# Wednesday Labs > Private research-use catalog ## Posts - [ADA 2026: The Multi-Agonist and Oral Incretin Readouts, Summarized](https://wednesdaylabs.co/blog/ada-2026-multi-agonist-readouts-summarized/): ADA 2026 delivered phase 3 data on a triple GLP-1/GIP/glucagon agonist, a dual agonist, CagriSema and two oral agents. Here is the map. - [BPC-157 Research Overview: What Preclinical Studies Actually Show](https://wednesdaylabs.co/blog/bpc-157-research-overview/): Three decades of rodent studies, a handful of mechanistic papers, and no published human trial. A plain-language map of the BPC-157 literature. - [What Is a Peptide? Structure, Function and Why It Matters in Research](https://wednesdaylabs.co/blog/what-is-a-peptide/): A plain-language primer on what peptides are, how they are built from amino acids, and why short chains of residues occupy so much of modern research. - [Triple GLP-1/GIP/Glucagon Agonists: Where the Research Stands](https://wednesdaylabs.co/blog/triple-agonist-research-overview/): How a single peptide came to activate three proglucagon-family receptors, what phase 2 trials of the class reported, and what is still unknown. - [How to Read a Certificate of Analysis (COA)](https://wednesdaylabs.co/blog/how-to-read-a-certificate-of-analysis/): Identity, purity, quantity and the lab that signed it: the four sections of a COA that matter, and the red flags that mean it certifies nothing. - [Sermorelin: A Review of GHRH-Analogue Research](https://wednesdaylabs.co/blog/sermorelin-research-overview/): Sermorelin is the first 29 amino acids of human GHRH. What the pediatric, aging and mechanistic literature actually recorded, and where the evidence stops. - [Semax: A Review of Neuropeptide Research](https://wednesdaylabs.co/blog/semax-research-overview/): What the literature shows about Semax, a synthetic ACTH(4-10) analogue studied for neurotrophin regulation and used clinically in Russia. - [What Is NAD+? Cellular Energy, Sirtuins and the Research Record](https://wednesdaylabs.co/blog/what-is-nad/): A plain-language guide to NAD+: what it does in redox metabolism and signaling, why it declines with age, and what human and animal studies have shown. - [Understanding Peptide Purity: What 99% Does and Doesn't Tell You](https://wednesdaylabs.co/blog/understanding-peptide-purity/): A purity figure is a chromatographic ratio, not a statement about everything in the vial. What the number measures, what it leaves out and how to read it. - [GHK-Cu: What the Copper-Peptide Literature Shows](https://wednesdaylabs.co/blog/ghk-cu-research-overview/): A plasma tripeptide found in 1973, a copper complex, and fifty years of fibroblast and wound studies. What the GHK-Cu record supports and what it leaves open. - [What Are GLP-1 Peptides? Incretin Biology for Researchers](https://wednesdaylabs.co/blog/what-are-glp-1-peptides/): The biology behind GLP-1: where it comes from, what it does, why the native hormone lasts two minutes, and how synthetic analogues were built to last a week. - [Tesamorelin: What the Clinical and Preclinical Literature Shows](https://wednesdaylabs.co/blog/tesamorelin-research-overview/): Tesamorelin is a stabilized GHRH analogue and the active ingredient of Egrifta. Its phase 3 trials, liver and cognition studies, and evidence limits. - [What Is HPLC and How Does It Measure Peptide Purity?](https://wednesdaylabs.co/blog/what-is-hplc/): HPLC separates a peptide from its impurities on a column and reports the result as a chromatogram. Here is how it works and how to read one on a COA. - [MOTS-c: A Mitochondrial-Derived Peptide in Metabolic Research](https://wednesdaylabs.co/blog/mots-c-research-overview/): What the literature shows about MOTS-c, a 16-amino-acid peptide encoded in mitochondrial DNA: AMPK signaling, mouse exercise studies and one small human trial. - [BPC-157 vs. TB-500: Different Mechanisms, Overlapping Research Interest](https://wednesdaylabs.co/blog/bpc-157-vs-tb-500/): One is a gastric peptide acting through VEGFR2 and nitric oxide; the other is a fragment of an actin-binding protein. A side-by-side reading of the evidence. - [Research Peptides Explained: What "Research Use Only" Actually Means](https://wednesdaylabs.co/blog/research-peptides-explained/): Where the RUO label comes from, how FDA views unapproved drugs and intended use, and why research peptide suppliers ask for researcher affirmations. - [CJC-1295 and Ipamorelin: Why Researchers Study Them Together](https://wednesdaylabs.co/blog/cjc-1295-ipamorelin-research/): A GHRH analog and a ghrelin-receptor agonist act on two different pituitary receptors. The literature explains why that pairing draws research interest. - [NMN vs. NR vs. NAD+: Precursors and the Direct Molecule Compared](https://wednesdaylabs.co/blog/nmn-vs-nr-vs-nad/): How nicotinamide mononucleotide, nicotinamide riboside and NAD+ itself differ in structure, uptake, human evidence and regulatory status. - [Selank vs. Semax: Two Russian