The WADA Prohibited List is the World Anti-Doping Agency’s official list of substances and methods banned in sport. It is updated every year.
Stability describes how well a compound keeps its original chemical structure over time when exposed to things like heat, light, moisture, or changes in pH.
Research Use Only (RUO) is a labeling category. It means a product is sold for laboratory research — not as a medicine, food, or supplement.
Pharmacokinetics is the science of measuring what happens to a compound over time in a study — how its levels rise, spread, break down, and clear in the test system.
Molecular weight is the mass of one molecule of a compound, usually written in daltons (Da) or grams per mole (g/mol).
A melanocortin receptor is a protein on the surface of cells that receives signals from melanocortin hormones. Humans have five types, named MC1R through MC5R.
Lyophilized means freeze-dried. A liquid is frozen and the water is removed under vacuum, leaving a dry powder.
A lot number is a code stamped on each batch of a product so that batch can be traced back to when and how it was made — and matched to its test results.
Half-life is the time it takes for half of a compound to break down or be cleared in a test system or study — a measured number reported in published research.
GHRH is a natural signal molecule made in the brain that tells the pituitary gland to release growth hormone; several research peptides are lab-made analogs of it.