We bring scientifically-validated, next-generation probiotic solutions, harnessing the power of nature’s beneficial microbes.

Our Scientists

Professor Simon Cutting

Professor Simon Cutting is a bacterial geneticist and Chair of Molecular Microbiology at School of Biological Sciences, Royal Holloway University of London and CEO of SporeGen. One of the world’s leading experts in Bacillus probiotics, Professor Cutting has over 30 years experience.

Dr Hong A. Huynh

Dr Hong A. Huynh obtained her PhD in Immunology from Vietnam where she spent 20 years working with vaccines, before working in the UK as a research scientist. She is responsible for the development of a number of important Bacillus strains that have been commercialised, including HU58.

Dr William Ferreira

Dr William Ferreira is a research scientist at SporeGen with a focus on the gut microbiome and its influence on human disease. He obtained his PhD at Royal Holloway, University of London researching the influence of Bacillus on gastrointestinal disease.

“The Hygiene Hypothesis suggests that our health is influenced by our environment. We have taken this one step further realising that bacterial spores acquired from the environment play a pivotal role in health and well-being. Our effort is now focused on our unique approaches for discovering new and novel spore and demonstrating efficacy through sophisticated screening processes.”

- Professor Simon Cutting

Science Standards

We maintain the highest international standards as defined by regulatory bodies EFSA (European Food and Safety Authority) and FDA (Food and Drug Administration). The strains we work with achieved GRAS status, as well as QPS (Qualified Presumption of Safety).

Research and Development

Every one of our products is the result of extensive strain screening combining lab studies as well as in vivo. Each strain is DNA-verified and underwent thorough research before it was hand-picked for its specific targeted beneficial properties. All products are microbiologist-formulated in London and made in the UK.


The viability of probiotic bacteria is greatly impacted by the way in which it has been cultured which is why we only use bacteria that has been cultivated using a hypoallergenic, vegan, non-GMO growth medium. All bacteria is bio-fermented in pharmaceutical-grade facilities (conducted under cGMP and HACCP guidelines).


All of our products have undergone independent third-party testing to ensure correct dosage (defined as CFU) of probiotic bacteria and stability. Our products adhere to GMP guidelines throughout every step of the manufacturing process including the final product.


Reuse. Refill. Recycle.

Each component of our refill system is designed to protect your Functional Probiotic and be gentler on our Earth. Simply keep your jar from your welcome kit and your refill arrives each month.

Glass Jar

While glass is recycle, the less we produce the lower the impact on environment. Be kind to Mother Earth and keep jar of Functional Probiotic for the monthly refill.

Both jar and lid is fully recycleble.


Sustainably delivers monthly refill through your mailbox.

Made of 100% biodegradable materials.
Cuts carbon emission by 87%.

Only available with Functional Probiotic subscription. We’re working hard to bring refill pouches option for all of our supplements.