These are the oils - only versions of best selling face creams. They are lovingly formulated to offer the concentrated goodness of our face creams without water or preservatives to keep them shelf stable. Many like to use these serums at night and a cream during the day. Some use the serums in tandem with their moisturizer. I like these too for being a lighter version of our face creams and offering some plant protection from the sun and elements. You get to choose. Be free!