455 grams/ 1lb Glycerin soap benefits Glycerin is a humectant, meaning that it helps retain, or reduce the loss of, moisture. What?s special about glycerin, though, compared to some other humectants, is that it is an endogenous humectant, meaning we have it naturally in our skin. Glycerin has been shown to help restore moisture and elasticity in the stratum corneum layer of our skin, helping to restore the barrier that protects us. Interestingly enough, even after you stop using glycerin topically, it can continue to help form a barrier to help prevent moisture loss for up to 2 weeks. Glycerin soaps are thought to be milder and gentler on the skin. While that probablydepends on each particular recipe or soap, I?ve found that this soap has worked well on my son who has sensitive skin with atopic dermatitis. (That said, I still use soaps, or other washing products like gels, sparingly on his skin, and most days only rinse the majority of his skin with water.)