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, functional medicine researcher, data analyst, peptide specialist

, functional medicine researcher, data analyst, peptide specialist , functional medicine researcher, data analyst, peptide specialist

Marcus Reid is a functional medicine researcher, data analyst, and peptide specialist, and one of the people who built MyPeptidePal. The platform exists in part because of the years he spent immersed in clinical literature, real-world protocols, and the kind of hands-on experimentation that most textbooks skip entirely. He is not a physician and does not pretend to be. What he is, is someone who has done the work to understand how these compounds actually function at a biological level, what the research actually says versus what the forums claim, and how to explain it in a way that makes sense to anyone willing to learn. At MPP, Marcus contributed to building the knowledge base, the protocol frameworks, and the research systems that power the platform. His work covers tissue repair, metabolic health, hormonal optimization, longevity, cognitive function, and cosmetic applications. When the science gets complicated, his job is to make it click.

Articles by , functional medicine researcher, data analyst, peptide specialist

Tesamorelin and Ipamorelin: Growth Hormone Secretagogues for Performance and Recovery

Tesamorelin and ipamorelin are two distinct growth hormone secretagogues that act on separate receptor pathways: tesamorelin on the GHRH (growth hormone-releasing hormone) receptor and ipamorelin on the ghrelin receptor. They are frequently combined in wellness and performance protocols to amplify the GH pulse. Tesamorelin is an FDA-approved prescription drug with multiple controlled clinical trials behind it; ipamorelin has minimal human clinical data and no approved indication. This guide covers what each compound does, how they work individually and in combination, what the clinical evidence actually shows, dosing context, safety profiles, regulatory status, and how they compare to alternative approaches.

Tesamorelin Ipamorelin 28 min read

Vilon Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Vilon is a synthetic dipeptide bioregulator composed of just two amino acids (lysine and glutamic acid), making it one of the shortest known biologically active peptides. Developed through Professor Vladimir Khavinson's decades-long peptide bioregulator research program, it is studied primarily for its ability to remodel chromatin structure in aging cells and support immune system recovery, particularly thymic T-cell maturation. This guide covers what Vilon does, how it works at the cellular level, what the research shows across aging, immunity, oncology, and renal domains, dosing context from available studies, safety considerations including significant contraindications, and its current regulatory status.

Vilon 28 min read

Vesugen Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Vesugen is a synthetic tripeptide bioregulator composed of three amino acids (Lysine, Glutamic Acid, and Aspartic Acid, abbreviated KED), developed at the Saint Petersburg Institute of Bioregulation and Gerontology as part of Vladimir Khavinson's vascular peptide research program. It is studied primarily for its effects on endothelial cell renewal, vascular signaling normalization, neuroprotection, and biological aging, with its most specific mechanistic finding being direct binding to the MKI67 gene promoter to upregulate Ki-67 expression in vascular cells. This guide covers what Vesugen does, how it works, what the preclinical and limited clinical research shows, administration and dosing context, safety signals, and its current regulatory standing.

Vesugen 28 min read

Triptorelin Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Triptorelin is a synthetic decapeptide analog of gonadotropin-releasing hormone (GnRH), a superagonist that initially stimulates the pituitary gland before causing sustained suppression of sex hormones through receptor desensitization. It is FDA-approved for treating advanced prostate cancer and central precocious puberty, and is actively studied for endometriosis, ovarian protection during chemotherapy, and breast cancer applications. This guide covers triptorelin's mechanism of action, clinical evidence, dosing context, safety profile, regulatory status, and its emerging use in nanoparticle-based drug delivery research.

Triptorelin 26 min read

Tirzepatide Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Tirzepatide is a synthetic 39-amino acid peptide that simultaneously activates two incretin hormone receptors (the GIP receptor and the GLP-1 receptor), making it the first dual incretin agonist to receive FDA approval. Sold as Mounjaro for type 2 diabetes and Zepbound for obesity and obstructive sleep apnea, it has produced the largest weight loss outcomes ever recorded for a pharmacological treatment, averaging 20.9% body weight reduction in pivotal trials. This guide covers how tirzepatide works at the receptor level, what the Phase 3 clinical trial programs showed, dosing and escalation schedules, the full safety profile, regulatory and compounding status, and how it compares with other incretin therapies.

Tirzepatide 29 min read

Thymosin Beta-4 Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Thymosin Beta-4 is a naturally occurring 43-amino acid peptide found in virtually every nucleated cell in the human body, where it functions as the primary regulator of actin - the protein that controls how cells move and restructure themselves. It is most studied for tissue repair, cardiac protection, wound healing, and anti-inflammatory signaling, with over four decades of published research and completed Phase 2 human clinical trials across three indications. This guide covers what Thymosin Beta-4 does, how it works, what results research and real-world protocols report, dosing context, safety considerations, its regulatory and sports status, and how it compares to its fragment derivative TB-500.

Thymosin Beta 4 29 min read

Thymosin Alpha Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Thymosin Alpha-1 (also known as Ta1 or thymalfasin) is a 28-amino acid immunomodulatory peptide originally isolated from thymus tissue and one of the most extensively studied compounds of its class, with over three decades of human clinical trial data covering more than 11,000 subjects. It works by restoring immune balance rather than simply stimulating immunity: enhancing suppressed immune responses in chronic infections and cancer while dampening excessive or damaging inflammation. This guide covers what Thymosin Alpha peptide does, how it works mechanistically, what the clinical research shows, dosing context, safety profile, and its current regulatory status.

