Obagi Daily Hydro-Drops Hydrating Facial Serum is a high-quality skin care product that provides weightless moisture to your skin. This serum utilizes Isoplentix(tm) microfluidic technology to deliver Vitamin B3, Abyssinian Oil, and Hibiscus Oil in their purest forms. The 1 oz size is perfect for daily use, and the hydrating formula helps to nourish and hydrate your skin, leaving it feeling soft and smooth. Whether you have dry, oily, or combination skin, Obagi Daily Hydro-Drops Hydrating Facial Serum is a must-have addition to your skincare routine.