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Peptides Plus

A reference for health-focused adults and practitioners researching peptide protocols. Evidence-based, condition-specific, and entirely free of commercial interest.

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Protocols Research Stage

Does Retatrutide's Cardiometabolic Safety Profile in 2026 Support Higher-Dose Injectable Strategies Over Lower-Dose Alternatives?

Phase 2 and TRIUMPH-1 Phase 3 data show retatrutide's cardiometabolic burden is manageable at 9 mg but clinically meaningful at 12 mg in patients with pre-existing cardiac risk. The glucagon receptor-mediated heart rate increase is the primary signal. No oral formulation exists. The 9 mg dose is the evidence-supported inflection point where efficacy is maximised without disproportionate cardiometabolic cost.

August 5, 2026 · 11 min read
Protocols Research Stage

What Did the FDA's Pharmacy Compounding Advisory Committee Recommend in July 2026 About BPC-157, KPV, TB-500, and MOTS-c — and What Safety Data Drove Those Votes?

In July 2026, the FDA's Pharmacy Compounding Advisory Committee (PCAC) voted against recommending BPC-157, TB-500, KPV, and MOTS-c for the 503A bulk drug substances list. The committee cited absent human pharmacokinetic data, unresolved oncological signals for the angiogenic peptides, and no approved human indication for any of the four compounds as the primary evidentiary basis for each negative vote.

August 4, 2026 · 12 min read
Protocols Research Stage

What Is the Human Evidence for Rusfertide as a Hepcidin-Mimetic Peptide in Polycythemia Vera in 2026 — and How Does It Affect Phlebotomy Burden and Hematocrit Control?

Rusfertide (PTG-300) is a synthetic hepcidin mimetic that suppresses erythropoiesis by blocking ferroportin-mediated iron export. In the Phase 2 REVIVE trial and the pivotal Phase 3 VERIFY trial, subcutaneous rusfertide eliminated or sharply reduced therapeutic phlebotomy requirements and maintained hematocrit below 45% in most polycythemia vera patients, establishing the strongest human evidence for iron restriction as a cytoreduction-independent disease-control strategy.

August 3, 2026 · 11 min read
Protocols Research Stage

Why Does Gastric Acid Destroy Oral Semaglutide — and What Does 2026 Research Propose to Fix It?

Gastric acid degrades oral semaglutide through direct acid-catalysed hydrolysis at pH 1 to 3 and through pepsin activation that cleaves semaglutide's backbone before it reaches absorptive epithelium. A 2026 review by Nayak, Dessai, and Nayak identifies acid protection as the central unsolved engineering challenge and proposes novel strategies to overcome it.

July 28, 2026 · 10 min read
Protocols Research Stage

What Does 2026 Research Reveal About Semaglutide's Cardiac ECM Remodelling and Multi-Organ Biological Age Reduction?

A 2026 Scientific Reports study and ADA 2026 proteomics data show that semaglutide attenuates cardiac ECM remodelling by restoring gut-barrier integrity and suppressing myocardial collagen deposition in obesity models, while a mortality-trained proteomic clock across SELECT and STEP cohorts found semaglutide 2.4 mg reduced multi-organ biological age by approximately 5.2% — with the largest effects in heart and kidney.

July 28, 2026 · 11 min read
Protocols Research Stage

How Does BPC-157 Achieve Analgesia Independently of Tissue Repair — What Does the 2026 Yuan Review Reveal?

The 2026 Yuan review in International Journal of Molecular Sciences identifies three analgesic mechanisms in BPC-157 that operate independently of structural tissue repair: selective eNOS upregulation via the Src–Caveolin-1–eNOS pathway, suppression of TNF-α and IL-6 driving peripheral nociceptor sensitisation, and dose-dependent attenuation of neurogenic pain in formalin Phase 1 — a spinal-level effect separable from local wound healing.

July 27, 2026 · 9 min read

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Every protocol article on Peptides Plus includes a structured safety section covering known adverse effects, contraindications, and evidence gaps. We treat incomplete evidence as information, not an excuse to omit warnings.

Where no controlled human safety data exists, that is stated explicitly. Where contraindications are documented, they are presented before dosing information, not after it. The deliberate, consistent placement of safety information is part of what makes this site useful — and what makes it responsibly citable.

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Peptides Plus publishes evidence-based protocol summaries for health-focused adults and practitioners. No supplements are sold here. No content is sponsored. The editorial commitment is to accurate characterisation of evidence — including where it is preliminary, absent, or conflicted.

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