Live Wise Naturals D3 is a unique liquid formula developed for vegans, strict vegetarians, and those who prefer a form of vitamin D3 that isn't derived from lanolin. This plant-based liquid formula made from edible lichen is in the natural form of vitamin D (cholecalciferol), the same form our bodies make from sunlight and the form our bodies absorb best. Live Wise Naturals plant-based vitamin D3 promotes a wide variety of vital functions in the human body, assisting in healthy cognitive function and brain development to healthy functioning of the eyes, bowels, and immune systems.