This is a how-to for beginners if you've never used serums before.  Concentrated skincare products called serums are made to get active ingredients deep into the skin. They are typically used prior to moisturising, following cleasning and toning. Serums are an effective supplement to any skincare routine and you may start using serums with confidence and have healthy, glowing skin by following this beginner's approach. 1. Choosing A SerumPick a serum that addresses the issues with your skin: Each type of serum on the market is designed to address a distinct skin issue. Vitamin C serums, Hyaluronic Acid serums, and Retinol serums...