# Hati Peptides > UK supplier of research-grade peptides. Lyophilised, batch-verified with COA, third-party tested for purity. For in vitro and laboratory research use only. Site: https://hatipeptides.co.uk Contact: hello@hatipeptides.co.uk ## Products - [Retatrutide](https://hatipeptides.co.uk/product/retatrutide): Triple-agonist research peptide (GLP-1/GIP/glucagon). Lyophilised, COA-traceable, ≥98% HPLC purity. - [Tirzepatide](https://hatipeptides.co.uk/product/tirzepatide): Dual GLP-1/GIP agonist research peptide. Batch-verified, lyophilised, third-party tested. - [Semaglutide](https://hatipeptides.co.uk/product/semaglutide): GLP-1 receptor agonist research peptide. ≥98% HPLC purity, COA per batch. - [MOTS-C](https://hatipeptides.co.uk/product/mots-c): 16-aa mitochondrial-derived peptide. AMPK activation, metabolic research, lyophilised. - [Tesamorelin](https://hatipeptides.co.uk/product/tesamorelin): GHRH analogue research peptide. Lyophilised, batch-verified with COA. - [Ipamorelin](https://hatipeptides.co.uk/product/ipamorelin): Selective ghrelin receptor agonist (GHS-R1a). Growth hormone research peptide. - [BPC-157](https://hatipeptides.co.uk/product/bpc-157): 15-aa pentadecapeptide. Tissue repair and regeneration research applications. - [TB-500](https://hatipeptides.co.uk/product/tb-500): Thymosin Beta-4 fragment. Actin-binding, cell migration research peptide. - [GHK-Cu](https://hatipeptides.co.uk/product/ghk-cu): Copper-binding tripeptide. Skin, hair, and wound healing research applications. - [Epitalon](https://hatipeptides.co.uk/product/epitalon): Four-aa pineal peptide. Telomerase and longevity research applications. - [Selank](https://hatipeptides.co.uk/product/selank): Synthetic heptapeptide derived from tuftsin. Anxiolytic and cognitive research. - [Bacteriostatic Water](https://hatipeptides.co.uk/product/bacteriostatic-water): Sterile water with 0.9% benzyl alcohol for peptide reconstitution. Lab-grade. ## Research Articles - [Retatrutide UK: Research Reference 2026](https://hatipeptides.co.uk/research/retatrutide): Research reference for retatrutide (LY3437943), a triple agonist targeting GLP-1, GIP, glucagon receptors. Lab applications, structure, mechanism of action. - [MOTS-C UK: Research Reference 2026](https://hatipeptides.co.uk/research/mots-c): Research reference for MOTS-C (mitochondrial 12S rRNA-c), a mitochondrial-derived peptide involved in metabolic regulation, cellular stress, and mitochondrial-nuclear communication. - [Tesamorelin UK: Research Reference 2026](https://hatipeptides.co.uk/research/tesamorelin): Research reference for tesamorelin, a synthetic growth hormone-releasing hormone (GHRH) analogue used in metabolic and endocrine research. - [Ipamorelin UK: Research Reference 2026](https://hatipeptides.co.uk/research/ipamorelin): Research reference for ipamorelin, a selective GH secretagogue that stimulates GH release via the ghrelin receptor without cortisol or prolactin stimulation. - [BPC-157 UK: Research Reference 2026](https://hatipeptides.co.uk/research/bpc-157): Research reference for BPC-157, a synthetic pentadecapeptide investigated in regenerative, gastrointestinal, and musculoskeletal research. - [TB-500 UK: Research Reference 2026](https://hatipeptides.co.uk/research/tb-500): Research reference for TB-500 (Thymosin Beta-4), a 43-amino-acid peptide involved in actin regulation, wound healing, and cellular migration. - [GHK-Cu UK: Research Reference 2026](https://hatipeptides.co.uk/research/ghk-cu): Research reference for GHK-Cu (glycyl-L-histidyl-L-lysine copper), a copper-binding tripeptide involved in wound healing, collagen synthesis, and tissue regeneration. - [Semaglutide UK: Research Reference 2026](https://hatipeptides.co.uk/research/semaglutide): Research reference for semaglutide, a long-acting GLP-1 receptor agonist used in metabolic and appetite signalling research. - [NAD+ UK: Research Reference 2026](https://hatipeptides.co.uk/research/nad-plus): Research reference for NAD+ (nicotinamide adenine dinucleotide), a coenzyme central to cellular metabolism, redox reactions, and energy production. - [Selank UK: Research Reference 2026](https://hatipeptides.co.uk/research/selank): Research reference for Selank, a synthetic heptapeptide investigated in anxiolytic, neuroimmune, and cognitive research. - [Epithalon UK: Research Reference 2026](https://hatipeptides.co.uk/research/epithalon): Research reference for Epithalon (epithalamin), a synthetic tetrapeptide investigated in telomerase activation, pineal