Peptides are short chains of amino acids — generally between 2 and 50 amino acids in length — that act as precise signaling molecules in the body. Hundreds of peptides exist naturally; therapeutic peptide medicine uses synthetic versions of selected peptides to modulate specific physiological pathways: tissue repair, growth hormone release, immune function, cognition, sexual function, and metabolic balance. At Regeneris Therapy we offer peptide protocols under medical supervision only, using compounded products from COFEPRIS-regulated Mexican compounding pharmacies with documented identity, purity, and sterility testing. Therapeutic peptides are not supplements. They are prescription medicines that require an honest medical evaluation, baseline labs, and supervised dosing. Here is what peptides actually are, the categories we offer, why supervision matters, and how the COFEPRIS regulatory framework shapes safe practice in Mexico.
What peptides are: short amino-acid chains as signaling molecules
Every protein in your body is built from amino acids. A long chain (typically 50+ amino acids) is a protein; a short chain (2–50 amino acids) is a peptide. Peptides are the body's natural signaling vocabulary — insulin is a peptide, growth hormone is a peptide, oxytocin is a peptide. Therapeutic peptide medicine uses synthetic versions of carefully selected peptides to influence the same receptors and pathways the body already uses. Because peptides are highly specific to their target receptors, they tend to have cleaner effect profiles than small-molecule drugs that often bind to multiple unintended targets. Some peptides are FDA-approved drugs (semaglutide, tirzepatide, octreotide); others are research-grade peptides used in clinical compounding under physician supervision; many are sold as supplements, often with insufficient quality and unclear regulatory status. We work only with the first two categories. For a broader view of regenerative options, see our stem cells hub.
Categories we offer: regenerative, GH-axis, nootropic, sexual, fat-loss
Our peptide menu groups around five mechanistic categories. Regenerative peptides such as BPC-157 (Body Protection Compound, derived from a gastric protein) and TB-500 (Thymosin Beta-4 fragment) for tissue repair, gut healing, and orthopedic support. Growth hormone secretagogues — CJC-1295 and Ipamorelin combinations, Sermorelin, MK-677 — which stimulate the pituitary's own pulsatile GH release rather than introducing exogenous hormone. Nootropic and neuroprotective peptides such as Selank and Semax for cognitive support, anxiety modulation, and post-viral cognitive recovery (relevant for Long COVID). Sexual wellness peptides — primarily PT-141 (Bremelanotide) for libido and arousal in both men and women, independent of the vascular mechanism that PDE5 inhibitors target (see our erectile dysfunction page). And fat-loss / body recomposition peptides like AOD-9604 and Tesamorelin for visceral fat reduction in metabolically appropriate candidates.
