Serums are a great addition to any skin care regimen they are commonly used for some of the same purposes as moisturizers, but have an added benefit of providing nutrients to deeper levels of the skin.
There are many different types of serums available. Make sure to use one of his best suited for your specific skin needs. For example there are serums for sensitive skin, anti-aging, skin firming and even ones that can help prevent and treat acne.
Often times these serums are used in combination with other skin care products. A common skin care practices to apply serum after using a toner and before putting on a moisturizer.