How To Layer Serums & Moisturizers
When it comes to layering skincare products, order matters. "In general, skincare products are layered from thinnest to thickest with the thinnest products being applied to the skin first. If you think about the intended goals, it makes sense. Serums are intended to deliver active ingredients deep into the skin and the moisturizer forms a seal to make the serums more effective.
To effectively layer your serum and moisturizer, first rub the serum onto your face and neck. Then, wait 30 to 60 seconds before applying your moisturizer on top. "The reason for waiting is that you want the serum to settle in before you apply the moisturizer.
While most serums and moisturizers are used both in the morning and evening, there are some serums or creams that should only be used at night depending on their ingredients. (For example, retinol products should only be used at night, as they can increase your skin's sensitivity to the sun.)
In order to really address a difficult skin care problem, like sun damage or hyperpigmentation or wrinkles, you’ll want to combine your moisturizer with a quality serum.