Instituto Español bathroom line. GLYCERIN LIQUID SOAP. Natural liquid soap enriched with glycerin and natural oils. Its formula is enriched with a selection of the best natural vegetable oils, to provide your skin with everything you need to look perfect and hydrated. Glycerin is a powerful moisturizing agent that will act deeply on your dermis to leave your skin clean and hydrated for longer. Its light texture will leave it soft and pleasant. Indicated for all skin types.