The reference library
Source-cited, neutral write-ups on the compounds in our catalog — reconstitution technique, the published literature, and how to verify quality. Written for anyone doing serious research, from institutional labs to independent investigators.
For research & educational purposes only
Everything here is provided to help researchers understand and correctly handle reference materials in a laboratory / in-vitro setting. Nothing here is medical advice or a usage recommendation, and none of these materials are for human or animal consumption. These statements have not been evaluated by the FDA.
How to Reconstitute Research Peptides: A Laboratory Guide
A step-by-step reference for reconstituting lyophilized peptides with bacteriostatic water for laboratory research — the concentration math, a worked example, and a full reconstitution table for every compound.
= mg/mL
Compound research overviews
59 articles5-Amino-1MQ vs MOTS-c: Two Routes Into Metabolic Research
One is a small-molecule enzyme inhibitor, the other a mitochondrial-derived peptide. They are not the same class of compound at all.
Do Research Peptides Survive Shipping Without Ice?
Lyophilized peptides are shipped at ambient temperature by design. What actually degrades them, and why transit is not the risk most people assume.
Epithalon vs NAD+: Very Different Evidence Behind a Shared Label
Both are marketed under the anti-ageing heading. One is a coenzyme central to cell metabolism with a broad literature; the other is a short peptide with a narrow and largely regional one.
IGF-1 LR3 vs Native IGF-1: What the LR3 Modification Changes
LR3 is not a strength or a grade. It is a structural modification that changes how the molecule interacts with its binding proteins.
PT-141 vs Melanotan II: A Derivative and Its Parent Compound
PT-141 is derived from Melanotan II. What changed between them is receptor selectivity, and that is the whole distinction.
Sermorelin vs Tesamorelin vs CJC-1295: Three GHRH Analogs Compared
All three act at the same receptor. They differ in fragment length, stability and how much published human data stands behind each.
The Powder in My Vial Shifted or Looks Missing - Is That a Problem?
A lyophilized cake weighs very little and moves in transit. Why a vial can look nearly empty and still contain exactly what the label says.
What Is Bacteriostatic Water, and Why Benzyl Alcohol?
The standard diluent for peptide reconstitution, what the 0.9% benzyl alcohol is doing, and why sterile and distilled water are not substitutes.
Why Do Peptides Ship as a Powder Instead of Pre-Mixed?
Freeze-drying is not a packaging convenience. Removing water is what makes a peptide stable enough to ship and store at all.
Why Is My Reconstituted Peptide Solution Cloudy?
Cloudiness after reconstitution has four common causes, and only one of them means the material is compromised. How to tell them apart.
Adamax vs Semax vs Selank: Three Neurotropic Peptides Compared
Semax and Selank are Russian-developed heptapeptides with distinct research lineages. Adamax is a different molecule again. Mechanism and evidence compared.
BPC-157 vs TB-500: Two Repair Peptides, Two Different Mechanisms
Both appear in tissue-repair research, but one is a gastric-derived pentadecapeptide and the other a thymosin beta-4 fragment. Mechanism, evidence and handling compared.
Can Two Peptides Be Reconstituted in the Same Vial?
A common laboratory question with a real answer: stability, pH, concentration accuracy and why pre-made blends exist.
GHK-Cu vs AHK-Cu: Two Copper Tripeptides, Very Different Evidence
Both are copper-carrying tripeptides with a one-amino-acid difference. The published evidence behind them is not remotely equivalent.
GLOW vs KLOW: What the Extra Letter Changes
Two research blends built on the same core. KLOW adds a fourth component, which changes what the blend is used to study.
KPV vs BPC-157: Inflammatory Signalling vs Tissue Repair
Both appear in gastrointestinal research, which is why they get compared. The pathways each is studied for are different.
Melanotan I vs Melanotan II: Receptor Selectivity Is the Difference
Melanotan I is selective for one melanocortin receptor. Melanotan II is not - and that non-selectivity is the reason the two are studied differently.
MOTS-c vs SS-31: Two Different Approaches to Mitochondrial Research
Both are studied in mitochondrial biology, but one is a signalling peptide encoded by mitochondrial DNA and the other targets the inner mitochondrial membrane directly.
Semaglutide vs Tirzepatide vs Retatrutide: Receptor Targets Compared
Single, dual and triple receptor agonists differ by which incretin receptors they activate. A research comparison of mechanism, study stage and laboratory handling.
Tesamorelin vs CJC-1295 vs Ipamorelin: GHRH Analogs and Secretagogues
Two of these are GHRH analogs and one is a ghrelin-receptor secretagogue. Which receptor each engages explains why they are studied together rather than as alternatives.
How to Choose a Research Peptide Supplier: a Verification Checklist
How qualified researchers evaluate a peptide supplier — the role of independent third-party testing, what a trustworthy vendor documents, the red flags to avoid, and a checklist to apply before ordering reference materials.
How to Read a Peptide Certificate of Analysis (COA)
A plain-language guide to reading a peptide COA — what HPLC purity and mass-spec identity actually mean, how net peptide content differs from purity, and the red flags that separate a real certificate from decoration.
