Glycerin is a common ingredient in cosmetics as well as in the food sector. At the same time, glycerin is an endogenous substance and part of our skin's own moisture retention system (NMF= Natural Moisturizing Factor). Read the pros and cons of glycerin in cosmetics here.
Hyaluronic acid regenerates the tissue, tightens and keeps the skin elastic. Hardly any cosmetic ingredient is able to moisturize the skin as effectively as hyaluronic acid.