Selph Voucher Codes Black Friday 2026 - 20% OFF

Selph is a health and wellbeing brand in the UK that concentrates on at-home health testing. It was set up in 2020 with the aim of helping people keep track of and manage their own health through personalised diagnostics. Tests of this kind usually involve collecting a sample yourself and sending it off to a laboratory, which analyses it and returns the findings.

The range takes in fertility, hormone, vitamin, diabetes and cholesterol testing, alongside thyroid, STI, food sensitivity, sleep health, stress, heart health, menopause and testosterone tests. Each one is put together so a customer can build a fuller picture of their health status, and experienced medical professionals oversee the analysis of the results. Findings arrive as detailed reports in an online dashboard, which Selph intends as a basis for informed choices about health.

Despatch is quick, since orders placed before 2pm from Monday to Friday go out the same day, and at-home tests arrive with complimentary next-working day delivery at no additional charge, whether metabolic, stool or blood. Samples travel back free in a prepaid Royal Mail Tracked 24 envelope, though unused kits cannot be returned for a refund once 14 days from purchase have passed. Where a sample cannot be analysed, a replacement kit is sent free of charge. Group discounts are offered to students, teachers, NHS staff and the Armed Forces and Veterans, checked through services such as Student Beans, Discounts for Teachers and the Defence Discount Service. Virtual gift cards, valid for 18 months, are sent by email and can be put towards products.

Codes go into the voucher code box at the Selph checkout; deals need no code.

Over the past year, 10 Selph codes were collected, about 1 a month. The busiest month was November 2026, with 2 codes. The most popular discount was 35% off, offered in May 2026.