Methodology

How we rank UK longevity clinics

Longevity clinics in the UK span a wide spectrum: from £300 supermarket-pharmacy health assessments to £8,000+ whole-body MRI plus genome-screen packages. PeptideClear ranks within tiers, not across, because at different price points users are buying different products.

Inclusion criteria (mandatory floor)

· CQC registration where the service includes clinical interpretation.
· GMC-registered clinician interpreting results.
· Published, transparent pricing for the entry-tier package.
· Standardised bloods panel including at minimum: full lipid profile, HbA1c, ApoB, full thyroid, vitamin D, B12, ferritin, full blood count, liver and kidney function.

Ranking criteria (weighted)

Bloods panel depth (25%): ApoB and Lp(a) presence, fasting insulin presence, full hormone panel for sex hormones, inflammation markers (hsCRP).
Body composition (15%): DXA scan included or available; bioimpedance is a lower-tier proxy.
Cardiovascular fitness measurement (15%): VO2 max via metabolic cart > submaximal estimate > self-reported.
Imaging scope (15%): CT calcium score, MRI brain, whole-body MRI score increasingly at higher tiers.
Intervention loop (15%): measurement plus structured follow-up over 12 months > one-off screen.
Evidence-base alignment (10%): protocols cite specific RCTs or guidelines, not vague "wellness" framing.
Price transparency (5%): upfront pricing > "get a quote" gating.

Tier separation

We separate three tiers in editorial ranking: entry (£300 to £800, e.g. Bupa, Nuffield Health), comprehensive (£1,500 to £4,500, e.g. Hooke, Reliant), premium (£4,500+, e.g. Echelon, Human Longevity). A first-place ranking in entry-tier is not directly comparable to a first-place ranking in premium; they answer different questions.

What we explicitly do not measure

· Marketing claims about "biological age" without published methodology behind the calculation.
· Anti-ageing therapy regimes (testosterone, growth-hormone-adjacent peptide protocols) that sit outside the longevity-clinic remit.
· Individual customer outcomes (we do not publish user-reported lifespan or healthspan claims).

Refresh cadence

Annual refresh, with mid-cycle update when a clinic materially changes package contents or adds a new tier.

Conflict of interest

No UK longevity clinic currently runs an affiliate programme that PeptideClear participates in. Rankings are unsponsored editorial. If that changes, the funding model page will be updated and disclosure will appear on every ranking.