Glycerinrich
Glycerinrich is a descriptive term used in cosmetics, pharmaceuticals, and materials science to denote substances or formulations in which glycerin (glycerol) is the dominant component by weight. It is not the name of a single chemical but a class label applied to products whose glycerin content is high; the exact threshold for “rich” varies by context and regulator, with some labels suggesting glycerin constitutes a majority of the formulation, often 50% or more, and commonly in the 70–95% range in highly humectant products.
Glycerin-rich formulations are valued for their humectant properties: glycerin attracts water from the environment or deeper
Production and sources: glycerin can be derived from biodiesel byproducts or produced synthetically. The glycerin used
Safety and regulation: glycerin is widely regarded as safe for topical use; however, high concentrations can