Research Guides
Research peptide guides
Clear, science-led explanations written for researchers. Every guide is framed for in-vitro laboratory research use only.
Research peptides, explained: what they are and how US labs use them
What peptides are, how they differ from proteins, why the lab studies them, how a Certificate of Analysis verifies purity, and how research peptides reach US laboratories.
8 min readBPC-157: what the pentadecapeptide is and what studies examine
BPC-157, the fifteen-amino-acid pentadecapeptide: what it is, the pathways researchers study, where it shows up across multi-compound research sets, and how our US vials ship.
7 min readCJC-1295: the GHRH (1-29) analog and what the research covers
CJC-1295 (No DAC) is a synthetic GHRH (1-29) analog studied for growth-hormone-axis receptor signaling, and it often shows up paired with ipamorelin at the bench.
7 min readWhat is Tesamorelin, and what does the research examine?
A stability-enhanced GHRH (1-44) analog studied for hypothalamic-pituitary signaling and growth-hormone regulation, supplied to US laboratories pre-mixed with a batch Certificate of Analysis.
7 min readIpamorelin: what it is and what the literature examines
A selective pentapeptide growth-hormone secretagogue (GHSR-1a agonist), frequently run alongside GHRH analogs at the bench, supplied to US laboratories pre-mixed with a batch Certificate of Analysis.
7 min readTB-500: the thymosin beta-4 fragment and what the research covers
A synthetic thymosin beta-4 fragment studied for actin binding, cell migration and cytoskeletal organization, explained for US researchers with its supply, certificate and shipping.
9 min readWhat GHK-Cu peptide is, and what the research examines
GHK-Cu, the copper peptide (glycyl-L-histidyl-L-lysine + Cu²⁺): where it's studied in skin, collagen and extracellular-matrix research, what the literature actually shows, and how a US lab buys it.
10 min readMOTS-c peptide: what it is and why its mitochondrial origin matters
MOTS-c is encoded by mitochondrial DNA, not nuclear DNA, a mitochondrial-derived peptide. Here is what that unusual origin means for metabolic and mitochondrial-signaling research, and how our US vials ship.
7 min readKPV peptide: the three-residue α-MSH fragment, explained
KPV is the three-residue tail of α-MSH (11-13). Here is what that lysine-proline-valine fragment is, why labs reach for it instead of the full hormone, what studies examine, and how our US vials ship.
7 min readPT-141: the MC4R-selective melanocortin agonist
PT-141 (bremelanotide) is a cyclic melanocortin agonist built from Melanotan II by a single C-terminal edit, studied as an MC3R/MC4R-selective probe for centrally expressed receptor signaling.
7 min readMelanotan II (MT-II): the melanocortin reference agonist
Melanotan II (MT-II) is a stabilized cyclic α-MSH analog used as the broad-spectrum, non-selective reference agonist in melanocortin-receptor research, and the baseline that selective analogs like PT-141 are measured against.
8 min readWhat is retatrutide (reta peptide)?
Retatrutide, often called "reta peptide", is an investigational triple GLP-1/GIP/glucagon receptor agonist. Here is a plain, US-framed overview of what it is, how it compares to tirzepatide, and what the research has and has not shown.
9 min readIs NAD+ a peptide, or a coenzyme?
NAD+ is a core redox coenzyme, not a peptide at all. What it is, the enzymes and pathways US researchers study it in, and how the kit ships in the United States.
9 min readWhat is the Glow Stack?
One research vial pairing BPC-157, TB-500 and GHK-Cu (70mg total), explained for US laboratories: composition, research rationale, certificate, and supply.
7 min readWhat is the Wolverine Stack?
A dual-peptide research set — BPC-157 (10mg) and TB-500 (10mg) in one pre-mixed vial — explained for US laboratories: composition, research rationale, certificate, and supply.
7 min readWhat is KLOW peptide?
A four-peptide research blend — GHK-Cu, KPV, BPC-157 and TB-500, 80mg in one pre-mixed vial — explained for US laboratories: composition, research rationale, certificate and supply.
8 min readThe Hulk Stack: a two-peptide GH-axis research set
CJC-1295 with DAC and Ipamorelin as a research pair: what the DAC modification changes, why two different receptors are worth studying side by side, and how the set ships in the US.
7 min readCJC-1295 and Ipamorelin: why researchers pair them
How a GHRH analog (CJC-1295) and a selective growth-hormone secretagogue (Ipamorelin) end up paired so often in growth-hormone-axis research, what the pairing is meant to show, and its limits.
7 min readBPC-157 vs TB-500: how the two research peptides compare
How BPC-157 and TB-500 line up as research compounds: their origins, the mechanisms each is studied for, why they so often appear together, and how each is supplied to US laboratories.
7 min readPre-mixed peptides vs lyophilized powder, and why it matters
Almost every research peptide on the market ships as lyophilized powder that has to be reconstituted before use. Pre-mixed vials arrive already in solution. Here is what actually changes, in both directions.
8 min readStoring research peptides so they reach the assay intact
Lyophilized versus in-solution stability, why our pre-mixed US vials are refrigerated instead of frozen, and the bench handling that keeps research peptides intact.
7 min readHow to reconstitute peptides
Reconstituting a peptide means turning freeze-dried powder into a measurable solution. Here is the step-by-step procedure, the water to use, the mistakes to avoid, and when you can skip it.
7 min readBacteriostatic water (bac water) for peptides: solution stability
What bac water is, when you actually need it (not for pre-mixed vials), why simple aqueous solutions favor degradation, and how pH and buffers such as Tris affect peptide and cofactor stability.
7 min readInside the reusable pen: how each click meters a volume
A straightforward look at the reusable pen as a precise volumetric dispensing device: the click ratchet, the threaded rod, and the 0.01 mL-per-click mechanics.
6 min readWhat a Certificate of Analysis actually tells you
What a COA is, what HPLC and mass spectrometry each confirm, how to read one when you are sizing up a supplier, and why every US batch we ship carries its own certificate.
6 min read