New Research Added

Recently added research syntheses on PeptideStacks.

Educational research-literacy content only. Not medical advice, not dosing guidance, not sourcing advice, and not a protocol for human or animal use. See our responsible information policy.

• 2026-05-21
  Triple Incretin Agonism — Retatrutide and the GLP-1 / GIP / Glucagon Evidence Base

  Critical research-literacy review of the GLP-1 / GIP / glucagon triple-agonist class — receptor pharmacology, Phase II trial evidence for retatrutide, comparison with tirzepatide, and the UK regulatory framing.

• 2026-05-21
  Peptide Stacking Fundamentals — What 'Stack' Means in the Research Literature

  An evidence-literacy introduction to what peptide stacking means in published research, when combination evidence is direct vs inferred, and how to read a stack page on PeptideStacks responsibly.

• 2026-05-21
  BPC-157 + TB-500 — A Critical Review of the Combination Evidence

  Critical review of the published in vitro and animal-model studies examining BPC-157 and TB-500 together — what the literature shows, what it doesn't, and where the replication gaps sit.

• 2026-05-21
  UK Peptide Regulation 2026 — MHRA Position, POM Class, and Where the Lines Sit

  Where UK peptide regulation stands in 2026. The MHRA framework, the GLP-1 / POM reclassification picture, the borderline-product test, and the compounds attracting active enforcement.

• 2026-05-15
  Reading a Peptide Research Study — A Glossary of Terms

  How to interpret peptide research papers — methodology terms, study design language, and what 'translational potential' actually means.

• 2026-05-13
  Why Animal-Model Peptide Studies Don't Translate to Human Outcomes

  Most peptide research is rodent — what limits extrapolation to human pharmacokinetics, pharmacodynamics and clinical effect.

• 2026-05-10
  The Sikiric Lab Body of Work on BPC-157 — A Citation Map

  Predrag Sikiric's 30+ year research program on BPC-157 — what each major paper established, organised by tissue system.

• 2026-05-08
  GLP-1 Receptor Biology Explained — From Exendin to Retatrutide

  The evolution of the incretin class — GLP-1 alone, dual GIP/GLP-1 (Tirzepatide), to triple GIP/GLP-1/glucagon (Retatrutide). Mechanism and the rationale for adding receptors.

• 2026-05-05
  Khavinson Bioregulators — The Soviet Peptide Tradition

  Vladimir Khavinson's four-decade research program on short peptide bioregulators — Epitalon, Thymalin, Cortexin, Pinealon. Methodology and lifespan extension claims.

• 2026-04-30
  MHRA vs FDA vs EMA — Peptide Regulatory Comparison 2026

  How the UK MHRA, US FDA and EU EMA each classify and regulate research-grade peptides in 2026. Approval pathways, enforcement priorities, import rules.