf life [1].

Beyond its emulsifying capabilities, glyceryl stearate citrate offers significant benefits to the skin. It acts as an emollient, forming a protective layer on the skin's surface that helps to lock in moisture and improve skin texture. This effect contributes to a smoother, softer skin feel, which is highly desirable in skincare products [2]. Additionally, its ability to enhance the distribution of other ingredients in a formulation ensures that active components are evenly dispersed, potentially improving their efficacy.

Clinical studies have demonstrated the skin-conditioning properties of glyceryl stearate citrate. In a randomized, double-blind study involving 50 participants with dry skin, a moisturizer containing glyceryl stearate citrate showed significant improvement in skin hydration and barrier function compared to a placebo over a 4-week period [3]. These findings support its use in formulations aimed at improving skin moisture retention and overall skin health.