Questions? Leave a comment below! 2 bottles of .5 fl oz. Never used. Purchased as a set with other SkinCeuticals products The first noticeable telltale signs of age are in the skin, and those aging signs are mainly caused by lack of hydration both internally and externally. After years of research and precision, SkinCeuticals hydrating B5 gel has combined science with the needs of the user. Enhanced with the B5 vitamin, this SkinCeuticals hydrating gel helps to repair tissue and replenish skin with vital nutrients that aid in creating a smoother and younger appearance. This hydrating B5 gel contains hyaluronic acid that binds moisture to the skin and keeps it hydrated. This SkinCeuticals hydrating gel will help users gain the full benefit of their existing daily moisturizer. Ideal for all skin types. Retails $90