PepGuide: The Complete Peptide Research Resource for Dosing, Profiles, and Protocols

Peptide research has grown from a niche corner of biochemistry into one of the most actively discussed topics among biohackers, health optimizers, and independent researchers worldwide. Yet the information landscape remains fragmented, inconsistent, and often dangerously unreliable. PepGuide (pepguide.xyz) was built to change that. As a centralized, evidence-based peptide research resource, PepGuide brings together compound profiles, dosing protocols, administration guides, safety documentation, and community-validated research data in one rigorously organized platform. Whether you are investigating tissue repair peptides like BPC-157, exploring growth hormone secretagogue pathways through Ipamorelin and CJC-1295, or learning the fundamentals of reconstituting lyophilized powder with bacteriostatic water, PepGuide provides the structured, science-backed foundation every serious researcher needs.

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What Is PepGuide and Why Does It Exist?

PepGuide is a dedicated peptide research resource hosted at pepguide.xyz. It was created to address a persistent problem in the peptide research community: high-quality, referenced, and accessible information is extraordinarily difficult to find in one place. Forums scatter useful data across thousands of threads. Social media discussions mix anecdote with science without distinguishing between the two. Commercial vendor websites carry obvious conflicts of interest. Academic literature, while authoritative, is often locked behind paywalls and written in technical language that excludes non-specialists.

PepGuide fills the space between raw academic literature and informal community discussion. The platform is structured around the same principles that make resources like Examine.com valuable in the supplement research world: every claim is grounded in evidence, sources are cited transparently, and dosing information is presented with appropriate context rather than as prescriptive medical advice. The PepGuide Research Team continuously reviews emerging studies, community research documentation, and peer-reviewed pharmacology literature to keep compound profiles current and accurate.

The platform serves a broad but specific audience. This includes independent researchers conducting preclinical investigations, biohackers engaged in rigorous self-experimentation with thorough documentation, health optimizers seeking to understand the mechanistic basis of compounds they are exploring, and practitioners looking for well-organized reference material on peptide pharmacokinetics, receptor binding mechanisms, and hormonal axis interactions. PepGuide does not serve as a medical provider and does not offer clinical advice. It serves as a research documentation and education platform.

How PepGuide Vets and Sources Its Information

The credibility of any research resource depends entirely on how it handles sourcing and editorial standards. PepGuide applies a multi-layer vetting process to every piece of dosing protocol and compound profile content published on the platform.

Primary sources take precedence. Where peer-reviewed studies exist in databases such as PubMed, they are cited directly. The PepGuide Research Team cross-references findings across multiple studies before presenting any dosing or safety information, avoiding the common mistake of elevating a single preliminary study as definitive evidence. This approach mirrors the methodology used by evidence-based research platforms and distinguishes PepGuide from forums or vendor blogs that rely primarily on anecdote.

Secondary sources include respected community figures whose documentation practices meet a minimum standard of rigor. Researchers like Derek from More Plates More Dates have contributed meaningfully to public understanding of peptide research through detailed video breakdowns and written analyses that cite primary literature. PepGuide acknowledges this community-driven research documentation as a legitimate supplementary layer, while clearly distinguishing it from peer-reviewed evidence.

When evidence is limited or preliminary, PepGuide says so explicitly. Uncertainty is communicated clearly. A compound with only rodent model data is presented differently from one with multiple human pharmacokinetic studies. This intellectual honesty is central to the PepGuide editorial philosophy and is what makes the platform a trustworthy peptide research reference rather than a promotional tool.

Core Compound Profiles on PepGuide

PepGuide maintains detailed profiles for a wide range of research compounds. The following sections cover the most frequently researched peptides documented on the platform, organized by their primary research categories.

BPC-157: Tissue Repair and Recovery Research

BPC-157, or Body Protection Compound 157, is among the most extensively discussed peptides in the tissue repair and recovery research space. It is a synthetic pentadecapeptide derived from a protein found in gastric juice, and it has demonstrated a notable range of biological activity in preclinical models.

