— The research library
Do the work right.
52 references for the research community — 20 compound monographs with mechanism and published research, reconstitution protocols with a live calculator, and how we test every lot. For research use only.
52 results
5-Amino-1MQ
5-Amino-1MQ (5-amino-1-methylquinolinium) is a small-molecule, cell-permeable inhibitor of nicotinamide N-methyltransferase (NNMT) — an enzyme that methylates nicotinamide using…
Read →CompoundAOD-9604
AOD-9604 is a synthetic 16-amino-acid peptide derived from the C-terminal lipolytic fragment of human growth hormone, with an additional tyrosine residue at the N-terminus added for…
Read →CompoundBPC-157 + TB-500 (Wolverine)
BPC-157 is a synthetic pentadecapeptide consisting of fifteen amino acids (Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val) derived from a fragment of body protection…
Read →CompoundEpitalon
Epitalon is a synthetic tetrapeptide composed of L-alanine, L-glutamic acid, L-aspartic acid, and L-glycine. It is among the most-studied "peptide bioregulators" in the Russian…
Read →CompoundGHK-Cu
GHK is a naturally occurring tripeptide with the amino-acid sequence glycyl-L-histidyl-L-lysine. When complexed with copper(II), the resulting GHK-Cu chelate forms a planar…
Read →CompoundGLOW Blend (BPC-157 · GHK-Cu · TB-500)
GLOW combines three peptides that recur in tissue-repair and extracellular-matrix research: BPC-157, a stable gastric pentadecapeptide; GHK-Cu, a copper-binding tripeptide…
Read →CompoundIGF-1 LR3
IGF-1 LR3 (Long R3 IGF-1) is a bioengineered analog of human insulin-like growth factor-1 carrying a 13-amino-acid N-terminal extension and an arginine substitution at position 3.…
Read →CompoundKLOW Blend (BPC-157 · GHK-Cu · TB-500 · KPV)
KLOW combines four peptides recurrent in repair and immune-signaling research: BPC-157, GHK-Cu, TB-500, and KPV. KPV is the C-terminal fragment of α-MSH and is studied for…
Read →CompoundMelanotan II
Melanotan II (MT-II) is a synthetic cyclic lactam heptapeptide derived from α-MSH. The cyclization (between Asp5 and Lys10) plus the substitution of D-Phe at position 7 produced a…
Read →CompoundMOTS-c
MOTS-c (Mitochondrial Open Reading frame of the Twelve S rRNA type-c) is a 16-amino-acid peptide encoded within the mitochondrial DNA 12S rRNA region. It was the first…
Read →CompoundNAD+
Nicotinamide Adenine Dinucleotide (NAD+) is a pyridine nucleotide coenzyme present in every living cell. It is not a peptide and does not fit the strict "research peptide" category…
Read →CompoundPT-141
PT-141 (bremelanotide) is a cyclic heptapeptide analog of α-MSH that acts as a non-selective agonist at melanocortin receptors with preferential activity at MC3R and MC4R. The…
Read →CompoundRetatrutide
Retatrutide (research code LY3437943) is a single-molecule triple agonist that activates the GIP receptor, the GLP-1 receptor, and the glucagon receptor. The triple-incretin…
Read →CompoundSelank
Selank is a synthetic heptapeptide consisting of the human tuftsin tetrapeptide (Thr-Lys-Pro-Arg) extended with the C-terminal tripeptide -Pro-Gly-Pro. The C-terminal extension…
Read →CompoundSemaglutide
Semaglutide is a synthetic analog of human glucagon-like peptide-1 (GLP-1), a 31-amino-acid incretin hormone. Engineering modifications — a C18 fatty-diacid side chain that promotes…
Read →CompoundSemax
Semax is a synthetic heptapeptide composed of an N-terminal ACTH(4-7) tetrapeptide (Met-Glu-His-Phe) extended with the C-terminal tripeptide Pro-Gly-Pro. The Pro-Gly-Pro extension…
Read →CompoundSermorelin
Sermorelin is the synthetic acetate salt of GHRH(1-29), the N-terminal 29 amino acids of human growth-hormone-releasing hormone (somatocrinin). It is the shortest GHRH fragment…
Read →CompoundTesamorelin
Tesamorelin is a synthetic 44-amino-acid analog of human GHRH carrying a trans-3-hexenoic acid moiety at the N-terminus. This modification stabilizes the peptide against dipeptidyl…
Read →CompoundThymosin Alpha-1
Thymosin Alpha-1 (Tα1) is a 28-amino-acid N-acetylated peptide derived from prothymosin alpha (ProTα). Among the family of thymic peptides, Tα1 is the most extensively characterized…
Read →CompoundTirzepatide
Tirzepatide (research code LY3298176) is a synthetic 39-amino-acid peptide engineered to act as a single-molecule dual agonist at the glucose-dependent insulinotropic polypeptide…
Read →Protocol · CalculatorBPC-157 + TB-500 blend reconstitution protocol
Reconstitution of the BPC-157 + TB-500 blended vial. Why the two peptides are co-formulated and what each contributes mechanistically to tissue-repair research.
Read →Protocol · CalculatorBPC-157 reconstitution protocol
Reconstitution and storage for BPC-157 (Body Protection Compound). Particular notes on stability of the peptide at varying pH and the role of acetate counterion.
Read →Protocol · CalculatorCJC-1295 / Ipamorelin reconstitution protocol
Reconstitution for blended CJC-1295 + Ipamorelin vials. Why the combination is shipped together, single-vial handling, and references for the underlying GHRH/GHRP pharmacology.
Read →Protocol · CalculatorEpitalon reconstitution protocol
Reconstitution for epitalon (Ala-Glu-Asp-Gly), the synthetic pineal-derived tetrapeptide studied in aging research.
