In-depth analyses, mechanism reviews, and evidence summaries for researchers and informed individuals. All articles link to peer-reviewed sources.
Research Library
Showing 17 of 17 articles
Featured Analysis
Recovery12 min read
BPC-157 vs TB-500: A Comparative Analysis for Tissue Repair
BPC-157 and TB-500 represent two distinct but complementary mechanisms for tissue repair. BPC-157 acts locally through the FAK-paxillin pathway, while TB-500 provides systemic healing via actin regulation. This analysis examines their mechanisms, research applications, and synergistic potential.
BPC-157 and TB-500 represent two distinct but complementary mechanisms for tissue repair. BPC-157 acts locally through the FAK-paxillin pathway, while TB-500 provides systemic healing via actin regulation. This analysis examines their mechanisms, research applications, and synergistic potential.
Key Findings
BPC-157 demonstrates superior local tissue repair, particularly for GI and tendon injuries
TB-500 provides systemic healing and is preferred for widespread or hard-to-reach injuries
Combined use shows additive effects in preclinical models
Different administration routes optimise each peptide's mechanism
The GLP-1 agonist class has transformed metabolic research. With semaglutide, tirzepatide, and the emerging triple-agonist retatrutide now under study, researchers have an expanding toolkit. This guide compares mechanisms, efficacy data, and research profiles across all three.
Key Findings
Tirzepatide demonstrates superior weight reduction (20.9%) vs semaglutide (14.9%) in trials
Retatrutide (GIP/GLP-1/glucagon triple agonist) shows up to 24% weight loss in Phase 2
The combination of CJC-1295 (GHRH analog) and Ipamorelin (GHRP) is considered the gold standard for GH optimization in research settings. This analysis examines the pharmacokinetics, synergistic mechanisms, and research outcomes of this widely-studied protocol.
Key Findings
Synergistic GH pulse: 3–5x greater than either peptide alone in animal models
Epithalon's ability to activate telomerase and elongate telomeres has made it one of the most studied longevity peptides. This article examines the science of telomere biology, Khavinson's 35+ years of research, and the implications for anti-aging science.
Key Findings
Telomere elongation demonstrated in human somatic cells in vitro
Extended lifespan in multiple animal models (fruit flies, mice, rats)
Russia's contribution to nootropic peptide research has produced two of the most studied cognitive enhancers: Selank and Semax. Both have undergone clinical trials and are approved in Russia for anxiety and cognitive disorders respectively.
Key Findings
Selank demonstrates anxiolytic effects comparable to diazepam without sedation in studies
Semax upregulates BDNF by up to 400% in animal models
Thymosin Alpha-1 (Tα1) has the most extensive validation of any immunomodulatory peptide, with approval in 35+ countries. This review covers its mechanisms, applications from hepatitis to COVID-19 research, and its role in modern immune optimization protocols.
Key Findings
Approved in 35+ countries for hepatitis B and C treatment
Demonstrated 20% survival improvement in sepsis studies
GHK-Cu's ability to modulate gene expression on a massive scale has made it one of the most fascinating peptides in longevity research. Loren Pickart's decades of research reveal a peptide that may be central to the body's wound healing and anti-aging response.
Key Findings
Regulates expression of 31.2% of human genome in microarray studies
Upregulates collagen and elastin synthesis in fibroblast studies
The peptide research space exists in a complex regulatory environment. This guide helps researchers understand FDA classifications, USADA warnings, compounding pharmacy regulations, and evidence-based risk assessment for peptide protocols.
Key Findings
Most research peptides lack large-scale human clinical safety data
FDA has issued guidance on specific peptides including BPC-157 and TB-500
NAD+ precursors and the mitochondria-derived peptide MOTS-c represent a new frontier in metabolic and longevity research. This article examines how these molecules interact with sirtuins, AMPK pathways, and mitochondrial biogenesis to influence aging and metabolic health.
Key Findings
MOTS-c is encoded in mitochondrial DNA — a unique class of peptide
NAD+ declines ~50% from age 40 to 60, correlating with metabolic decline
PT-141 (bremelanotide) and Kisspeptin represent two distinct but complementary approaches to sexual health research. PT-141 acts centrally via melanocortin receptors, while Kisspeptin modulates the HPG axis. This review examines their mechanisms and research profiles.
Key Findings
PT-141 is FDA-approved (Vyleesi) for hypoactive sexual desire disorder in premenopausal women
Kisspeptin activates GnRH neurons, driving LH and FSH pulses
Both Sermorelin and Tesamorelin are synthetic GHRH analogs that stimulate endogenous GH release, but they differ significantly in half-life, potency, and research applications. This comparison examines their pharmacological profiles and research use cases.
Key Findings
Tesamorelin is FDA-approved for HIV-associated lipodystrophy (Egrifta)
Sermorelin has a shorter half-life (~10 min) vs Tesamorelin (~26 min)
KPV (Lys-Pro-Val) is a C-terminal fragment of alpha-MSH with potent anti-inflammatory properties in the gut. Larazotide acetate (AT-1001) is a tight junction regulator studied in celiac disease. Together, they represent a new approach to gut barrier research.
Key Findings
KPV reduces TNF-α and IL-6 in intestinal inflammation models
Larazotide reduces intestinal permeability by regulating tight junction proteins
Dihexa (PNB-0408) is a potent hepatocyte growth factor (HGF) potentiator that promotes synaptogenesis. Noopept is a synthetic dipeptide derived from piracetam with BDNF and NGF-upregulating properties. This review examines their mechanisms and research applications.
Key Findings
Dihexa is reportedly 10 million times more potent than BDNF in promoting synaptogenesis
Noopept increases BDNF and NGF expression in the hippocampus
Melanotan II is a synthetic analog of alpha-MSH with effects on pigmentation, sexual function, and appetite. Oxytocin, the "bonding hormone," has been studied for social behavior, anxiety, and metabolic effects. This article reviews their research profiles and mechanisms.
Key Findings
Melanotan II activates MC1R for pigmentation and MC4R for sexual and appetite effects
Oxytocin reduces cortisol and promotes prosocial behavior in controlled studies
5-Amino-1MQ is a small molecule NNMT inhibitor that activates metabolic pathways similar to caloric restriction. SLU-PP-332 is an ERRα/γ agonist that mimics the effects of exercise at the molecular level. Both represent cutting-edge metabolic research compounds.
Key Findings
5-Amino-1MQ reduces fat cell size and increases NAD+ levels in adipose tissue
SLU-PP-332 activates exercise-mimetic gene programs without physical activity
Delta Sleep-Inducing Peptide (DSIP) was first isolated from rabbit cerebral venous blood during slow-wave sleep. This review examines DSIP's mechanisms, its interaction with the HPA axis, and the broader science of peptide-mediated sleep regulation including the AEDG peptide.
Key Findings
DSIP reduces sleep onset latency and increases slow-wave sleep duration
Modulates cortisol and ACTH release through HPA axis interaction
Cagrilintide is a long-acting amylin analog developed by Novo Nordisk, currently in Phase 3 trials in combination with semaglutide (CagriSema). This article examines amylin biology, cagrilintide's mechanism, and the emerging dual-hormone approach to metabolic research.
Key Findings
Amylin is co-secreted with insulin and regulates gastric emptying and satiety
Cagrilintide has a 7-day half-life, enabling once-weekly dosing