Research on BPC-157 has explored its effects on tendon, ligament, muscle, and gut tissue. Studies conducted in rodent models have shown accelerated healing of Achilles tendon injuries, improved recovery from muscle tears, and significant gastroprotective effects. The compound appears to interact with the nitric oxide system and influence growth factor expression, particularly VEGF (vascular endothelial growth factor), which plays a central role in angiogenesis and tissue regeneration.

On PepGuide, the BPC-157 compound profile includes a breakdown of research dosing ranges, commonly observed administration protocols in the literature, a summary of the available preclinical evidence, and a clear notation that human clinical trial data remains limited. The platform documents both subcutaneous and intramuscular administration approaches as they appear in research contexts, as well as oral research protocols that have been explored given the peptide's gastric origin.

TB-500: Thymosin Beta-4 Fragment in Recovery Research

TB-500 is a synthetic fragment of Thymosin Beta-4, a naturally occurring peptide present in virtually all human and animal cells. It is frequently co-researched alongside BPC-157 due to the complementary nature of their proposed mechanisms in tissue repair research.

Thymosin Beta-4 has been studied for its role in actin regulation, cell migration, and inflammatory modulation. TB-500 as a research compound is believed to promote these same processes. Research has explored its potential applications in wound healing, cardiac tissue repair, and neurological recovery contexts. The compound has a relatively favorable solubility profile and demonstrates systemic distribution following subcutaneous injection, which is one reason it is frequently paired with more locally acting compounds like BPC-157 in research stacking protocols.

PepGuide documents the TB-500 and BPC-157 research stack as one of the most commonly explored synergistic combinations in the tissue repair category, noting the theoretical mechanistic complementarity while being transparent about the absence of formal clinical trial data supporting combined use.

Sermorelin, Ipamorelin, and CJC-1295: The Growth Hormone Secretagogue Pathway

A significant portion of PepGuide's research documentation covers the growth hormone secretagogue pathway. This area attracts substantial research interest due to the role of growth hormone and downstream IGF-1 in body composition, recovery, sleep quality, and metabolic function.

Sermorelin is a GHRH analogue, meaning it mimics Growth Hormone Releasing Hormone and stimulates the pituitary gland to produce and secrete growth hormone through a physiologically normal mechanism. Because it works upstream through the natural GHRH pathway, it is considered to have a relatively favorable hormonal axis interaction profile compared to exogenous growth hormone administration. Sermorelin has the longest clinical research history of the GHRH analogues, with studies dating back several decades.

Ipamorelin is a selective growth hormone secretagogue and a member of the GHRP (growth hormone releasing peptide) class. It stimulates growth hormone release through ghrelin receptor activation rather than the GHRH pathway, making it mechanistically distinct from Sermorelin. Ipamorelin is frequently noted in research literature for its high selectivity, with minimal observed effect on cortisol or prolactin at research doses, which distinguishes it from earlier generation GHRPs.

CJC-1295 is a GHRH analogue that includes a Drug Affinity Complex (DAC) modification in its most common research form, which dramatically extends its half-life compared to native GHRH or Sermorelin. This extended half-life changes the pharmacokinetic profile significantly, allowing for less frequent administration in research protocols while maintaining elevated growth hormone pulse amplitude over a longer window.

The Ipamorelin and CJC-1295 stack is one of the most documented growth hormone secretagogue combinations in the PepGuide peptide research database. The scientific rationale is straightforward: CJC-1295 elevates the baseline growth hormone release potential through the GHRH pathway, while Ipamorelin triggers acute growth hormone pulses through a complementary ghrelin receptor mechanism. Used together, they are theorized to produce a more robust and synergistic growth hormone response than either compound alone. PepGuide documents this stack with reference to the relevant pharmacology and notes the importance of timing administration to coincide with natural growth hormone pulse windows, typically before sleep or fasted training.

Epithalon: Telomere Research and Longevity Pathways

Epithalon is a synthetic tetrapeptide derived from Epithalamin, a polypeptide extract of the pineal gland. It has attracted significant interest in longevity research circles due to its proposed interaction with telomerase activity. Preclinical research, primarily from Russian investigator Vladimir Khavinson and colleagues, has documented associations between Epithalon administration and normalized telomere length in cell culture and animal models.

