A bottle labeled "esse probiotic serum" stands near laboratory glassware, including a beaker and a measuring cylinder. In the background, a green petri dish with a circular, flower-like culture is visible. The scene has a clean and clinical look.

Serious About Serums

Facial serums come in many forms and choosing which one is best for your skin can often feel daunting. You’ll hear bloggers and influencers wax lyrical about their latest serum…