Explore educational research guides, compound comparisons, and lab verification resources organized by research focus. Browse by category, compare mechanisms, and find research-use resources faster.
Select a topic in Apex Laboratory's research library to filter the full library.
Priority resources and cornerstone articles.
Mazdutide (LY3305677/IBI362) research guide: GLP-1/glucagon dual agonism, GLORY-1 and DREAMS trials, China NMPA approval. Research use only.
Cagrilintide & CagriSema research guide: amylin analog mechanism, REDEFINE Phase 3, amylin + GLP-1 co-administration. Research use only.
Adamax research guide: the adamantane-modified, N-acetyl Semax-derivative nootropic peptide - mechanism, evidence limits, sourcing. Research use only.
A research-grade guide to FOXO4-DRI, the senolytic D-retro-inverso peptide that disrupts the FOXO4-p53 interaction to drive p53 nuclear exclusion and apoptosis selectively in senescent cells in preclinical models.
A research-grade guide to PEG-MGF, the PEGylated C-terminal E-domain peptide of Mechano Growth Factor (the IGF-1Ec splice variant), and the contested preclinical literature behind it.
A research-grade guide to LL-37, the only human cathelicidin antimicrobial peptide, studied in vitro for membrane-permeabilizing antimicrobial action and receptor-mediated immunomodulation.
Side-by-side research comparisons.
Three single-agonist GLP-1 receptor agonists compared at research register: Liraglutide (Victoza, Saxenda), Semaglutide (Ozempic, Wegovy, Rybelsus), and Dulaglutide (Trulicity), across asymmetric Phase 3 evidence bases.
Binary GHRH analog comparison of Tesamorelin (stabilized GHRH(1-44); FDA-approved Egrifta) and Sermorelin (GHRH(1-29)NH2 fragment; previously-approved Geref) — a dual-registrational-pedigree pair.
Receptor-pathway comparison of Ipamorelin (selective GHS-R1a pentapeptide) and CJC-1295 (tetra-substituted GHRH(1-29) analog) covering supra-additive synergy and the canonical combination research preparation.
Mechanism-distinct comparison of BPC-157 (15-residue Sikiric pentadecapeptide) and GHK-Cu (3-residue Pickart copper tripeptide) — protein-derived multi-pathway signaling versus copper-coordinated ECM remodeling.
Binary head-to-head of Retatrutide (triple GIP/GLP-1/glucagon agonist; research-only) and Tirzepatide (dual GIP/GLP-1 agonist; FDA-approved as Mounjaro and Zepbound) — across an approval-status divide.
Side-by-side research comparison of BPC-157 and TB-500 — mechanism scales, structural differences, half-life, and combination research context with verified PubMed citations.
Trust-building resources for handling, testing, and verification.
Master peptide dosing math: how to calculate concentrations in mg/mL and mcg/mL, convert micrograms to insulin syringe units, understand U-100 syringe markings, and avoid the most common measurement...
Learn how to read and evaluate a Certificate of Analysis (COA) for research peptides. Understand HPLC chromatograms, Mass Spectrometry data, purity percentages, red flags, and what separates a...
Complete guide to storing research peptides for maximum stability and shelf life. Covers lyophilized storage at -20°C, reconstituted refrigeration protocols, aliquoting strategies, degradation prevention, and compound-specific storage recommendations.
A complete step-by-step protocol for reconstituting lyophilized peptides with bacteriostatic water. Covers materials needed, concentration calculations, storage guidelines, syringe measurements, and troubleshooting common issues.
61 guides shown
Mazdutide (LY3305677/IBI362) research guide: GLP-1/glucagon dual agonism, GLORY-1 and DREAMS trials, China NMPA approval. Research use only.
Cagrilintide & CagriSema research guide: amylin analog mechanism, REDEFINE Phase 3, amylin + GLP-1 co-administration. Research use only.
Adamax research guide: the adamantane-modified, N-acetyl Semax-derivative nootropic peptide - mechanism, evidence limits, sourcing. Research use only.
A research-grade guide to FOXO4-DRI, the senolytic D-retro-inverso peptide that disrupts the FOXO4-p53 interaction to drive p53 nuclear exclusion and apoptosis selectively in senescent cells in preclinical models.
