## 38TERA

Science-led nutrition that starts with your gut.

38TERA was founded by Dr Will Bulsiewicz, a leading gastroenterologist and microbiome authority, with a clear mission to raise the standard of gut health supplements. After years of clinical practice and research, he set out to create evidence-based formulas that support health where it starts: in the gut.

Each product uses rigorously researched ingredients, excludes unnecessary additives, and is manufactured in accredited facilities with independent testing for quality and consistency. Built on transparency and science, 38TERA delivers clean, purposeful nutrition so you can support your microbiome with confidence every day. As a UK stockist of 38TERA, browse the selection at Healf.

Try our at-home blood test Test where your vitamin D, B12 and magnesium sit, plus 35 more markers.

- At-home blood test
- Results in 72 hours
- Personalised recommendations

Learn more

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What if you could stop guessing?

At-home blood test, 37 biomarkers

Results and recommendations in 72 hours

1:1 expert consultation available

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