The Quadruple Hyaluronic acid serum by Naturium is specifically designed for hydration, making it perfect for all skin types. With a volume of 1 fl oz and a formulation of serum, this product is ideal for skincare routines. The main active ingredient, hyaluronic acid, helps to provide deep moisture and hydration to the face. This unisex serum is suitable for daily use and is packaged in a regular size bottle with a shelf life of 12 months after opening.