HGH Research Peptides

Recombinant human growth hormone (somatropin, 191 amino acids) is the direct-supply approach to GH research, distinct from secretagogue protocols that stimulate endogenous pituitary release. Where peptides like CJC-1295 and Ipamorelin preserve the natural pulsatile GH pattern, recombinant HGH delivers the hormone directly, producing a continuous exposure profile useful for protocols where pituitary function is compromised or absent.

Research areas span body-composition models, hepatic gene-expression research, IGF-1-axis investigation, and protocols comparing pulsatile versus continuous GH exposure. Different kit sizes accommodate varying protocol lengths. RetaLABS stocks research-grade HGH in four kit sizes: 100IU (10IU × 10), 240IU (24IU × 10), 360IU (36IU × 10), and 400IU (40IU × 10). The 360IU kit is the popular mid-range option and is currently discounted, offering more material per order than the smaller kits at a lower per-IU cost.

For mechanistic detail and the secretagogue-versus-direct-supply comparison, see the HGH Research Guide and the HGH vs Peptide Secretagogues Comparison. For reconstitution protocols, see the Peptide Reconstitution Guide.