IGF-1 LR3 is a modified growth-factor analog sold in research markets and discussed for muscle growth. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
NAD+ is a coenzyme involved in cellular redox and energy processes; chemically, it is not a peptide. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
KPV is a short peptide fragment associated with alpha-melanocyte-stimulating hormone research. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Thymosin alpha-1 has been studied for immune-related effects and has differing regulatory histories across countries. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Similar names can hide major differences among developmental compounds, unapproved products, and an approved implant for a rare medical indication. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Melanotan II is promoted online for tanning and sexual effects but is not an FDA-approved tanning drug. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Bremelanotide is an FDA-approved prescription drug for a defined sexual-health indication in certain premenopausal women. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Kisspeptin is a natural signaling peptide involved in the reproductive hormone axis. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Selank and Semax are often grouped as nootropic peptides, but they have different sequences, proposed actions, and research histories. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.
Semax is a synthetic peptide discussed for neurological and cognitive effects, with research and use history outside the United States. Learn the evidence, approval status, safety questions, and FAQs in this plain-English guide.