A research-grade guide to PEG-MGF, the PEGylated C-terminal E-domain peptide of Mechano Growth Factor (the IGF-1Ec splice variant), and the contested preclinical literature behind it.
A research-grade guide to LL-37, the only human cathelicidin antimicrobial peptide, studied in vitro for membrane-permeabilizing antimicrobial action and receptor-mediated immunomodulation.
A research-grade comparison of GHRP-2, GHRP-6, and Hexarelin — three synthetic hexapeptide ghrelin-receptor (GHSR-1a) agonists — across sequence, potency, appetite signaling, cross-axis hormones, and Hexarelin\'s CD36 cardiac mechanism.
A research-grade component-level comparison of three tissue-repair peptide blends — the BPC-157/TB-500 repair core, GLOW with added GHK-Cu, and KLOW with added KPV — synthesized strictly from per-component...
Retatrutide Phase 3 TRIUMPH-1 explained: 2026 topline data (up to ~28% weight loss), trial design, mechanism, and class comparison. Research use only.
Survodutide (BI 456906) research guide: dual GLP-1/glucagon receptor agonism, obesity and MASH research, SYNCHRONIZE Phase 3. Research use only.
A research-grade profile of tesamorelin, the stabilized GHRH(1-44) analog: trans-3-hexenoyl modification, GHRH-receptor mechanism, pharmacokinetics, and how it differs from sermorelin.
A research-grade guide to MOTS-c, the 16-amino-acid mitochondrial-derived peptide from the USC Cohen lab studied for AMPK activation and exercise-mimetic metabolic signaling in preclinical models.
A research-grade overview of IGF-1 LR3: its 83-residue Long-R3 architecture, IGF-1R signaling, the IGFBP-binding design rationale, and how it differs from native IGF-1.
A research-grade profile of triptorelin, the D-Trp6 GnRH superagonist whose continuous receptor occupancy suppresses gonadotropins after an initial flare, with mechanism, depot pharmacokinetics, and HPG-axis applications.
A research-grade overview of next-generation GLP-1 peptides: survodutide, mazdutide, cagrilintide, and CagriSema, their multi-receptor mechanisms, trial data, and mixed global regulatory status.
A research-grade guide to SLU-PP-332, a small-molecule pan-ERR agonist from the Burris laboratory studied as an exercise mimetic for mitochondrial-biogenesis and fatty-acid-oxidation signaling in preclinical models.
A research-grade guide to KPV (Lys-Pro-Val), the C-terminal tripeptide of alpha-MSH studied for NF-kB-modulating anti-inflammatory signaling in intestinal and epithelial preclinical models.
A research-grade guide to 5-Amino-1MQ, the small-molecule NNMT inhibitor studied in preclinical metabolic models for its effect on the NAD+ precursor and methyl-donor pools.
A research-grade guide to SS-31 (elamipretide), the mitochondria-targeted Szeto-Schiller tetrapeptide that binds cardiolipin, studied in preclinical bioenergetics and aging models.
A research-grade profile of liraglutide and dulaglutide: two foundational GLP-1 receptor agonists that solved the same short-half-life problem with fatty-acid acylation versus Fc-fusion.
A research-grade overview of thymosin alpha-1, the 28-amino-acid thymic immunomodulatory peptide: Goldstein-lineage discovery, Toll-like-receptor mechanism, antiviral and sepsis research, and reagent verification.
Sermorelin Research Guide: GHRH 1-29 Mechanism, Geref® FDA History & Research Applications Quick Answer Sermorelin is a synthetic 29-amino-acid peptide, the minimal receptor-active N-terminal fragment (GHRH...
Semaglutide is a 31-residue acylated GLP-1 receptor agonist studied for its effects on glucose regulation, body composition, and cardiovascular outcomes. Its long-chain fatty-acid albumin-binding tether extends...
Three single-agonist GLP-1 receptor agonists compared at research register: Liraglutide (Victoza, Saxenda), Semaglutide (Ozempic, Wegovy, Rybelsus), and Dulaglutide (Trulicity), across asymmetric Phase 3 evidence bases.
