Peptest is a legitimate UK-based medical diagnostics company offering clinically validated home test kits for detecting pepsin, a marker of acid reflux and LPR. The tests are developed in partnership with RD Biomed and backed by peer-reviewed research. It is a niche but credible product with genuine clinical utility, though it is not a substitute for GP diagnosis.
Peptest is a UK-based home diagnostic service operated by RD Biomed Limited, a Hull-registered company founded around 2010. The product centres on a non-invasive saliva test that detects pepsin, an enzyme associated with gastro-oesophageal reflux disease (GORD) and laryngopharyngeal reflux (LPR). The underlying science has been published in peer-reviewed academic journals, lending the product considerably more credibility than many self-test health kits on the market.
The key strength of Peptest is its clinical grounding — it was developed by Professor Nikki Johnston and has been used in NHS and private clinical research settings. However, UK consumers should be aware that a positive pepsin result does not constitute a medical diagnosis, and the company itself advises consulting a doctor with results. The Trustpilot review volume is modest, which limits independent consumer sentiment data, though the reviews that exist are broadly positive.
UK consumers looking for a preliminary indicator of acid reflux or LPR before pursuing a GP referral may find Peptest genuinely useful. At around £25–£40 per test, it is reasonably priced for a specialist diagnostic kit. Always share results with a qualified clinician rather than self-treating, particularly if symptoms are persistent or severe. Overall, this is a legitimate, scientifically grounded product from a real UK company — not a wellness gimmick.