Read →Protocol · CalculatorGHK-Cu reconstitution protocol
Reconstitution of GHK-Cu copper-tripeptide. Notes on preserving copper coordination, avoiding chelators, and reading the characteristic blue color as a stability indicator.
Read →Protocol · CalculatorGlow blend reconstitution protocol
Reconstitution of the Glow blend (GHK-Cu + BPC-157 + TB-500). The three-peptide combination for skin, hair, and dermal regenerative-research models.
Read →Protocol · CalculatorGlutathione reconstitution protocol
Reconstitution of reduced glutathione (GSH). Notes on the rapid oxidation kinetics of the free thiol and storage practices that preserve the reduced form.
Read →Protocol · CalculatorKlow blend reconstitution protocol
Reconstitution of the Klow blend (Glow + KPV). The four-peptide combination adding anti-inflammatory KPV to the regenerative core.
Read →Protocol · CalculatorKPV reconstitution protocol
Reconstitution of KPV (Lys-Pro-Val), the α-MSH-derived anti-inflammatory tripeptide studied in IBD and dermal research models.
Read →Protocol · CalculatorLY3437943 reconstitution protocol
Reconstitution and storage parameters for LY3437943, the triple GIP/GLP-1/glucagon receptor agonist. Reference values from published Phase 2 handling protocols.
Read →Protocol · CalculatorMOTS-c reconstitution protocol
Reconstitution of MOTS-c, the mitochondrial-derived peptide studied for AMPK activation and metabolic signaling.
Read →Protocol · CalculatorNAD+ reconstitution protocol
Reconstitution of NAD+ (nicotinamide adenine dinucleotide) lyophilized vials. Notes on the cofactor's sensitivity to pH, light, and oxidation.
Read →Protocol · CalculatorSemax reconstitution protocol
Reconstitution of Semax, the ACTH(4-7)-derived nootropic peptide studied predominantly in Russian neuroscience literature.
Read →Protocol · CalculatorTesamorelin reconstitution protocol
Reconstitution and storage parameters for tesamorelin, a stabilized GHRH(1-44) analog. Reference values from published handling literature.
Read →Protocol · CalculatorThymosin Alpha-1 reconstitution protocol
Reconstitution of Thymosin Alpha-1 (Tα1), the 28-residue acetylated peptide studied for immunomodulation and TLR9 activation.
Read →Protocol · CalculatorTirzepatide reconstitution protocol
Step-by-step reconstitution and storage parameters for tirzepatide lyophilized vials. Reference values derived from published handling literature.
Read →GuideAliquoting a compound vial safely
How to split a reconstituted peptide vial into single-use aliquots so you avoid freeze-thaw degradation and contamination.
Read →GuideBacteriostatic water vs. sterile water: which to use
The practical difference between bacteriostatic water (USP, with benzyl alcohol) and sterile water for injection, and why bacteriostatic is the default for multi-dose peptide vials
Read →GuideChoosing the right syringe and needle for research workflows
How to pick between insulin syringes, 1 mL tuberculin syringes, and various needle gauges based on dose volume and reconstitution practice.
Read →GuideCold-chain handling: from delivery to vial
What to do when a peptide shipment arrives — verifying ice-pack temperature, transferring vials to long-term storage, and what counts as a stability-compromising thermal excursion.
Read →GuideHow to read a Certificate of Analysis (COA)
A walkthrough of every section on a research-peptide COA: identity confirmation, HPLC purity trace, mass spec, endotoxin, appearance, and what to look for vs. ignore.
Read →GuideHPLC purity testing explained
What HPLC measures, how the chromatogram is read, and why 99% AUC purity is the floor every Merit lot has to clear before it ships.
Read →GuideLyophilization and compound stability
How freeze-drying turns a fragile peptide solution into a multi-year shelf-stable powder, and why every Merit lot ships lyophilized.
Read →GuideMass spectrometry for compound identity verification
Why mass spec is the partner to HPLC on every COA: it tells you whether the peptide present is actually the one labeled, not just how pure the sample is.
Read →GuideThe case for a 99% purity floor
The peptide research industry standard is ≥95% purity. We chose 99%. Here's the trade-off — and why it's the right one for the work researchers are doing.
Read →GuideThe Certificate of Analysis explained
What a peptide COA is, what tests it contains, who issues it, and how to verify the COA you receive belongs to the lot in front of you.
Read →GuideWhy we publish every COA
Most research-peptide suppliers publish a single headline purity number. Merit publishes the chromatogram. Here's why that matters.
Read →ResearchBPC-157 preclinical evidence: what the literature actually says
An honest summary of the preclinical literature on BPC-157 — what's well-replicated, what's preliminary, and the open questions about translation to other models.
Read →ResearchLY3437943 TRIPLE-1: triple-agonist research signals
The TRIPLE-1 Phase 2 trial of LY3437943 — a triple GIP/GLP-1/glucagon receptor agonist. Study design, key signals, and how a third receptor changes the pharmacology.
Read →ResearchNAD+ and cellular aging: a research summary
Why NAD+ became a focus of cellular aging research, what the human and animal data show, and where the field's current debates sit.
Read →ResearchSURMOUNT-1: what the tirzepatide obesity data showed
A summary of the Phase 3 SURMOUNT-1 obesity trial (NEJM 2022) — design, primary outcomes, dose-response observations, and what the data implies for tirzepatide research.
Read →ResearchSURPASS-2: tirzepatide vs. semaglutide head-to-head
The Phase 3 SURPASS-2 trial directly compared tirzepatide and semaglutide for type-2 diabetes research. What the head-to-head showed about dual vs. single incretin agonism.
Read →Everything here is reference information summarized from published literature, for research use only — not for human or veterinary use, and not medical or dosing advice.