FDA-approved, investigational, preclinical, or a different regulatory category entirely (like cosmetics) — every entry says which, clearly, every time.
GLP-1 (glucagon-like peptide-1) receptor agonist
Dual GIP/GLP-1 receptor agonist
Triple agonist — GIP, GLP-1, and glucagon receptor
Synthetic peptide fragment (derived from a protein identified in gastric juice)
Copper-binding tripeptide
Synthetic fragment of Thymosin Beta-4
Growth hormone–releasing hormone (GHRH) analog
Growth hormone secretagogue (ghrelin/growth hormone secretagogue receptor agonist)
Growth hormone–releasing hormone (GHRH) analog
Mitochondrial-derived peptide
Tripeptide fragment of alpha-melanocyte-stimulating hormone (α-MSH)
Synthetic tetrapeptide, based on the natural pineal gland extract "epithalamin"
Thymic peptide (immune-modulating)