The Lab

Reconstitution guides, a growing peptide reference, and bench-ready calculators. For research and educational reference only.

A lab mini-fridge containing a Melanotan II vial next to a syringe and unlabeled vial on a bench.
Melanotan II: Reference Overview and Reconstitution Notes

Melanotan II is a synthetic cyclic peptide analog of alpha-melanocyte-stimulating hormone, grouped with skin and cosmetic research compounds, and it is research-only and not FDA-approved. Read more...
Diagram of Mazdutide reconstitution, showing diluent liquid directed by an arrow into the powder vial next to a clock.
Mazdutide: Reference Overview and Reconstitution Notes

Mazdutide is a synthetic oxyntomodulin-based dual GLP-1/glucagon receptor agonist peptide grouped under metabolic and weight regulation, approved in China for obesity but not FDA-approved and treated as investigational elsewhere. Read more...
A labeled Matrixyl vial, an unlabeled vial of liquid, a syringe, and a small clock on a lab bench.
Matrixyl: Reference Overview and Reconstitution Notes

Matrixyl is a trade name for palmitoyl signal peptides (matrikines) used as topical cosmetic actives, studied in the skin and anti-aging category, and classified as a cosmetic ingredient rather than... Read more...
An LL-37 vial, a vial of liquid, a syringe, a clock, and a notebook on a lab bench in ink-and-wash style.
LL-37: Reference Overview and Reconstitution Notes

LL-37 is a human cathelicidin-family antimicrobial peptide grouped under immune and host-defense research, and it is a research-only compound not approved by any regulator for exogenous human use. Read more...
Ink-and-wash drawing of a Livagen powder vial next to a diluent vial and syringe, showing the reconstitution step.
Livagen: Reference Overview and Reconstitution Notes

Livagen is a synthetic short-peptide (Khavinson-class) bioregulator, the tetrapeptide Lys-Glu-Asp-Ala, grouped under anti-aging and liver-focused tissue bioregulators and sold as a research-only compound that is not FDA-approved. Read more...
Ink-and-wash drawing of a Liraglutide vial in a wire rack next to a syringe and an ice pack on a lab bench.
Liraglutide: Reference Overview and Reconstitution Notes

Liraglutide is an acylated glucagon-like peptide-1 (GLP-1) receptor agonist in the metabolic and weight-regulation category, and it has received regulatory clearance for specific indications. Read more...
An ink-and-wash illustration of a KPV vial, syringe, unlabeled water vial, ice pack, and thermometer on a lab bench.
KPV: Reference Overview and Reconstitution Notes

KPV is a synthetic melanocortin-derived tripeptide studied mainly in inflammation and immune research. It is a research-only compound not approved by any regulator. Read more...
A labeled Kisspeptin vial, an unlabeled liquid vial, a syringe, a clock, and a thermometer on a lab bench.
Kisspeptin: Reference Overview and Reconstitution Notes

Kisspeptin is a KISS1-derived neuropeptide family in the reproductive and neuroendocrine research category, and it is research-only and not approved by any regulator. Read more...
An ink-and-wash illustration of an IGF-DES vial in a rack next to an unlabeled vial, syringe, and ice pack.
IGF-DES: Reference Overview and Reconstitution Notes

IGF-DES is a truncated analog of insulin-like growth factor 1 (IGF-1) in the peptide hormones and growth factors family, studied only in preclinical growth-factor and cell-proliferation research, and it is... Read more...
A vial labeled Humanin on a notebook next to a thermometer, with an open lab fridge and ice pack in the background.
Humanin: Reference Overview and Reconstitution Notes

Humanin is a mitochondrial-derived peptide studied in longevity, metabolic, and neuroprotection research contexts, and it is not FDA-approved for any indication. Read more...
An HMG vial, a plain unlabeled vial of liquid, and a syringe on a sunlit lab bench.
HMG (Menotropins): Reference Overview and Reconstitution Notes

HMG (menotropins) is a urine-derived gonadotropin preparation combining FSH and LH activity, grouped in the reproductive and fertility research category, and used as a prescription product for specific ovulation-related indications;... Read more...
A labeled vial of Hexarelin powder, an unlabeled liquid vial, a syringe, and a notebook on a lab bench near a fridge.
Hexarelin: Reference Overview and Reconstitution Notes

