Mark Menning, PhD is a pharmaceutical scientist and the founder of MARK Los Angeles, a California-based skincare brand pioneering the use of flavonoids and advanced transdermal delivery to address cold sores, acne, and inflammation. With a PhD in Chemical Engineering and a track record that includes formulating FDA-approved antiviral therapies like Truvada and Atripla, Mark brings a rare blend of clinical expertise and entrepreneurial vision to the beauty and wellness space.

His first venture, Nucleo Life Sciences, provided laboratory services focused on translational pharmaceutics and novel delivery systems, supporting clinical-stage programs for small, mid-sized, and large pharmaceutical companies. At the core of the brand is XDF™ (Transdermal Flavosomes), a proprietary system designed to solve the long-standing bioavailability issues of flavonoids by enabling them to penetrate the skin effectively.

This technology drives a growing portfolio of performance-first products, including the Lip Rescue Serum and Lip Health Balm—a new standard in cold sore care—as well as the E.Q. Clear Skin collection, a clinically tested line formulated with flavonoids to calm inflammation and visibly improve blemish-prone skin.

Mark is committed to bridging science and skincare, translating plant compounds into clinically validated actives with real-world efficacy and pharmaceutical-grade precision.