ReViaWell →
Library → Full Access
Every compound. Every term.
All plain English.
Compounds explained simply. Terms people are afraid to ask. Industry context nobody else will give you straight. Search anything, click to expand, find a verified source. This is the resource.
No results found
Try a different search term or browse by category below.
The most studied compounds for tissue repair, injury recovery, and inflammation research. These are the peptides the fitness and biohacking communities have been researching longest.
What it is — simply
A chain of 15 amino acids found naturally in stomach acid. Think of it as a repair signal your gut already produces. Researchers study the synthetic version to understand how that repair signal works and what happens when you increase it.
What researchers study it for
Tendon and ligament repair. Gut lining integrity. Reducing inflammation after injury. Tissue healing in general. It's one of the most studied recovery compounds in current preclinical literature — hundreds of published studies.
What the research shows
Animal studies have shown accelerated tendon-to-bone healing, reduced inflammation markers, and improved gut barrier function. No large human clinical trials yet — which is why it remains a research-use compound.
Commonly stacked with
TB-500. They're studied together because BPC-157 targets local repair while TB-500 works systemically. Together they cover both bases — the most researched recovery combination in the space.
Tendon RepairGI ResearchRecoveryAnti-Inflammatory
What it is — simply
A piece of a larger protein your body already makes called Thymosin Beta-4. Researchers isolated this specific fragment because it appears to be the most active part for repair and recovery. Think of it as a mobilization signal — it tells cells to move toward damaged tissue.
What researchers study it for
Cellular migration to injury sites. Systemic tissue recovery. Cardiac repair models. Reducing chronic inflammation. Its reach is broader than BPC-157 — it works body-wide rather than locally.
What the research shows
Animal studies have shown improved wound closure, cardiac tissue recovery after injury, and reduced inflammation. The systemic vs. localized distinction from BPC-157 is why researchers frequently study them together.
Systemic RecoveryCellular MigrationCardiac ResearchInflammation
What it is — simply
A newer synthetic peptide that shares structural similarities with BPC-157 but uses arginine — an amino acid known for its role in blood flow and repair — in its sequence. It emerged partly in response to regulatory scrutiny of BPC-157.
What researchers study it for
Similar to BPC-157: tissue repair, gut health, tendon and ligament healing. Early research suggests it may have enhanced bioavailability and a slightly different stability profile.
Why it matters now
As the regulatory environment around BPC-157 has shifted, PDA has become a closely watched alternative. It's newer, has less published research, but is gaining significant interest in research communities.
RecoveryEmergingBPC-157 Alternative
View Catalog →
Research use only.
Every compound here is available verified at ReViaLife.
Third-party CoA on every batch. cGMP US manufacturing. Same standard documented in this library.
View Full Catalog →
Peptides studied for aging, skin biology, collagen, and longevity research. The fastest-growing category — driven by the intersection of fitness culture, beauty, and longevity science.
What it is — simply
A tiny three-amino-acid peptide that naturally occurs in human plasma, urine, and saliva. It carries copper — an essential mineral — into cells. Levels decline significantly with age, which is why researchers study it in the context of aging and skin biology.
What researchers study it for
Collagen and elastin synthesis stimulation. Wound healing and skin remodeling. Anti-inflammatory activity. Antioxidant signaling. It has one of the largest bodies of published cosmetic and longevity research of any peptide.
What the research shows
Studies have demonstrated GHK-Cu's ability to stimulate collagen production, accelerate wound closure, and activate genes associated with tissue repair. It's used in some high-end cosmetic products — though research-grade concentrations differ significantly from cosmetic formulations.
CollagenSkin BiologyLongevityWound Healing
What it is — simply
A four-amino-acid synthetic peptide developed in Russia from pineal gland research. Telomeres are the protective caps on the ends of your chromosomes — they shorten as you age. Epithalon is studied for its potential to activate telomerase, the enzyme that rebuilds them.
What researchers study it for
Telomere preservation and lengthening. Lifespan extension in animal models. Immune function. Antioxidant activity. It's one of the most studied pure longevity compounds.
What the research shows
Animal studies have shown extended lifespan, telomere lengthening, and improved immune markers. Most published research comes from Russian institutes — a respected but sometimes under-cited body of work in Western literature.
Telomere ResearchLongevityAging Biology
View Catalog →
Research use only.
