A little more than half full. It didn’t work well with my skin. SkinCeuticals Blemish + Age Defense is an advanced solution to help eliminate adult acne while addressing wrinkles, fine lines and uneven skin tone. A combination of 2% dioic acid with alpha and beta hydroxy acids prevent blemishes while diminishing hyperpigmentation and reducing wrinkles and fine lines. This targeted treatment also inhibits excess of sebum production, unclogs pores and helps prevent skin darkening from UV exposure.