Understand the source comparison
Research Grade vs Medical Grade vs Consumer Grade
UK buyers frequently conflate three different quality tiers. The distinctions matter: Medical grade (pharmaceutical) USP/EP pharmacopoeial standard, GMP-manufactured Human therapeutic use; prescription-only MHRA-licensed; clinical trials data; prescribing auth
No winner is assigned.
This page preserves a source comparison for education. It does not add a rating, recommendation or clinical judgment.
- UK buyers frequently conflate three different quality tiers. The distinctions matter:
- Medical grade (pharmaceutical)
- USP/EP pharmacopoeial standard, GMP-manufactured
- Human therapeutic use; prescription-only
- MHRA-licensed; clinical trials data; prescribing authority required
- Research grade
- ≥98% HPLC (≥99% preferred); batch-specific COA
- Licensed laboratory & preclinical research
- Research-use classification; supplier responsible for purity documentation
- Consumer / reagent grade
- No published minimum; often 95% or unstated
- General laboratory reagent, method development
- Minimal; no batch-level documentation expected
- Research-grade is the correct tier for UK laboratory research on investigational peptides. It is a higher quality bar than reagent grade (which is fit for teaching or qualitative work) and a lower bar than pharmaceutical grade (which requires an MHRA licence the compound does not hold). Peptides Lab UK supplies exclusively at research grade to the ≥99% HPLC standard.