Storing & Handling Research Peptides: Temperature, Freeze-Thaw & Shelf Life
A practical laboratory reference for storing peptides — lyophilized vs. reconstituted, the right temperatures, why freeze-thaw cycles matter, and how to protect stability and shelf life.
GLP-3 (RT): What It Is and What It Does
A triple-hormone metabolism compound in human trials — studied for appetite, blood sugar, and body weight.
Tirzepatide: What It Is and What It Does
Mimics two gut 'fullness' hormones at once — a headline compound in metabolism and blood-sugar research.
Adamax: What It Is and What It Does
A brain-science peptide studied for protecting nerve cells and the tau protein.
BPC-157: What It Is and What It Does
A repair signal copied from a stomach protein — studied for healing tendons, muscle, and the gut.
GHK-Cu: What It Is and What It Does
A natural copper peptide that drops with age — a mainstay of skin, collagen, and wound-healing research.
Tesamorelin: What It Is and What It Does
Tells the body to release its own growth hormone — studied for metabolism and body fat.
GLOW Blend: What It Is and What It Does
A three-peptide skin-and-repair blend (GHK-Cu + BPC-157 + TB-500).
KLOW Blend: What It Is and What It Does
A four-peptide repair-and-inflammation blend (BPC-157 + GHK-Cu + TB-500 + KPV).
CJC-1295 + Ipamorelin: What It Is and What It Does
A two-in-one blend that presses two different growth-hormone 'go' buttons at once.
KPV: What It Is and What It Does
A tiny three-amino-acid peptide whose specialty is calming inflammation, studied in gut and skin models.
TB-500: What It Is and What It Does
The active piece of a natural repair protein — studied for wound healing and recovery.
MOTS-c: What It Is and What It Does
A rare peptide made inside mitochondria — studied for how cells burn energy and handle stress.
NAD+: What It Is and What It Does
A helper molecule every cell uses to make energy — central to aging and metabolism research.
B12: What It Is and What It Does
The methyl-donor vitamin behind nerve myelin and red blood cells — a mainstay of deficiency and nerve-function research.
Melanotan II: What It Is and What It Does
A broader-acting pigment-hormone mimic, studied across the melanocortin signaling system.
Melanotan I: What It Is and What It Does
Mimics the hormone that tells skin to make pigment — studied for tanning and UV protection.
IGF-1 LR3: What It Is and What It Does
A longer-lasting 'grow and multiply' signal — a common tool in cell-culture research.
Kisspeptin-10: What It Is and What It Does
The 'start button' for reproductive hormones — studied in fertility and puberty research.
Semax: What It Is and What It Does
A Russian-developed brain peptide based on a fragment of the hormone ACTH — studied for neuroprotection and cognition.
Selank: What It Is and What It Does
A Russian-developed peptide based on the natural immune fragment tuftsin — studied for anxiety-related behavior and cognition.
AHK-Cu: What It Is and What It Does
A copper-peptide cousin of GHK-Cu, studied mainly for skin and hair follicles.
PT-141: What It Is and What It Does
A melanocortin-system peptide studied in sexual-behavior research — and, as the drug bremelanotide, FDA-approved for a specific desire disorder.
ARA-290: What It Is and What It Does
An EPO-derived peptide stripped of its blood-building action, studied for nerve repair and inflammation.
Oxytocin Acetate: What It Is and What It Does
A cyclic nonapeptide hormone at the center of oxytocin-receptor and social-behavior research.
Ipamorelin: What It Is and What It Does
A selective growth-hormone 'go' signal — nudges GH release without stirring up other hormones.
HCG: What It Is and What It Does
Mimics the body's luteinizing hormone — a long-standing tool in reproductive and hormone research.
Glutathione: What It Is and What It Does
The cell's master antioxidant — a tripeptide central to redox and detox research.
CJC-1295 (No DAC): What It Is and What It Does
A longer-lasting copy of the body's 'release growth hormone' signal (GHRH).
BPC-157 + TB-500: What It Is and What It Does
A two-peptide repair-and-recovery research blend (BPC-157 + TB-500).
Semaglutide: What It Is and What It Does
Mimics the gut 'fullness' hormone GLP-1 — a headline compound in metabolism and blood-sugar research.
SS-31: What It Is and What It Does
A mitochondria-targeting peptide — studied for how cells keep their energy 'power plants' running.
Lemon Bottle: What It Is and What It Does
A three-component lipolytic solution — phosphatidylcholine, bromelain and riboflavin — whose research record belongs to the individual ingredients rather than to the finished formula.
Epithalon: What It Is and What It Does
A four-amino-acid pineal peptide from Russian gerontology research — studied for telomerase activity and circadian signalling.
Sermorelin: What It Is and What It Does
The first 29 amino acids of growth-hormone-releasing hormone — the fragment that carries the signalling activity.
5-Amino-1MQ: What It Is and What It Does
A small-molecule NNMT inhibitor — not a peptide — studied mainly in cell and rodent metabolic models.
Enclomiphene Citrate: What It Is and What It Does
The active half of clomiphene, studied for raising the body’s own testosterone without switching off sperm production.