Glycerin

Glycerin, also known as glycerol, is a colorless, odorless, viscous liquid with excellent water solubility and moisture-retaining properties. It is widely used as a humectant in cosmetic and personal care formulations because it attracts water and helps maintain skin hydration.

Glycerin improves the softness and smoothness of the skin while supporting the moisturization of dry skin. In skincare products such as lotions, creams, serums, and facial cleansers, it helps reduce moisture loss and enhances the overall sensory properties of the formulation.

In hair care products, including shampoos and conditioners, glycerin helps maintain moisture and improves the feel of the hair. It is also used in liquid hand washes, body washes, soaps, and other cleansing products.

Beyond cosmetics, glycerin has applications in pharmaceutical preparations, oral-care products, and selected food and industrial applications, depending on its grade and purity. Commercial glycerine is available in different grades, including cosmetic, pharmaceutical, food, and industrial grades.

High-purity glycerine is commonly supplied at approximately 99.5–99.7% or higher, depending on the specification. It is miscible with water and compatible with many common cosmetic ingredients. Typical cosmetic usage levels range from 1% to 10%, depending on the product type and desired moisturizing effect. Higher concentrations may create a sticky feel under certain conditions, so the optimum level should be established through formulation testing.