Educational content only. Not medical advice. Consult a qualified clinician before starting any compound.
Peptide HandbookIndependently researched · UK

The UK's trusted guide to peptides, performance, and longevity.

Clear, science-backed insights to help you understand what works — and what doesn't. No hype. No shortcuts. Just evidence.

12 peptides reviewed229+ studies citedUpdated weekly
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Start with what you're trying to change.

Every peptide on the handbook is graded by the strength of the evidence behind it — not how loud the marketing is.

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The assessment tool

Find the right peptide for your goals.

A five-question, evidence-graded assessment. We surface 2–3 compounds matched to your goal, experience, and risk tolerance — with the studies behind each recommendation.

Based on publicly available research
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Step 1 of 5 · Goal

What outcome are you most focused on?

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Science-backed insights

Every claim is tied to a primary source. Confidence levels are graded against study design, sample size, and replication — not vibes.

Independent analysis

No products sold. No affiliate links. No commercial relationships with peptide vendors or clinics. Funding sources disclosed in full.

No hype, no shortcuts

UK legal status displayed on every page. Limitations called out plainly. We update entries when the evidence does — and timestamp every change.