PepGuide presents the Epithalon compound profile with appropriate caveats. The research base, while substantial in volume relative to many peptides, is concentrated among a narrow set of research groups and relies heavily on non-human models. The platform documents the proposed mechanisms around telomerase activation, melatonin normalization, and antioxidant pathway modulation while clearly noting that independent replication in large-scale human trials has not yet occurred.

Selank and Semax: Nootropic and Anxiolytic Research Peptides

Selank and Semax represent a distinct research category within the PepGuide compound library: peptides with proposed nootropic and anxiolytic mechanisms. Both compounds were developed by the Institute of Molecular Genetics of the Russian Academy of Sciences and have undergone more formal clinical evaluation than many peptides commonly discussed in Western research communities.

Selank is a synthetic analogue of the immunomodulatory peptide tuftsin. Research has explored its anxiolytic properties, proposed GABA system interactions, and potential effects on BDNF expression. Semax, derived from the ACTH (adrenocorticotropic hormone) fragment, has been studied for cognitive enhancement, neuroprotective properties, and stroke recovery applications. Both are typically administered intranasally in research settings, which distinguishes their delivery methodology from the predominantly subcutaneous or intramuscular administration routes associated with most other peptides on the PepGuide platform.

Peptide Reconstitution: A Step-by-Step Research Protocol

One of the most practically important sections of the PepGuide platform covers peptide reconstitution. Most research peptides are supplied as lyophilized (freeze-dried) powder, and proper reconstitution is essential for maintaining compound stability, ensuring accurate dosing, and avoiding contamination that could compromise research integrity or introduce safety risks.

The standard reconstitution process documented on PepGuide follows a consistent methodology applicable to the majority of lyophilized peptide compounds:

• Gather required materials. You will need the lyophilized peptide vial, bacteriostatic water (BAC water) as the reconstitution solvent, a 1 mL insulin syringe for drawing reconstituted solution, a larger gauge syringe for adding BAC water to the vial, and alcohol swabs for sterilizing vial tops before each puncture.
• Calculate your target concentration. Determine how many milligrams of peptide are in the vial and how many milliliters of BAC water you will add. A common research configuration for a 5 mg vial is to add 2 mL of BAC water, yielding a concentration of 2.5 mg per mL (2,500 mcg per mL). This concentration simplifies dosing math for typical research dose ranges.
• Sterilize and inject BAC water slowly. Wipe the rubber stopper of both the BAC water vial and the peptide vial with a fresh alcohol swab. Draw the calculated volume of BAC water into the syringe, then inject it slowly into the peptide vial by directing the stream down the inside glass wall rather than directly onto the peptide cake. Forceful direct injection can degrade the peptide structure.
• Allow dissolution without agitation. Once BAC water has been added, allow the vial to sit undisturbed or gently swirl it using a slow circular motion. Do not shake the vial. Most lyophilized peptides dissolve fully within one to two minutes. The resulting solution should be clear and colorless for most compounds, though slight coloration is acceptable for some.
• Store correctly. Reconstituted peptide solutions are significantly less stable than lyophilized powder. PepGuide recommends refrigerated storage at 2 to 8 degrees Celsius and documents typical usage windows for major compounds, which commonly range from two to four weeks for refrigerated reconstituted solutions. Unreconstituted lyophilized powder can typically be stored for longer periods when kept cool and away from light.

PepGuide provides compound-specific reconstitution guidance where variations from the standard protocol apply, including solubility considerations for peptides that require acetic acid addition to achieve full dissolution.

PepGuide Stacking Strategies and Research Protocol Design

Beyond individual compound profiles, PepGuide documents evidence-informed stacking strategies that researchers frequently explore when designing multi-compound protocols. Peptide stacking involves the concurrent or sequentially timed use of two or more compounds based on mechanistic complementarity, with the goal of achieving research outcomes that neither compound would produce as effectively in isolation.

PepGuide organizes its stacking documentation around several core research objectives that reflect the most common areas of investigation within the peptide research community.