Neuropeptides Compared](https://wednesdaylabs.co/blog/selank-vs-semax/): Selank and Semax share a laboratory of origin and a stabilizing tail but not a mechanism. A side-by-side reading of the research on each. - [Why Third-Party Lab Testing Matters for Research Peptides](https://wednesdaylabs.co/blog/third-party-lab-testing/): A supplier grading its own product is a conflict of interest, not a quality system. What independent testing adds, what it cannot fix, how to read it. - [TB-500 and Thymosin Beta-4: Actin, Cell Migration and Repair Models](https://wednesdaylabs.co/blog/tb-500-thymosin-beta-4-research/): Thymosin beta-4 is the cell’s main actin-sequestering protein. TB-500 is a short synthetic piece of it. The difference shapes how to read the literature. - [Peptide Storage and Handling: Lyophilized vs. Reconstituted](https://wednesdaylabs.co/blog/peptide-storage-and-handling/): Why lyophilized and reconstituted peptides age differently, and the storage variables that decide shelf life: temperature, light, moisture and freeze-thaw. - [GLP-1 vs. GIP vs. Glucagon Receptors: Why Multi-Agonism Emerged](https://wednesdaylabs.co/blog/glp-1-vs-gip-vs-glucagon/): Three related receptors, three different jobs. How the biology of GLP-1, GIP and glucagon receptors led from selective agonists to dual and triple agonists. - [Ipamorelin: A Review of Selective GH-Secretagogue Research](https://wednesdaylabs.co/blog/ipamorelin-research-overview/): Ipamorelin was designed to release GH without the cortisol and prolactin signals of older secretagogues. What the animal and human record shows. - [Mass Spectrometry: How a Peptide's Identity Is Confirmed](https://wednesdaylabs.co/blog/mass-spectrometry-peptide-identity/): Purity tells you how much of a sample is one thing. Mass spectrometry tells you what that thing is. Here is how the identity check works. - [Mitochondrial-Derived Peptides: MOTS-c, Humanin and SHLPs](https://wednesdaylabs.co/blog/mitochondrial-peptides-overview/): An overview of the peptides encoded in mitochondrial DNA, humanin, the SHLP family and MOTS-c, and what two decades of research have shown about them. - [BPC-157 and the Nitric Oxide System](https://wednesdaylabs.co/blog/bpc-157-and-nitric-oxide/): The most persistent theme in BPC-157 research is its interaction with nitric oxide. What the rat and cell studies show, and what remains inference. - [Reconstitution Math: BAC Water Ratios Without the Guesswork](https://wednesdaylabs.co/blog/reconstitution-math/): The concentration arithmetic behind bacteriostatic-water ratios, worked through so the numbers on a vial label and a COA line up without guesswork. - [Semaglutide vs. Tirzepatide: Single vs. Dual Agonism in the Literature](https://wednesdaylabs.co/blog/semaglutide-vs-tirzepatide/): What the SUSTAIN, STEP, SURPASS and SURMOUNT programs show about a GLP-1 agonist and a GLP-1/GIP dual agonist, and what the comparison does and does not settle. - [GH vs. GHRH vs. GHRP: Untangling the Growth-Hormone Axis](https://wednesdaylabs.co/blog/gh-vs-ghrh-vs-ghrp/): Three classes of molecule act at three points in the growth-hormone axis. What each is, which receptor it binds, and why the distinction matters. - [Neuroprotective Peptides: An Overview of the Research Landscape](https://wednesdaylabs.co/blog/neuroprotective-peptides-overview/): A map of the peptide classes studied for neuroprotection, melanocortin fragments, incretins, neurotrophin mimetics, mitochondrial peptides, and how each fared. - [Lyophilization: Why Research Peptides Ship as Freeze-Dried Powder](https://wednesdaylabs.co/blog/what-is-lyophilization/): Freeze-drying removes water by sublimation at low temperature, leaving a porous solid that resists the chemical reactions that degrade peptides in solution. - [Peptide Blends in Research: How Multi-Compound Studies Are Designed](https://wednesdaylabs.co/blog/peptide-blends-in-research/): Two or three peptides in one vial is a convenience for the bench and a problem for inference. How combination studies are built so results can be attributed. - [Net Peptide Content vs. Purity: Two Numbers, Two Different Questions](https://wednesdaylabs.co/blog/net-content-vs-purity/): A vial can be 99% pure and 75% peptide by weight at the same time. Counter-ions, bound water and how amino-acid analysis resolves the difference. - [SS-31 (Elamipretide): Mitochondrial Membrane Research Overview](https://wednesdaylabs.co/blog/ss-31-elamipretide-research/): How the cardiolipin-binding peptide SS-31 went from a Cornell lab to an FDA-approved drug for Barth syndrome, and what the failed trials along the way showed. - [BDNF and Neurotrophic Signaling in Peptide Research](https://wednesdaylabs.co/blog/bdnf-and-peptide-research/): How BDNF and its receptor TrkB regulate neuronal survival and plasticity, why the pathway matters in peptide research, and where measurement goes wrong. - [How Research Peptides Are Made: Solid-Phase Peptide Synthesis