For EU researchers, two of the most-referenced peptide supplier names are Chempeptides and Pure Lab Peptides. Both position as research-grade, both ship within Europe, both publish purity claims. The differences come out when you compare them across the criteria that actually matter — catalogue breadth, verification depth, shipping protocol, and price positioning. This is the side-by-side.
Catalogue breadth
| Category | Chempeptides | Pure Lab Peptides |
|---|---|---|
| GLP-1 class | Semaglutide, Tirzepatide, Retatrutide | Same three available |
| Tissue repair | BPC-157, TB-500, blend | BPC-157, TB-500, blend |
| GHRP family | Ipamorelin, Hexarelin | Ipamorelin, GHRP-2, GHRP-6 |
| GHRH analogues | CJC-1295 DAC + no-DAC, Sermorelin, Tesamorelin | CJC-1295 variants, Sermorelin |
| Cosmetic / skin | GHK-Cu, Melanotan II | GHK-Cu, Melanotan II, PT-141 |
| Specialty | MOTS-c, 5-Amino-1MQ, Kisspeptin, Thymosin α1 | MOTS-c, Epitalon, Thymosin α1 |
Both catalogues cover the high-volume research compounds. Pure Lab has slightly broader GHRP coverage; Chempeptides has more depth in metabolic and mitochondrial peptides.
Quality verification depth
Chempeptides: HPLC ≥98% per batch with batch-specific CoA, mass spectrometry confirmation, Karl Fischer water content, peptide content quantification, counter-ion identification. CoA accessible on product page.
Pure Lab Peptides: HPLC ≥99% claim. CoA available on request rather than auto-attached to product pages.
Both publish purity claims. The verification documentation depth is where they differ — accessible per-batch CoAs versus request-only.
Shipping and cold-chain
| Aspect | Chempeptides | Pure Lab Peptides |
|---|---|---|
| Dispatch location | EU hub | EU hub |
| Same-day cut-off | Yes | Yes |
| Cold-chain packaging | Insulated + gel packs | Insulated + gel packs |
| EU transit time | 1-3 days | 2-4 days |
| UK transit time | 3-5 days | 4-7 days |
See our cold-chain carrier audit for detailed transit time comparison.
Payment infrastructure
Chempeptides: regulated payment methods (Bunq, iDEAL, SEPA, card-processing). EU-compliant checkout flow.
Pure Lab Peptides: card processing, crypto options. EU-compliant.
Both pass standard payment-processor compliance, which is a baseline trust signal.
Pricing comparison (research-grade reference)
Pricing varies by compound and stock cycles. General positioning:
- Mid-tier compounds (BPC-157, TB-500, ipamorelin): comparable, within 10-15%
- GLP-1 class (semaglutide, tirzepatide): comparable
- Specialty compounds: Chempeptides slightly higher on niche items due to lower volume
Brand positioning
Chempeptides: research catalogue with deep mechanism content. The 40+ research blogs and detailed product descriptions position the brand as an information-first supplier.
Pure Lab Peptides: more transactional positioning. Product pages are shorter, less mechanism content.
Which to choose for what
- Volume orders of high-frequency compounds: both work, price-shop the specific compounds
- Niche research (Kisspeptin, mitochondrial peptides): Chempeptides wider niche coverage
- GHRP variety (GHRP-2/6 specific): Pure Lab broader
- Compound mechanism research before ordering: Chempeptides deeper content library
See the full supplier audit framework and the Chempeptides research catalogue.
For laboratory research use only. Comparison based on publicly available product information at time of writing.