gland, and longevity research. - [Bacteriostatic Water: Research Reconstitution Guide 2026](https://hatipeptides.co.uk/research/bacteriostatic-water): Laboratory guide for bacteriostatic water use in peptide reconstitution. Sterile handling, storage protocols, and best practices for UK research laboratories. - [Retatrutide vs Semaglutide: UK Research Comparison 2026](https://hatipeptides.co.uk/research/retatrutide-vs-semaglutide): Comparative research reference for Retatrutide and Semaglutide. Triple vs GLP-1 agonist mechanisms, receptor pharmacology, metabolic research, and UK sourcing standards. - [BPC-157 vs TB-500: UK Regenerative Research Comparison 2026](https://hatipeptides.co.uk/research/bpc-157-vs-tb-500): Comparative research reference for BPC-157 and TB-500. Pentadecapeptide vs thymosin beta-4 mechanisms, tissue repair applications, and sourcing standards for UK laboratories. - [Beginner's Guide to Research Peptides: 2026 Edition](https://hatipeptides.co.uk/research/beginners-guide-research-peptides-2026): Starter guide for researchers new to peptides: what they are, choosing a first compound, purity standards, reconstitution basics, UK legality, common mistakes. - [Recovery Stack: BPC-157 + TB-500 Research Guide 2026](https://hatipeptides.co.uk/research/recovery-stack): Research guide for the Recovery Stack combining BPC-157 and TB-500. Complementary mechanisms in tissue regeneration, wound healing, and musculoskeletal repair models. - [Metabolic Stack: Retatrutide + MOTS-C Research Guide 2026](https://hatipeptides.co.uk/research/metabolic-stack): Research guide for the Metabolic Stack combining Retatrutide and MOTS-C. Multi-receptor metabolic regulation and mitochondrial signalling for energy homeostasis research. - [Longevity Stack: Epithalon + NAD+ Research Guide 2026](https://hatipeptides.co.uk/research/longevity-stack): Research guide for the Longevity Stack combining Epithalon and NAD+. Telomerase activation and cellular metabolism for ageing and cellular senescence research. - [GLP-1 + Amylin Combination: What the Research Shows](https://hatipeptides.co.uk/research/glp1-amylin-combination): Research review of GLP-1 + amylin combination therapy. CagriSema REDEFINE 1 & 2 trial data, eloralintide Phase 2 results, and dual-pathway UK metabolic research. - [Skin Stack: GHK-Cu + BPC-157 Research Guide 2026](https://hatipeptides.co.uk/research/skin-stack): Research guide for the Skin Stack combining GHK-Cu and BPC-157. Copper peptide and regenerative pentadecapeptide for dermal repair, collagen synthesis, and wound healing research. ## Guides - [Peptide Reconstitution Protocols for Laboratory Use](https://hatipeptides.co.uk/guides/reconstitution): Step-by-step reconstitution protocols for lyophilised peptides using bacteriostatic water. Covers concentration, mixing, and storage for research labs. - [How to Read a Certificate of Analysis (CoA) for Research Peptides](https://hatipeptides.co.uk/guides/coa): Practical guide to interpreting Certificates of Analysis for peptide reference materials. Learn what HPLC, MS, and purity data mean for lab research. - [Peptide Purity Grades Explained for Research Laboratories](https://hatipeptides.co.uk/guides/purity-grades): Understand the differences between 95%, 98%, and 99% purity peptides. When each grade is appropriate for your model, and how to balance cost vs. experiment. - [Peptide Storage and Handling Best Practices for Laboratories](https://hatipeptides.co.uk/guides/storage): How to store lyophilised and reconstituted peptides for maximum stability. Temperature, desiccation, light protection, and handling for research labs. - [Bacteriostatic Water vs. Sterile Water vs. PBS for Peptide Research](https://hatipeptides.co.uk/guides/bac-water): Compare the three most common reconstitution media for research peptides. When to use BAC water, sterile water, or PBS in your laboratory. - [Frequently Asked Questions — Research Peptide Reference Materials](https://hatipeptides.co.uk/guides/faq): General frequently asked questions about research peptides, UK legality, ordering, storage, and compliance. For laboratory and research use only. - [What Are Research Peptides? A UK Laboratory Guide](https://hatipeptides.co.uk/guides/what-are-research-peptides): Comprehensive guide to research peptides for UK laboratories. What they are, how they're synthesised, purity grades, applications, regulatory context. ## Glossary - [Retatrutide](https://hatipeptides.co.uk/glossary/retatrutide): Retatrutide is a 39-amino-acid