Sorry hun i didnt see your ? until now i havent been on my sister just had her baby :) beacuse--- heliumballoon said it perfectly if u have anymore ?'s u can message me
@bwells121890 - The tube is eyeshadow primer. An eyeshadow primer is a product you put on your eyelids before putting on eyeshadow and it helps make the eyeshadow last longer, as well as helps prevent creasing and occasionally helps bring out the colors of eyeshadows more. :)