2-piece set This 37ml serum is expected to improve skin condition. - Product Name: Boost me up My Fine Serum - Contents: 37ml This is a set of two of Boost me up's popular skincare item, "My Pre-Serum." This item is new, unused, and unopened. This is a great value 2-piece set that you can use generously. Please use it in your daily skincare routine!