What are research peptides?

Research peptides are short chains of amino acids used in laboratory and in-vitro studies to investigate cellular signalling, receptor activity and biological pathways. They are supplied strictly for research use, not human or veterinary administration.

How are peptides tested?

Every batch is analysed by independent third-party laboratories using High-Performance Liquid Chromatography (HPLC) and mass spectrometry. Our reference compounds consistently achieve 99%+ purity, with full methodology documented in the batch Certificate of Analysis.

What is a Certificate of Analysis (COA)?

A Certificate of Analysis is a third-party lab report detailing a specific batch's purity percentage, molecular weight, testing methodology and identity confirmation. Regena Peptides supplies a batch-matched COA with every order and archives historical COAs on the /coa page.

Which countries do you ship to?

We ship research peptides from our Marbella laboratory across Spain (Marbella, Málaga, Fuengirola, Benalmádena, the Costa del Sol, Madrid, Barcelona, Valencia), the United Kingdom, the wider European Union and the United States, with tracked cold-chain delivery worldwide.

How do I verify product purity?

Cross-reference the batch number printed on your vial with the Certificate of Analysis included in your order — the COA lists the HPLC purity reading, mass-spec identity confirmation and the independent lab that performed the analysis. Historical batch COAs are publicly archived on our COA page for independent verification.

Retatrutide research peptide reference vial

Certificate of Analysis

Every batch · HPLC verified

4.9/5 · 4,264+ researchers · 38 countries

Scientific Reference Database

Premium Research Peptides | Fast Shipping to Spain, UK, Europe & USA

99%+ HPLC-verified vials, batch-level COA in every box, same-day dispatch from Marbella.

99%+ HPLC purity · COA with every batch
Same-day dispatch · tracked, discreet shipping
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99%+
HPLC purity: 4,264+
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Marbella · Costa del Sol

Laboratory Research Supply in Marbella & the Costa del Sol

The Regena Peptides platform is designed as a research reference system for peptide compounds, their mechanisms, and associated scientific data. Each compound is documented with available batch information, purity testing, and research context.

Compound reference database
Research-grade documentation structure
Science-first organisation of peptides
No clinical claims, purely research classification

Researchers in Marbella can buy peptides in Marbella from our local Costa del Sol reference library — see the dedicated Marbella page for delivery areas and FAQ.

Trusted reference supplier · Verified across review platforms

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4.8 / 5 · verified buyers
Google Reviews
Rated by Marbella clients
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Verified Supplier
Peptides Lookup verified
SSL Secured
256-bit encrypted checkout
HPLC Verified
Batch COA on every vial
EU Sourced
Tested & shipped from EU
Discreet Delivery
Temperature-controlled

We accept · Multiple secure payment methods

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Independent Lab Reports

Recent batch Certificates of Analysis

Every batch is independently tested by Janoshik Analytical (janoshik.com). Each row below is a real, verifiable COA — click Download COA to open the signed PDF/image with the Janoshik verify key printed at the bottom.

Download all COAs →

Batch	Product	Purity	Method	Lab	Date	Report
1102	Tirzepatide 30 mg	99.79%	HPLC + MS	Janoshik Analytical	25 Nov 2025	Download COA →
1024	Retatrutide 30 mg	99.31%	HPLC + MS	Janoshik Analytical	25 Nov 2025	Download COA →
blue	HGH 10 IU (rHGH)	95.54%	HPLC + MS	Janoshik Analytical	22 Dec 2025	Download COA →
LOT#0709	GHK-Cu 100 mg	99.65%	HPLC + MS	Janoshik Analytical	23 Sept 2025	Download COA →
LOT#2708	DSIP 5 mg	99.77%	HPLC + MS	Janoshik Analytical	23 Sept 2025	Download COA →
#0816	TB-500 Fragment 10 mg	99.93%	HPLC + MS	Janoshik Analytical	2 Sept 2025	Download COA →
aura003	Retatrutide 15 mg	99.86%	HPLC + MS	Janoshik Analytical	10 Jul 2025	Download COA →
aura004	HCG 5000 IU	7647 IU	Immunoassay	Janoshik Analytical	28 Jul 2025	Download COA →
50-502	BPC-157 5 mg / TB-500 Blend	BPC-157 6.58 mg · TB-500 7.16 mg	HPLC + MS	Janoshik Analytical	27 Jun 2025	Download COA →
50-502	AOD-9604 5 mg	99.11%	HPLC + MS	Janoshik Analytical	17 Jun 2025	Download COA →

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Reconstitution math, dosing windows, storage tables, GLP-1 deep dives and more — a full month of research reading for the price of a coffee. Pay once, no subscription.

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Compound Library

Featured research compounds

View full database →

Advanced Metabolic Support

Retatrutide

Triple-agonist (GLP-1 / GIP / Glucagon) reference compound studied in advanced metabolic signalling research.

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Metabolic Support

Tirzepatide

Dual-agonist (GLP-1 / GIP) reference compound for comparative incretin pathway research.

Read reference →

Metabolic Support

Semaglutide

GLP-1 receptor reference compound widely studied in incretin-related pathway literature.

Read reference →

Tissue Repair & Recovery

BPC-157

Reference peptide studied in regenerative and tissue biology research models.

Read reference →

Growth Hormone Releaser

Ipamorelin

Selective GH-secretagogue reference compound for endocrine signalling research.

Read reference →

Growth Hormone Releaser

CJC-1295 NO DAC

GHRH-analog reference for hypothalamic–pituitary axis research models.

Read reference →

All compounds listed are intended strictly for laboratory research purposes — no medical claims, no therapeutic guarantees.

📘 Educational & Research Focus

Where peptides are studied in the lab

Peptides are widely studied in biological and laboratory research for their role in cellular communication and physiological processes. Our content focuses on education around peptide science and related biological systems.

Metabolic signalling

Incretin-related pathways such as GLP-1 research models.

Tissue regeneration

Cellular repair and recovery study models.

Exercise physiology

Muscle recovery and adaptation research.

Cellular signalling

Molecular biology and communication research.

Endocrine systems

Hormonal signalling research, educational context only.

Ageing biology

Cellular function and longevity studies.

Marbella Costa del Sol coastline at dusk

🌍 Global research support

Researchers worldwide — UK, Europe, USA, Asia, MENA, LatAm & Oceania

Based in Marbella, supporting researchers and longevity practitioners in 100+ cities across six continents — from London, Berlin and New York to Dubai, Singapore, Tokyo, Sydney and São Paulo. Tap your region for local reference and contact options.

Costa del Sol & Spain

Marbella · Málaga · Madrid · Barcelona

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United Kingdom & Ireland

London · Manchester · Edinburgh · Dublin

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Europe

Berlin · Paris · Amsterdam · Milan · Zurich

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United States

Los Angeles · Miami · New York · Las Vegas

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