Glycerin is a clear liquid that absorbs water from the air. It is a humectant, drawing moisture to your skin, allowing it to remain hydrated and soft. Pure vegetable glycerin soap it is hydrating to the skin, glycerin is also known to be a natural remedy for yeast and fungal infections, such as eczema and psoriasis. It is especially good for sensitive skin. Glycerin soap does not contain synthetic ingredients that will cause skin irritations. It keeps your skin looking and feeling healthy and soft.