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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

Matrixyl 3000 Complex: Complete Guide to Peptide Benefits, Mechanisms, and Clinical Applications

Matrixyl 3000 Complex is a dual-peptide cosmetic ingredient consisting of palmitoyl tripeptide-1 and palmitoyl tetrapeptide-7, developed by Sederma and applied topically for skin aging. The complex mimics natural collagen breakdown fragments, triggering dermal fibroblasts to produce more collagen and other structural proteins while simultaneously reducing chronic skin inflammation. This guide covers what Matrixyl 3000 Complex does, how each component works, what the clinical evidence shows, how to use it, and how it compares to retinol and other anti-aging alternatives.

Matrixyl 3000 Complex 28 min read

SLU-PP-332 and BAM15: The Complete Guide to These Research Compounds

SLU-PP-332 and BAM15 are two small-molecule research chemicals, not peptides, that are commonly discussed together in metabolic health and biohacking contexts. SLU-PP-332 is a synthetic ERRalpha agonist that activates exercise-responsive metabolic gene programs, while BAM15 is a mitochondrial uncoupling agent that increases energy expenditure by dissipating the proton gradient across the inner mitochondrial membrane. This guide covers what these compounds do, what the preclinical research actually shows, dosing context from anecdotal sources, safety considerations, regulatory status, and how they compare to related research chemicals in the metabolic health space.

Slu Pp 332 Bam15 26 min read

Dihexa: Cognitive Enhancement and Neuroprotective Potential

Dihexa (also known as PNB-0408) is a synthetic peptidomimetic compound derived from angiotensin IV, developed at Washington State University for its potential to promote synaptogenesis - the formation of new synaptic connections in the brain - through potentiation of the HGF/c-Met receptor signaling pathway. It is investigated as a potential cognitive enhancer and neuroprotective agent in preclinical research, with consistent findings across multiple animal models of cognitive impairment. This guide covers what dihexa is, what the preclinical evidence shows, how it is used in practice, what the theoretical safety concerns are, and its current regulatory status - including the significant gap between animal research and any human clinical validation.

Dihexa 26 min read

Tesofensine: The Complete Guide to This Triple Monoamine Reuptake Inhibitor

Tesofensine is a synthetic small-molecule triple monoamine reuptake inhibitor - not a peptide - that simultaneously increases dopamine, norepinephrine, and serotonin availability in the brain. It is most studied as a weight loss agent, with Phase II clinical trial data showing approximately 9.2% body weight reduction at 0.5 mg daily over 24 weeks, driven primarily by appetite suppression and increased satiety. This guide covers what tesofensine does, how it works mechanistically, what the clinical research shows, dosing ranges studied, its safety profile, and how it compares to approved alternatives.

Tesofensine 24 min read

MK-677 Ibutamoren: The Complete Guide to Benefits, Dosage, and Research

MK-677, also called ibutamoren, is a synthetic orally active small molecule that mimics the hunger hormone ghrelin to stimulate the body's own pulsatile release of growth hormone and downstream IGF-1. It is not a peptide - it has no amino acid sequence - despite frequently being grouped with peptide-based secretagogues. This guide covers what MK-677 does, how it works at the receptor level, what the human clinical trial record actually shows, dosing ranges used in research, its side effect and safety profile including the cardiovascular findings, and its current regulatory and anti-doping status.

Mk 677 Ibutamoren 28 min read

SLU-PP-332: The Complete Guide to the Pan-ERR Agonist Exercise Mimetic

SLU-PP-332 is a synthetic small molecule developed at Saint Louis University and the University of Florida that activates all three estrogen-related receptor (ERR) isoforms, earning its classification as a pan-ERR agonist and exercise mimetic. Preclinical research in mouse models has documented striking effects on fat oxidation, endurance capacity, and cardiac function, though no human clinical trial data exists as of July 2026. This guide covers what the research actually shows, how the compound works, what the community currently does with it, and where the significant evidence gaps remain.

Slu Pp 332 28 min read

Nonapeptide-1: The Complete Guide to Melanostatin-5

Nonapeptide-1 is a synthetic nine-amino-acid peptide that functions as a selective antagonist at the melanocortin-1 receptor (MC1R), the receptor on melanocytes that receives the signal to produce skin pigment. By blocking this receptor, it interrupts the signaling cascade that drives melanin synthesis - making it a mechanistically distinct approach to managing hyperpigmentation, dark spots, and uneven skin tone. This guide covers what Nonapeptide-1 does, how it works at the receptor level, what the research shows and where its evidence gaps are, how it is used in cosmetic formulations, its safety profile, and how it compares to better-established brightening ingredients.

Nonapeptide 1 25 min read

Pentapeptide-18 (Leuphasyl): The Complete Research Guide

Pentapeptide-18, sold under the trade name Leuphasyl, is a synthetic five-amino-acid cosmetic peptide designed to mimic the activity of endogenous enkephalins at the neuromuscular junction, partially reducing the muscle contraction signals that deepen expression wrinkles over time. It is used exclusively as a topical ingredient in serums and eye creams and is best supported by data as a combination ingredient alongside Argireline, where a 28-day manufacturer application study documented roughly double the wrinkle reduction compared to either peptide alone. This guide covers what Pentapeptide-18 does, how it works, the clinical evidence behind it, application protocols, safety considerations, combination use, and its regulatory status.

