K4 Elite
Reference notes and summaries of the published research literature on the peptides we supply. For in-vitro research context only.
Why researchers study BPC-157 and TB-500 together — overlapping vs distinct repair pathways, and what the animal literature does and doesn't establish. Research use only.
Read the research →How to reconstitute a lyophilized peptide with bacteriostatic water, with the concentration and volume math worked out step by step. For lab…
Read the research →How the single, dual, and triple incretin agonists differ by receptor target and trial data — semaglutide vs tirzepatide vs retatrutide, com…
Read the research →The research behind Tirzepatide, the dual GIP/GLP-1 receptor agonist — what the incretin mechanism is, what the trials reported, and the hon…
Read the research →MOTS-c is encoded in mitochondrial DNA, not nuclear DNA — and that's why researchers call it an exercise mimetic. The AMPK research, explain…
Read the research →Retatrutide is a triple GIP/GLP-1/glucagon receptor agonist. Here's the research on why the third receptor matters — and why it's the counte…
Read the research →A research-framed guide to the “HGH peptides” — the GHRH analogs and ghrelin-receptor secretagogues that prompt the body’s own growth hormon…
Read the research →Why researchers pair Tesamorelin with Ipamorelin — the GHRH-plus-GHRP synergy, what each brings, and the honest gap in the evidence. For lab…
Read the research →A research-framed overview of retatrutide, the GIP/GLP-1/glucagon triple agonist, covering its phase 2 obesity and liver-fat data. Research …
Read the research →A research-framed look at Selank, a tuftsin-derived peptide studied for anxiolytic activity through GABA and enkephalin pathways — without t…
Read the research →A look at the research behind Semax, an ACTH(4–10) analog studied for BDNF, neuroprotection and cognition — and why most of its data is Russ…
Read the research →The research story of GHK-Cu, the copper-binding tripeptide studied for collagen, skin remodeling and gene expression. For laboratory resear…
Read the research →Why researchers pair Ipamorelin with CJC-1295 — the two mechanisms behind GH-secretagogue research, explained with the original studies. For…
Read the research →What the research literature actually says about TB-500 and its parent molecule Thymosin Beta-4 — actin, cell migration, and angiogenesis. F…
Read the research →A research-framed overview of the preclinical literature on BPC-157 — tendon, ligament, muscle, and gut models, plus its proposed angiogenic…
Read the research →