Tissue Repair Stack: BPC-157 and TB-500

As previously noted, the BPC-157 and TB-500 combination is the most thoroughly documented tissue repair stack in the PepGuide database. The theoretical basis for this combination lies in their distinct but complementary mechanisms: BPC-157 is understood to exert more localized effects on the nitric oxide pathway and VEGF expression at the injury site, while TB-500's systemic distribution and actin-regulatory properties support broader inflammatory modulation and cell migration. Researchers exploring musculoskeletal injury recovery, gastrointestinal tissue repair, or post-surgical healing contexts have documented this combination extensively in community research logs.

Growth Hormone Optimization Stack: CJC-1295, Ipamorelin, and Sermorelin

The growth hormone secretagogue stacking landscape is nuanced, and PepGuide documents the reasoning behind several common configurations. The CJC-1295 with DAC paired with Ipamorelin combination represents the most commonly researched dual-pathway growth hormone stack, leveraging both GHRH receptor activation and ghrelin receptor activation simultaneously. Some researchers document a preference for CJC-1295 without DAC (also referred to as Modified GRF 1-29) paired with Ipamorelin to maintain pulsatile growth hormone release patterns more closely aligned with natural physiology, rather than the blunted pulsatility associated with the long-acting DAC form.

Sermorelin is sometimes substituted for CJC-1295 in research designs where a shorter-acting, lower-potency GHRH stimulation is preferred, or where the researcher is working within a framework that prioritizes compounds with longer clinical research histories.

Cognitive and Neuroprotective Research Stacks

Within the cognitive research category, PepGuide documents combinations that pair compounds like Semax or Selank with systemic recovery peptides. Some researchers document concurrent use of Semax with BPC-157 based on BPC-157's documented neuroprotective findings in preclinical models, particularly regarding dopaminergic system modulation and nerve healing. PepGuide notes that this combination sits at a lower evidence tier than the tissue repair or growth hormone stacks, and presents it with corresponding uncertainty disclosures.

Safety Documentation and Research Responsibility on PepGuide

No peptide research resource that operates with genuine intellectual integrity can present compound profiles and dosing information without a substantive framework for safety documentation and research responsibility. PepGuide dedicates significant platform real estate to this dimension of peptide research.

The platform documents known and theorized adverse effects for each compound profile based on available literature. For compounds where adverse effect data in humans is sparse, PepGuide extrapolates cautiously from animal model data while explicitly flagging the limitations of that extrapolation. Common documentation categories within each compound's safety section include injection site reactions, hormonal axis considerations, potential interactions with concurrent medications, contraindications based on existing conditions, and considerations specific to populations such as individuals with active malignancy, given the growth-promoting nature of some peptides.

PepGuide also maintains a clear and prominent position on the regulatory and legal status of research peptides. The legal classification of peptide compounds varies significantly across jurisdictions. In the United States, many research peptides occupy a regulatory grey area: they are not approved pharmaceutical drugs, but they are also not explicitly scheduled controlled substances in most cases. This distinction is important for researchers to understand, and PepGuide documents the relevant regulatory context without offering legal advice.

Research peptides documented on PepGuide are for research purposes only. They are not intended for human consumption in a clinical sense, and PepGuide does not endorse or facilitate any use that falls outside of legitimate research contexts.

How to Navigate the PepGuide Platform Effectively

Understanding how PepGuide is organized helps researchers extract maximum value from the platform. The site architecture is built around three primary content pillars: compound profiles, research protocols, and educational reference material.

Compound profiles are the core of the platform. Each profile follows a standardized structure that includes a compound overview, mechanism of action, pharmacokinetic data where available, research dosing documentation, administration method guidance, stacking context, safety considerations, and a curated reference list. This consistent format allows researchers to compare compounds across profiles efficiently without needing to re-orient to a new content structure for each compound.

Research protocols address specific investigative goals rather than individual compounds. A researcher exploring a sleep optimization protocol, for example, will find content that integrates relevant compound options, timing considerations, and the evidentiary basis for each component of the protocol, drawing from multiple compound profiles in a synthesized format.

Educational reference material covers foundational topics that underpin