Explained](https://wednesdaylabs.co/blog/peptide-synthesis-explained/): How a peptide is built one amino acid at a time on a resin bead, why Merrifield's method won a Nobel Prize, and where impurities enter the process. - [Endotoxin Testing in Peptide Quality Control](https://wednesdaylabs.co/blog/endotoxin-testing-peptides/): Endotoxin is the contaminant that survives sterilization. How LAL and recombinant assays detect it, and what an endotoxin result on a COA means. - [Bacteriostatic Water: What It Is and Why Labs Use It](https://wednesdaylabs.co/blog/bacteriostatic-water-explained/): Bacteriostatic water is sterile water with 0.9% benzyl alcohol. What that preservative does, what it does not do, and how it differs from plain sterile water. - [Epithalon: Telomerase and Longevity Research Reviewed](https://wednesdaylabs.co/blog/epithalon-research-overview/): What the Khavinson literature and one independent 2025 study show about the tetrapeptide Epithalon, telomerase and lifespan, and why the evidence is thin. - [Amino Acids vs. Peptides vs. Proteins: Where the Lines Are Drawn](https://wednesdaylabs.co/blog/amino-acids-vs-peptides-vs-proteins/): Amino acids, peptides and proteins form one continuum of chemistry. This note explains where the working boundaries sit and why they matter in the laboratory. ## Pages - [Partner Code of Conduct](https://wednesdaylabs.co/partner-code-of-conduct/): Effective September 7, 2026. This Code of Conduct forms part of the Wednesday Partner Program agreement between you (“Partner”, “you”) and Wednesday Research LLC (“Wednesday”, “we”). By applying to or participating in the Partner Program you agree to this Code, our Terms of Service, our Privacy Policy and our Research Use Disclaimer. If anything here conflicts with the Terms of Service, this Code controls for Partner Program matters. 1. The one rule that matters most Every Wednesday product is sold strictly for in-vitro laboratory research. None of them is a drug, supplement, cosmetic, food, or medical device, and none is intended ... Read more - [Partner Program](https://wednesdaylabs.co/partner-program/): Partner program Earn 20% + 10% on research peptides you can stand behind. Lifetime recurring revenue on every researcher you refer. $1 minimum payout. Real-time dashboard. Independently tested, COA-backed compounds. Apply in 60 seconds How it works 24-hour approval Monthly payouts $1 minimum Lifetime recurring 20% + 10%First order + lifetime 24 hrApplication review $1Minimum payout 30 daysCookie window MonthlyPayout schedule 100%COA-backed catalog Earnings calculator See what your audience is worth. Drag the sliders. 20% on each new researcher’s first order, 10% on everything they reorder, for as long as they keep ordering. New referrals per month 10 Average order value ... Read more - [Research Library](https://wednesdaylabs.co/blog/) - [Research Use Disclaimer](https://wednesdaylabs.co/disclaimer/): Research Use Disclaimer All products and information on this site are intended exclusively for laboratory research use by qualified purchasers. 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Research use only All products offered on the Site (“Products”) are chemical reference materials ... Read more - [Home](https://wednesdaylabs.co/) - [Certificate of Analysis Library](https://wednesdaylabs.co/coa/): Transparency first Certificate of Analysis Library Every batch is independently tested by Kovera Labs before it ships. Full HPLC and mass spectrometry reports — publicly available, always. 0COAs published –Average purity 100%Batch coverage HPLC + MSTest methods No COAs found HPLC testing High-performance liquid chromatography separates and quantifies each compound to verify identity and purity percentage. Mass spectrometry Mass spec analysis confirms molecular weight and identity, ruling out contamination and verifying compound structure. Kovera Labs All testing is performed by Kovera Labs, an independent analytical laboratory with no financial relationship to Wednesday Research LLC. Every report carries a report number you ... Read more - [Catalog Guide](https://wednesdaylabs.co/catalog-guide/) - [Contact](https://wednesdaylabs.co/contact/) - [About](https://wednesdaylabs.co/about/): We sell research peptides at 99% purity. Wednesday Labs sells research peptides to qualified researchers, scientists, and laboratory professionals. Every peptide we sell tests at 99% purity or higher, confirmed by independent third-party analysis before it ships. Wednesday Research LLC is the entity behind Wednesday Labs, supplying peptides and research chemicals for legitimate scientific investigation. 99% Purity, Documented Every peptide we sell ships with a Certificate of Analysis from an independent, accredited laboratory confirming 99% purity or higher. You can read the COA for any product before you buy it. Research Only We sell peptides strictly for in vitro laboratory research, ... 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