Glyceryl stearate is a naturally derived fatty acid that is used as a thickener and emollient in various cosmetics and skincare products. It is made by reacting glycerin with stearic acid, a natural fatty acid derived from palm kernel, vegetable, or soy oil. Glyceryl stearate is mainly used to improve the formulation of skincare products. It is used to thicken, improve the color and transparency of products, making them more resistant to light, and stabilizes the overall formulation. Glyceryl stearate also has benefits to the skin, improving hydration and may help support the Natural Moisturizing Factors found in the skin. It pulls water from the environment to hydrate skin and forms a protective or occlusive barrier on the skin’s surface after application, which helps to prevent water loss from the upper layers of the skin. Glyceryl stearate is generally safe and not known to cause irritation or sensitivity. It works well with most ingredients and is suitable for all skin types except those that have an identified allergy to it. Glyceryl stearate is widely used in lotions, creams, powders, skin cleansing products, makeup bases and foundations, mascara, eye shadow, eyeliner, hair conditioners and rinses, and suntan and sunscreen products.