peptide engineered as a triple agonist at GLP-1, GIP, and glucagon receptors. It is used in metabolic research to study multi-receptor signalling, energy homeostasis,… - [MOTS-C](https://hatipeptides.co.uk/glossary/mots-c): MOTS-C is a 16-amino-acid peptide encoded within the mitochondrial genome. It regulates metabolic homeostasis, cellular stress responses, and mitochondrial-nuclear communication through AMPK… - [Tesamorelin](https://hatipeptides.co.uk/glossary/tesamorelin): Tesamorelin is a synthetic 44-amino-acid peptide analogue of human growth hormone-releasing hormone (GHRH). It stimulates endogenous growth hormone secretion through activation of the GHRH receptor… - [Ipamorelin](https://hatipeptides.co.uk/glossary/ipamorelin): Ipamorelin is a pentapeptide that functions as a selective growth hormone secretagogue. It stimulates growth hormone release through the ghrelin receptor (GHS-R1a) without significant stimulation of… - [Tirzepatide](https://hatipeptides.co.uk/glossary/tirzepatide): Tirzepatide is a 39-amino-acid peptide engineered as a dual agonist at GLP-1 and GIP receptors. It is used in metabolic research to study incretin biology, glucose-dependent insulin secretion, and… - [Semaglutide](https://hatipeptides.co.uk/glossary/semaglutide): Semaglutide is a 31-amino-acid peptide analogue of human glucagon-like peptide-1 (GLP-1) with fatty-acid conjugation for extended half-life. It is used in metabolic research to study GLP-1 receptor… - [BPC-157](https://hatipeptides.co.uk/glossary/bpc-157): BPC-157 is a 15-amino-acid peptide fragment (pentadecapeptide) derived from a protein found in human gastric juice. It is studied in regenerative research for its effects on soft-tissue repair,… - [TB-500](https://hatipeptides.co.uk/glossary/tb-500): TB-500 is a synthetic peptide fragment of thymosin beta-4 (Tβ4), a naturally occurring actin-binding protein. It is studied in regenerative research for its effects on cell migration, cytoskeletal… - [GHK-Cu](https://hatipeptides.co.uk/glossary/ghk-cu): GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring copper-binding tripeptide complex. It is studied in regenerative research for its effects on dermal matrix synthesis, cellular… - [Selank](https://hatipeptides.co.uk/glossary/selank): Selank is a synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) developed at the Institute of Molecular Genetics in Moscow. It is studied in neuroimmune and neuropharmacological research for its… - [Epithalon](https://hatipeptides.co.uk/glossary/epithalon): Epithalon (also known as epitalon) is a synthetic tetrapeptide (Ala-Glu-Asp-Gly) developed from studies of the pineal gland's role in biological ageing. It is studied in longevity research for its… - [NAD+](https://hatipeptides.co.uk/glossary/nad-plus): NAD+ (nicotinamide adenine dinucleotide, oxidised form) is a fundamental biochemical coenzyme found in all living cells. It is essential for cellular energy metabolism, serving as an electron… - [Bacteriostatic Water](https://hatipeptides.co.uk/glossary/bacteriostatic-water): Bacteriostatic water is sterile water for injection containing 0.9% benzyl alcohol as a bacteriostatic preservative. It is the standard diluent for reconstituting lyophilised research peptides in… ## Stacks - [Recovery Stack](https://hatipeptides.co.uk/stacks/recovery): Combine BPC-157 and TB-500 to target complementary phases of the tissue repair cascade — angiogenesis and structural remodelling. - [Metabolic Stack](https://hatipeptides.co.uk/stacks/metabolic): Pair Retatrutide (triple GLP-1/GIP/glucagon agonist) with MOTS-C (mitochondrial-derived peptide) to investigate multi-receptor metabolic signalling and cellular energy regulation. - [Longevity Stack](https://hatipeptides.co.uk/stacks/longevity): Combine Epithalon (Epitalon) with NAD+ to investigate telomere biology, gene expression regulation, and cellular energy metabolism — targeting parallel hallmarks of ageing. - [Skin Stack](https://hatipeptides.co.uk/stacks/skin): Pair GHK-Cu (copper-binding tripeptide) with BPC-157 to investigate extracellular matrix remodelling, angiogenesis, and tissue regeneration pathways. ## Optional - [Sitemap](https://hatipeptides.co.uk/sitemap.xml) - [Full text export for AI ingestion](https://hatipeptides.co.uk/.well-known/llms-full.txt) - [Glossary index](https://hatipeptides.co.uk/glossary) - [Research index](https://hatipeptides.co.uk/research) - [Guides index](https://hatipeptides.co.uk/guides) - [Stacks index](https://hatipeptides.co.uk/stacks)