The term “serum” is often misused, so we have outlined key differences between an oil and a serum to clear up any confusion:  -A serum has the ability to deliver BOTH water-soluble and oil-soluble nutrients, while a pure oil can deliver only oil-soluble nutrients — which isn’t a bad thing, it’s just chemistry. -A serum glides on easily, absorbs quickly, and has a more transparent look and feel than an oil. -An oil takes longer to sink into skin due to its heavier consistency.  -Serum and oil are both essential to your skincare routine. A serum can be easily integrated into your ritual because it absorbs quickly, blends well with other products, has a broader range of benefits, and can be specialized to target specific skincare concerns. -A serum infuses skin with water and moisture while an oil prevents water from escaping the skin’s surface.