The GLP-1 receptor agonist class has transformed metabolic research and pharmaceutical development. With semaglutide (Ozempic/Wegovy) and tirzepatide (Mounjaro/Zepbound) dominating headlines, researchers are increasingly interested in the broader GLP-1 peptide landscape – including research-grade compounds not available as approved drugs. This article compares the major GLP-1 receptor-targeting peptides relevant to research, with a focus on receptor […]
Peptide Profiles
Peptide Profiles collects compound-by-compound research overviews covering mechanisms, published studies, and practical context. Use this archive to compare individual peptides and explore the literature behind them.
Tesamorelin Research: What the Published Data Actually Shows
Tesamorelin is one of the most studied growth hormone-releasing hormone (GHRH) analogs in the research peptide space – and for good reason. It’s one of the few peptides in this category with FDA-approved status (as Egrifta, for HIV-associated lipodystrophy), which means the published literature runs deep. This article surveys what the research actually shows, focusing […]
BPC-157 and TB-500: What the Combined Research Data Shows
BPC-157 and TB-500 are two of the most researched peptides in the tissue repair space, and they’re frequently studied together. But the research behind them differs substantially – BPC-157 has a deep (if mostly preclinical) literature, while TB-500’s data comes primarily from its parent protein, thymosin beta-4. Here’s what the published research actually shows about […]
SS-31: The Peptide That Targets Mitochondria From the Inside
SS-31 (elamipretide) binds cardiolipin in the inner mitochondrial membrane, stabilizing respiratory chain supercomplexes and restoring energy production at the source. FDA-approved for Barth syndrome in 2025, it represents a new category of mitochondrial-targeted therapeutics under active research across cardiac, renal, neurological, and aging models.
Sermorelin vs Ipamorelin: A Research Comparison
Sermorelin and Ipamorelin are two of the most widely studied peptides in growth hormone research. Both stimulate growth hormone (GH) release from the anterior pituitary, but they work through entirely different receptor pathways and produce distinct pharmacological profiles. Understanding these differences is essential for researchers designing studies involving growth hormone secretagogues. Quick Comparison Property Sermorelin […]
Semaglutide vs Tirzepatide vs Retatrutide: Comparing GLP-1 Agonists
GLP-1 receptor agonists are among the most actively researched peptide classes in modern pharmacology. Semaglutide, tirzepatide, and retatrutide represent three generations of incretin-based compounds — each building on the previous with additional receptor targets and expanded pharmacological profiles. This article compares their mechanisms, published research, and key differences for researchers working in metabolic science. Quick […]
GLOW: BPC-157 + TB-500 + GHK-Cu — Mechanistic Rationale in Research
GLOW contains BPC-157, TB-500, and GHK-Cu. The research rationale for this blend is based on published literature discussing those compounds individually in areas such as tissue repair, angiogenesis, fibroblast activity, collagen signaling, and extracellular matrix remodeling.
KLOW: Dual Incretin + GH Fragment for Metabolic Research
What Is KLOW? KLOW is a combination research blend containing two metabolic peptides in a single vial: GLP-1T — a dual GIP/GLP-1 receptor agonist — and AOD9604, the C-terminal fragment (amino acids 176-191) of human growth hormone. This combination targets metabolic regulation through two distinct but complementary mechanisms: incretin receptor signaling and growth hormone-mediated lipolysis. […]
Nootropic Peptides: The Research Tools for Brain Performance
What Makes a Peptide “Nootropic”? The term nootropic — coined by Romanian psychologist Corneliu Giurgea in 1972 — originally described compounds that enhance learning and memory, protect the brain against injury, and have minimal side effects and toxicity. In modern research, nootropic peptides are those that modulate cognitive function through direct or indirect effects on […]
B12 Peptide Research Overview
Vitamin B12: Far More Than a Vitamin Vitamin B12 (cobalamin) is the largest and most structurally complex vitamin in human biochemistry. At its core sits a cobalt atom coordinated within a corrin ring — a structure so intricate that its total synthesis by Woodward and Eschenmoser in 1972 required over 100 synthetic steps and remains […]