Harpenden supplement brand Fnction raises estimated £900.1m

An estimated £900.1m has been raised by Fnction Ltd in its latest funding round. Based in Harpenden, the company manufactures premium wellness supplements such as its FOCUS and CALM ranges. These products are formulated with neuroscience-informed ingredients to support recovery, resilience, and daily nutrition. The brand targets adults aged 18 and over seeking to enhance their health and performance as part of a balanced lifestyle.

The startup was incorporated in 2024 and previously raised £150k in funding during 2025. This latest capital injection follows documentation filed and shares allotted in August 2026. Financial records for the business are available for the fiscal year ended 30 April 2025.