Thymosin Alpha 27 min read

Thymalin Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Thymalin is a multi-peptide complex extracted from bovine thymus gland tissue, belonging to the class of peptide bioregulators developed extensively in Soviet and Russian biomedical research. It is primarily studied for immune system restoration, reversal of age-related immune decline, and recovery from severe illness, with a randomized clinical trial showing it approximately halved in-hospital mortality in severe COVID-19 patients. This guide covers what Thymalin is, how it works at the molecular level, what the clinical and preclinical research shows, dosing context from the published literature, safety considerations, regulatory status, and how it compares to related thymic compounds.

Thymalin 29 min read

Testagen Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Testagen is a synthetic tetrapeptide bioregulator with the amino acid sequence Lys-Glu-Asp-Gly (KEDG), developed within the Khavinson research framework at the St. Petersburg Institute of Bioregulation and Gerontology. It is primarily studied for its proposed effects on the pituitary-thyroid axis, testosterone normalization, and age-related immune decline, with all available evidence coming from animal and cell-based studies. This guide covers what Testagen is proposed to do, how its mechanisms are explained in the current literature, what the preclinical research shows, how it is administered, and what the significant evidence gaps mean for anyone evaluating this compound.

Testagen 26 min read

Teriparatide Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Teriparatide is a synthetic 34-amino acid peptide corresponding to the biologically active N-terminal fragment of human parathyroid hormone, produced via recombinant DNA technology. It is FDA-approved for the treatment of osteoporosis in postmenopausal women, men, and individuals on long-term glucocorticoid therapy, and is the most extensively studied anabolic bone agent in clinical medicine. This guide covers what teriparatide does, how it works at the receptor level, its approved and investigational uses, dosing context, safety profile, and how it compares to related bone-active agents.

Teriparatide 28 min read

Tesamorelin Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Tesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH), a 44-amino acid peptide that stimulates the anterior pituitary gland to release growth hormone in a natural, pulsatile pattern. It is the only FDA-approved GHRH analogue, sold under the brand name EGRIFTA and approved for reducing excess abdominal fat in people living with HIV who have developed lipodystrophy. This guide covers what tesamorelin does, how it works mechanistically, what the clinical trial data shows, dosing context, safety profile, regulatory status, and how it compares to other GH-axis peptides.

Tesamorelin 26 min read

Tesamorelin + Ipamorelin Peptide Blend: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

The tesamorelin+ipamorelin peptide blend combines two distinct growth hormone-stimulating compounds - a GHRH analogue (tesamorelin) with FDA approval for visceral fat reduction in HIV-associated lipodystrophy, and a selective ghrelin mimetic (ipamorelin) - that act on separate pituitary receptor systems to produce synergistic, pulsatile GH release substantially greater than either compound can achieve alone. It is most commonly used for body composition optimization, visceral fat reduction, anti-aging support, sleep quality enhancement, and exercise recovery. This guide covers how each compound in the tesamorelin+ipamorelin peptide blend works and why the combination produces synergistic effects, what results people report and over what timelines, how the combination is administered, broad dosing context, safety considerations including glucose monitoring requirements, its regulatory status (WADA-prohibited; tesamorelin FDA-approved for one indication), and how it compares to alternative GH secretagogue combinations including sermorelin+ipamorelin and CJC-1295+ipamorelin.

Tesamorelinipamorelin 30 min read

TB-500 Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

TB-500 is a synthetic heptapeptide fragment derived from the actin-binding domain of thymosin beta-4, a naturally occurring protein found throughout human tissue. It is most commonly researched for its effects on systemic tissue repair, angiogenesis, and anti-inflammation, working primarily by regulating actin dynamics inside cells, which governs how repair cells move and organize at injury sites. This guide covers what TB-500 does, how it works at the molecular level, what the preclinical and extrapolated human research shows, broad dosing context, its safety profile, and its current regulatory and sports status.

Tb 500 28 min read

SS-31 Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

SS-31 (elamipretide) is a synthetic four-amino-acid peptide engineered to concentrate at the inner mitochondrial membrane, where it stabilizes cardiolipin and the protein complexes responsible for producing ATP. It is the most clinically advanced mitochondria-targeted peptide in the research landscape, having received FDA accelerated approval in September 2025 under the brand name Forzinity as the first approved treatment for Barth syndrome and the first FDA-approved mitochondria-targeted therapeutic. This guide covers what the SS-31 peptide does, how it works at the molecular level, what the clinical trial evidence shows, dosing context from published research, its safety profile, and its current regulatory status across applications.

Ss 31 29 min read

Snap-8 Peptide: The Complete Guide - Uses, Mechanism, Dosing, Safety & Research

Snap-8 (Acetyl Octapeptide-3) is a synthetic 8-amino-acid cosmetic peptide designed to reduce the appearance of dynamic expression lines by partially mimicking SNAP-25, a protein essential to the nerve-to-muscle signaling machinery. It competitively inhibits the SNARE complex - the protein assembly that enables muscle contractions - producing reversible, partial facial muscle relaxation without injection or medical supervision. This guide covers how Snap-8 works, what the clinical and mechanistic research shows, how it compares to Argireline and botulinum toxin, dosing and formulation context, safety considerations, and its regulatory status.

Snap 8 29 min read