Pentapeptide 18 Leuphasyl 25 min read

Syn-AKE Peptide: Benefits, Mechanism, and Research Applications

Syn-AKE is a synthetic biomimetic tripeptide developed to replicate the neuromuscular-blocking activity of Waglerin-1, a compound found in Temple Viper venom, in a form that is safe, topically deliverable, and fully reversible in its effects. It works primarily by blocking the muscular nicotinic acetylcholine receptor at the neuromuscular junction, reducing the frequency of facial muscle contractions and gradually softening dynamic expression lines. This guide covers how the Syn-AKE peptide works, what the published research shows, how it compares to alternatives like Argireline and botulinum toxin, and what to expect from topical use.

Syn Ake 27 min read

Pal-GHK Peptide: Research, Benefits, and Clinical Applications

Pal-GHK, also known as Palmitoyl Tripeptide-1, is a synthetic lipopeptide created by attaching a 16-carbon palmitic acid chain to the naturally occurring GHK tripeptide, a glycine-histidine-lysine sequence released from collagen during tissue breakdown. The palmitoyl modification was engineered specifically to solve GHK's main limitation as a topical compound: poor penetration of the stratum corneum, the outermost lipid barrier of the skin. This guide covers what Pal-GHK is, how it works, what controlled research shows about its effects on wrinkle reduction and collagen synthesis, dosing context for topical use, its safety profile, and its current regulatory status.

Pal Ghk Peptide 29 min read

AHK-Cu Peptide: Benefits, Research, and Clinical Applications

AHK-Cu (Copper Tripeptide-3) is a synthetic copper-binding tripeptide composed of alanine, histidine, and lysine complexed with a copper ion. It is used primarily as a topical active ingredient in scalp and skin formulations. Its published research is concentrated on hair follicle biology, specifically promoting follicle cell survival, stimulating blood vessel formation around follicles, and supporting dermal collagen production. This guide covers what AHK-Cu does, how it works, what the research actually shows, how it compares to GHK-Cu and other alternatives, and what to know about topical protocols and safety.

Ahk Cu 26 min read

Syn-Coll Peptide: Comprehensive Research Guide to Collagen Synthesis and Skin Health

Syn-Coll is the trade name for Palmitoyl Tripeptide-5, a synthetic lipopeptide developed by DSM-Firmenich as a cosmeceutical ingredient for topical skincare formulations. It works through a dual mechanism: activating TGF-beta collagen synthesis signaling in dermal fibroblasts while simultaneously suppressing the enzymes that break collagen down. It has human volunteer data showing objective wrinkle reduction and skin firmness improvements over 84 days of twice-daily use. This guide covers its mechanism of action, what the clinical evidence actually shows, how concentrations are used in research, its safety profile, and how it compares to other collagen-targeting cosmetic actives.

Syn Coll Peptide 25 min read

Acetyl Hexapeptide-3 (Argireline): Comprehensive Guide to Benefits, Mechanisms, and Research

Acetyl Hexapeptide-3 Argireline - widely recognized by its trade name Argireline and now officially designated Acetyl Hexapeptide-8 in INCI nomenclature - is a synthetic six-amino-acid peptide used in topical skincare formulations to reduce the appearance of dynamic expression wrinkles. It works by partially disrupting the SNARE protein complex at facial neuromuscular junctions, reducing the force and frequency of the muscle contractions that deepen crow's-feet, forehead lines, and glabellar lines over time. This guide covers what Acetyl Hexapeptide-3 does, how it works, what the clinical evidence shows, how to interpret dosing and concentration data, its safety profile, and how it compares to botulinum toxin and other anti-aging approaches.

Acetyl Hexapeptide 3 Argireline 23 min read

Cortagen Peptide: The Complete Guide to Cortagen (AEDP)

Cortagen (AEDP) is a synthetic tetrapeptide composed of four amino acids (Alanine, Glutamic acid, Aspartic acid, and Proline), originally derived from cerebral cortex protein analysis by Professor Vladimir Khavinson's research group in Russia during the 1990s. It is proposed to work through an epigenetic mechanism, entering cell nuclei and influencing chromatin structure to reactivate genes that become silenced during cellular aging, with preclinical research documenting effects on peripheral nerve regeneration, gene expression in cardiac tissue, and immune cell activity. This guide covers what Cortagen is, what the preclinical research shows, how it is used in research protocols, its safety profile, regulatory status, and how it compares to related compounds.

Cortagen Peptide Research Guide 27 min read

VIP Peptide: The Complete Guide to Vasoactive Intestinal Peptide

VIP (Vasoactive Intestinal Peptide) is a naturally occurring 28-amino acid neuropeptide produced throughout the human body - in the gut, nervous system, and immune cells - that regulates inflammation, blood vessel tone, airway function, and immune cell behavior. Its synthetic pharmaceutical form, aviptadil, has been studied in clinical trials for respiratory conditions, autoimmune disease, and COVID-19. This guide covers what VIP does, how it works at a molecular level, what the clinical research shows, documented dosing protocols, safety considerations, and its current regulatory status.

Vip Peptide 28 min read