Hexarelin is a synthetic hexapeptide of the growth hormone secretagogue class (a ghrelin-receptor agonist) that is not FDA-approved for any indication and is prohibited in sport under the WADA Prohibited... Read more...
A capped Gansulin pen, a fine insulin syringe, a magnifying glass, and an unlabeled vial on a lab bench.
Refilling a GLP-1 Pen: What Reddit Gets Right

Refilling GLP-1 pens: we fact-check Reddit's top threads on 3 mL cartridges, cover reconstitution math, and share lab handling notes for research use. Read more...
A GHRP-2 vial, an unlabeled vial of liquid, and an insulin syringe on a lab bench beside a clock.
GHRP-2: Reference Overview and Reconstitution Notes

GHRP-2 (pralmorelin) is a synthetic hexapeptide growth hormone secretagogue studied in the context of growth hormone release, and it is research-only and not FDA-approved in the United States. Read more...
A vial labeled GDF-8 in a rack next to an ice pack, thermometer, and syringe on a lab bench.
GDF-8 (Myostatin): Reference Overview and Reconstitution Notes

GDF-8, also called myostatin, is a TGF-beta superfamily growth factor grouped under metabolic and muscle-regulation research, and it is research-only and not FDA-approved. Read more...
An uncapped Gansulin pen on a bench next to tipped-over, wasted unlabeled vials and a thermometer.
Gansulin Pen: Stop Wasting Vials on Bad Diluent

The Gansulin pen is a reusable metal laboratory device that holds a 3 mL glass cartridge for measuring and handling precise small volumes of reconstituted peptide research solutions at the... Read more...
A labeled FOXO4-DRI vial, syringe, ice pack, clock, and notebook on a lab bench in an ink-and-wash style.
FOXO4-DRI: Reference Overview and Reconstitution Notes

FOXO4-DRI is a synthetic D-retro-inverso peptide studied in the anti-aging and longevity research category, and it is research-only and not approved by any regulator. Read more...
A labeled Follistatin vial, an unlabeled liquid vial, a syringe, and a notebook on a sunlit lab bench.
Follistatin: Reference Overview and Reconstitution Notes

Follistatin is a secreted glycoprotein of the myostatin and TGF-beta binding family, grouped in muscle and metabolic research, and is a research-only compound that is not FDA-approved. Read more...
An EPO vial in a wire rack on a lab bench next to an open lab fridge with a thermometer.
EPO: Reference Overview and Reconstitution Notes

EPO (erythropoietin) is a glycoprotein hormone and erythropoiesis-stimulating agent, grouped as a hematopoietic growth factor. It is a prescription biologic, not approved by any regulator for the uses described here,... Read more...
An open lab mini-fridge containing an Ecnoglutide vial, with a syringe and unlabeled vial on the bench.
Ecnoglutide: Reference Overview and Reconstitution Notes

Ecnoglutide is an investigational cAMP-biased GLP-1 receptor agonist peptide grouped under metabolic and weight regulation research, and it is not FDA-approved in the United States. Read more...
A labeled vial of Dermorphin in a rack next to an unlabeled liquid vial, a syringe, and a notebook on a lab bench.
Dermorphin: Reference Overview and Reconstitution Notes

Dermorphin is a naturally occurring opioid heptapeptide from amphibian skin, grouped with analgesic and opioid-receptor research peptides, and it is not FDA-approved (research-only). Read more...
A Gansulin pen and a glass cartridge under a magnifying glass, showing leftover liquid, in an ink-and-wash style.
Dead volume is stealing doses from your peptide pen

Dead volume is the fixed hollow channel running through a reconstitution pen needle and its cartridge connector that must be filled with liquid before any measured dose leaves the pen.... Read more...
Before-and-after views of Crystagen vial showing dry powder and fully dissolved liquid next to a blank clock.
Crystagen: Reference Overview and Reconstitution Notes

Crystagen is a short synthetic peptide composed of a Glu-Asp-Pro tripeptide sequence, belonging to the Khavinson bioregulator family. It is classified as an immune bioregulator and is supplied solely for... Read more...
Lab fridge with a glowing vial next to a shipping box and vials on a bench under a blank clock.
Cold Chain Basics: Keeping Vials Cold in Transit

An educational reference on moving refrigerated vials while keeping them within a stable cool range and avoiding both heat and accidental freezing. Read more...
Get more of The Lab in your Google results