Glossary Terms

The concentration that cuts a biological process in half — used to measure how potent an inhibitor is.Lower IC50 =

The disconnect between what we know from animal and lab studies and what we actually know from human clinical trials

The brain-to-adrenal gland stress response system — the chain of command that produces cortisol when you’re under stress.CRH (hypothalamus) →

How long it takes for half the compound to clear from your blood — a measure of how long it

The most common type of receptor on cell surfaces — activated by peptide hormones, neurotransmitters, and many drugs, triggering changes

A class of drugs that mimic GLP-1, a gut hormone released after eating — they stimulate insulin, suppress appetite, and

The ghrelin receptor — the second pathway through which growth hormone can be stimulated, separate from the GHRH pathway.A G

The brain’s signal to the pituitary to release growth hormone — the endogenous molecule that sermorelin and CJC-1295 mimic.Produced in

A receptor on immune cells originally designed to detect bacterial peptides — but also activated by some endogenous peptides involved

The hair follicle maintains a partial "immune-free zone" around its growing cells, protecting the genetically distinct hair shaft from immune