Vendor-agnostic researcher's checklist for evaluating peptide suppliers across four functionally distinct vendor categories: purity, COA discipline, sequence identity, manufacturing standards, and red-flag signals.
Research-grade vs pharmaceutical-grade peptides explained: regulatory framework not quality hierarchy, cGMP vs ISO 17025, same-molecule worked examples, and verification overlap.
Why >=99% peptide purity matters: historical evolution of HPLC + MS standards, the impurity-inventory inside the trailing 1%, and why reproducibility breaks below the threshold.
How mass spectrometry confirms peptide identity through ionization, m/z analysis, and tandem MS/MS sequencing -- ESI vs MALDI, analyzer classes, and pairing with HPLC for >=99% verification.
Five-family taxonomic reference to longevity research peptides — Epithalon, Humanin, MOTS-c, NAD+, FOXO4-DRI, SS-31, and the full eight-compound Apex catalog with research-context regulatory framing.
Four-family taxonomic reference to specialty research peptides — eleven Apex catalog compounds spanning HPG-axis, melanocortin, neuropeptide, and investigational mechanism traditions.
Compound guide to NAD+ as a coenzyme and sirtuin-pathway substrate, covering the yeast-aging Guarente lineage, modern SIRT1-7 mechanism, age-related decline, and replenishment-research strategies.
Compound guide to PT-141 (Bremelanotide) as an MC4R-selective melanocortin agonist, covering the Hadley/Dorr Arizona lineage, central pharmacology, and the Vyleesi research-grade distinction.
Binary GHRH analog comparison of Tesamorelin (stabilized GHRH(1-44); FDA-approved Egrifta) and Sermorelin (GHRH(1-29)NH2 fragment; previously-approved Geref) — a dual-registrational-pedigree pair.
Receptor-pathway comparison of Ipamorelin (selective GHS-R1a pentapeptide) and CJC-1295 (tetra-substituted GHRH(1-29) analog) covering supra-additive synergy and the canonical combination research preparation.
Mechanism-distinct comparison of BPC-157 (15-residue Sikiric pentadecapeptide) and GHK-Cu (3-residue Pickart copper tripeptide) — protein-derived multi-pathway signaling versus copper-coordinated ECM remodeling.
Mechanism-family reference to tissue repair research peptides — BPC-157, TB-500, GHK-Cu, KPV, LL-37, Thymosin Alpha-1, ARA-290, and SS-31 — across six families.
Mechanism-family reference to GLP-1 metabolic research peptides — Semaglutide, Tirzepatide, Retatrutide, Liraglutide, Cagrilintide, Mazdutide, AOD9604, and beyond — across six receptor-agonism families.
Compound guide to Tirzepatide as the first dual GIP/GLP-1 receptor agonist, covering modified-GIP backbone pharmacology, biased GLP-1R agonism, and the SURPASS and SURMOUNT trial programs.
Binary head-to-head of Retatrutide (triple GIP/GLP-1/glucagon agonist; research-only) and Tirzepatide (dual GIP/GLP-1 agonist; FDA-approved as Mounjaro and Zepbound) — across an approval-status divide.
Cascade-anchored reference to GH-axis research peptides — Sermorelin, Tesamorelin, CJC-1295, Ipamorelin, and the full fourteen-compound catalog — across five mechanism families with research-context regulatory framing.
A mechanism-organized reference to nootropic and CNS research peptides — Cerebrolysin, Selank, Semax, Dihexa, DSIP, Humanin, PE-22-28, and Pinealon — across seven receptor families.
Cerebrolysin research guide covering the porcine-brain peptide-and-amino-acid mixture's neurotrophic-factor-like mechanism, published clinical trial data, and pharmacokinetic profile from decades of research.
Side-by-side research comparison of BPC-157 and TB-500 — mechanism scales, structural differences, half-life, and combination research context with verified PubMed citations.
Detailed comparison of Sermorelin vs CJC-1295 (Mod GRF 1-29) for GH-axis research. Molecular differences, DPP-4 resistance, half-life profiles, published pharmacokinetic data, combination protocols with Ipamorelin, and Tesamorelin comparison.
Comprehensive dual research guide to Selank (tuftsin analog) and Semax (ACTH 4-10 analog) — two regulatory peptides from Russia's Institute of Molecular Genetics. Mechanisms, BDNF modulation, anxiolytic vs...
