Alastair Jessel is the Founder & CEO of The Postbiotic Company, the team behind AYA BIOME - a premium postbiotic supplement range built on mechanistic, clinically-backed science rather than probiotic hype.

He is also Director of Battersea Park Clinic, an integrative wellness centre in London, home to one of the country’s largest Energy Enhancement Systems, alongside hyperbaric oxygen therapy, red light therapy, and a full suite of biohacking and recovery modalities. He writes The Postbiotic Dispatch, a Substack exploring the science and misinformation around gut health, longevity, and the supplement industry.