Open references

Clinical standards

UK-specific clinical references published openly by our clinical team. Intended to be cited and linked to by patients, GPs and specialist providers. Reviewed annually and whenever the underlying guidance changes.

Standard

The UK Pre-Hair-Transplant Bloodwork Standard

A canonical UK reference for the blood tests UK hair restoration surgeons require before surgery. Markers, clinical rationale, timing window, out-of-range guidance, and a surgeon-facing letter.

Intended audience: Patients, GPs, hair restoration surgeons, trichologists. Last reviewed 30 May 2026.

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Suggest a standard

If you are a UK clinician and there is a clinical area you would like to see covered, or you would like to contribute to an existing one, write to us.

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