Comprehensive research guide to GHK-Cu (copper tripeptide-1). CAS 49557-75-7, MW 403.93 g/mol. Copper-dependent signaling mechanism, collagen/glycosaminoglycan synthesis, MMP regulation, published dermatological and tissue remodeling studies.
Comprehensive research guide to Epithalon (Epitalon), the tetrapeptide telomerase activator from the Khavinson bioregulator peptide program. CAS 307297-39-8, MW 390.35 g/mol. Telomerase mechanism, pineal gland regulation, published longevity...
Comprehensive research guide to Melanotan II (MT-II). CAS 121062-08-6, MW 1024.18 g/mol. Non-selective melanocortin receptor agonist, MC1R/MC3R/MC4R/MC5R pharmacology, melanogenesis mechanism, published studies, comparison to Melanotan I and PT-141.
Comprehensive research guide to AOD9604, the modified human growth hormone fragment 176-191. CAS 221231-10-3, MW 1815.08 g/mol. Lipolytic mechanism without IGF-1 stimulation, published metabolic data, comparison to full-length...
Complete CJC-1295 research guide explaining the critical difference between CJC-1295 with DAC and CJC-1295 without DAC (Mod GRF 1-29). GHRH receptor mechanism, pulsatile vs sustained GH release patterns,...
Comprehensive research guide to Ipamorelin, the selective growth hormone secretagogue. CAS 170851-70-4, MW 711.85 g/mol. GHSR-1a selectivity mechanism, published pharmacology, combination research with CJC-1295, and comparison to GHRP-2...
Comprehensive guide to Retatrutide (LY3437943), the first-in-class GIP/GLP-1/glucagon triple receptor agonist. CAS 2381089-83-2, MW 4471.5 g/mol. Triple agonist mechanism, Phase 2 NEJM data, comparison to Tirzepatide and Semaglutide,...
Comprehensive research guide to TB-500 (Thymosin Beta-4 fragment). CAS 77591-33-4, MW 4963.50 g/mol. Actin-binding mechanism, published studies in tissue remodeling and angiogenesis, storage protocols, and detailed comparison to...
Master peptide dosing math: how to calculate concentrations in mg/mL and mcg/mL, convert micrograms to insulin syringe units, understand U-100 syringe markings, and avoid the most common measurement...
How HPLC (High-Performance Liquid Chromatography) works to verify peptide purity. Covers the science behind column separation, UV detection, chromatogram interpretation, purity calculation, and why dual HPLC + Mass...
Complete guide to bacteriostatic water for peptide research. What it is, how benzyl alcohol preservative works, BAC water vs sterile water vs normal saline, proper storage, multi-use protocols,...
Learn how to read and evaluate a Certificate of Analysis (COA) for research peptides. Understand HPLC chromatograms, Mass Spectrometry data, purity percentages, red flags, and what separates a...
Complete guide to storing research peptides for maximum stability and shelf life. Covers lyophilized storage at -20°C, reconstituted refrigeration protocols, aliquoting strategies, degradation prevention, and compound-specific storage recommendations.
Side-by-side comparison of Semaglutide (GLP-1 agonist) and Tirzepatide (dual GIP/GLP-1 agonist) for researchers. Molecular structures, receptor pharmacology, head-to-head SURPASS-2 trial data, and the evolution toward triple-agonist peptides like...
Comprehensive research guide to BPC-157 (CAS 137525-51-0), the gastric pentadecapeptide with over 100 published preclinical studies. Mechanism of action across four molecular pathways, key published literature, proper handling...
A complete step-by-step protocol for reconstituting lyophilized peptides with bacteriostatic water. Covers materials needed, concentration calculations, storage guidelines, syringe measurements, and troubleshooting common issues.
Review our editorial standards, lab verification process, or browse the research-use product catalog.
Same day shipping
Multiple payment options
Real-time order tracking
We’re here to help
Apex Laboratory is a specialized supplier of high-purity chemical reagents and peptides. All products listed are strictly for in-vitro laboratory research and development use only.
support@apexlaboratory.org
Mon – Fri
09:00 – 17:00 EST
