Serums - the hardest working soldiers in skin care

What is serum? Everything to know about face serum

Serums are skin care products that are designed to deliver high concentrations of specific active ingredients to the skin. I refer to them as soldiers because they go in fast and do the job as opposed to a cleanser, which is rinsed off. And as opposed to a moisturizer, which like SPF, is your final step in your skin care process.