One Day Tests is a legitimate UK-based provider of postal health testing kits covering STIs, hormones, vitamins and more. Results are typically returned within one working day of the lab receiving your sample, which is a genuine differentiator. The service is UKAS-accredited and uses CQC-registered labs, though consumers should be aware it is not a substitute for NHS clinical diagnosis.
One Day Tests is a UK-based postal health testing company incorporated in 2020 and operating from England. It offers a broad catalogue of at-home test kits — including STI panels, hormone profiles, vitamin deficiency checks and thyroid tests — with the headline promise of results within one working day of laboratory receipt. The company uses a UKAS ISO 15189-accredited and CQC-registered laboratory partner, which adds meaningful scientific credibility to its offering.
The key consumer protection consideration is that One Day Tests is a testing-kit retailer rather than a regulated clinical service. While the lab processing samples holds appropriate accreditation, the brand itself is not a CQC-registered healthcare provider, meaning there is no mandated clinical oversight or automatic GP referral pathway built into every test. Some test types do include nurse or clinician review, but this varies by product. Consumers with concerning results should always follow up with their GP or an NHS service for clinical interpretation and treatment.
For UK consumers, One Day Tests represents a convenient, credible option for private home testing — particularly useful for rapid STI screening or hormone checks where NHS waiting times are a barrier. However, NHS testing remains free and clinically supported for eligible individuals, so weigh the cost (kits range from roughly £20 to over £150) against NHS availability. Always read what is and is not included in the post-result support before purchasing, as the level of clinical follow-up differs between test types.