This facial serum is designed to add a targeted treatment step to a daily skincare routine. The lightweight format makes it easy to layer with moisturizer and other compatible products while focusing on the skin concerns highlighted in the product name. The size and presentation are stated in the product title so you can quickly identify the version offered. Apply as directed on the packaging and pair it with the rest of your routine according to your skin or hair needs. The serum format is suited to a focused step in a regular beauty routine, and the listing title provides the stated size or SPF information where applicable. The skincare formula is supplied in the size and format stated in the product title.