Ready to source any of these?
Every compound above is available at ReViaLife with a published third-party CoA for every batch.
View Verified Catalog →
Every word people nod along to without actually knowing what it means. No judgment — these terms get thrown around constantly in this space and nobody explains them. Until now.
What it is — simply
GLP-1 is a hormone your gut releases naturally after you eat. Its job is to tell your brain "I'm full" and tell your pancreas "manage this blood sugar." It's been in your body your whole life — you've just never heard it called by name until Ozempic made it famous.
Why everyone is talking about it
Because semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound) are synthetic versions that mimic this hormone and make it last much longer than your body's natural version. The research findings have been dramatic enough that GLP-1 became a household term almost overnight.
GLP-1 agonist — what that means
"Agonist" means it activates a receptor. A GLP-1 agonist is a compound that activates the GLP-1 receptor — the same one your natural GLP-1 hormone activates — producing the same effects but for much longer.
HormoneMetabolicFoundational Term
What it is — simply
Think of it as a three-step communication chain: your hypothalamus (brain) sends a signal, your pituitary gland receives it and releases growth hormone, and that GH then travels through your body doing its work. The "axis" is just the name for that communication system. Like a chain of command.
Why peptides target it
Instead of injecting synthetic growth hormone directly (which bypasses the natural system), certain peptides like CJC-1295 and Ipamorelin interact with the axis at different points — prompting your own system to produce and release GH more effectively. Researchers study this as a more targeted approach.
Why it matters
Growth hormone affects body composition, recovery, sleep quality, and metabolism. Understanding how the axis works helps you understand why GH-adjacent peptides are among the most studied in performance and longevity research.
Foundational TermPerformanceHormones
What it means — simply
Under the skin. "Sub" means under, "cutaneous" refers to skin. A subcutaneous injection goes into the layer of fat just below the skin — not into a muscle (that's intramuscular) and not into a vein (that's intravenous). It's the same method used for insulin injections.
Why most peptides use this method
Peptides are proteins — if you swallowed them, your digestive system would break them down before they could do anything. Subcutaneous injection gets them into the bloodstream without going through the gut. The layer of fat under the skin absorbs them slowly, which is often desirable for research purposes.
In research context
Almost every peptide administration protocol in research literature uses subcutaneous delivery. When you see "SubQ" in research documentation, this is what it means.
AdministrationFoundational Term
What it means — simply
cGMP is the FDA's rulebook for manufacturing quality. It covers everything — cleanliness of facilities, how ingredients are tested, how batches are tracked, how contamination is prevented, and how records are kept. "Current" just means it's the up-to-date version of these rules, not an older standard.
Why it matters for peptides
Any manufacturer can claim their product is pure. A cGMP-certified facility has been inspected and certified to follow a rigorous standard. It's the difference between a supplier with accountability and one without. When you see "cGMP manufactured" — it means the facility making the compound follows pharmaceutical-grade production rules.
What to ask
Don't just ask if a supplier is "cGMP." Ask which facility manufactures their compounds and whether that facility is FDA-registered and cGMP-certified. A legitimate supplier can answer this directly.
Quality StandardSourcingFoundational Term
What it is — simply
Endotoxins are toxic substances released from the outer wall of certain bacteria. Even dead bacteria leave these behind. In manufacturing, endotoxin contamination is a serious quality issue — and it's one that purity testing alone won't catch. A compound can be 99% pure and still be dangerously contaminated with endotoxins.
Why it matters for sourcing
Many low-quality suppliers only test for chemical purity (HPLC). A legitimate supplier tests for endotoxins separately using LAL testing (Limulus Amebocyte Lysate). If a supplier's CoA doesn't show endotoxin testing — that's a red flag.
What to look for on a CoA
A legitimate CoA should show endotoxin levels in EU/mg (Endotoxin Units per milligram). For research compounds, acceptable limits follow USP guidelines. ReViaLife tests every batch for endotoxins — results are on every published CoA.
SafetyQuality TestingCoA
What it is — simply
Amino acids are the individual building blocks that make up proteins and peptides. Think of them like LEGO pieces — each one has a specific shape and function, and when you connect them in different sequences you get different structures that do different things. Your body uses 20 different amino acids to build everything from muscle tissue to enzymes to hormones.
How they relate to peptides
A peptide is simply a short chain of amino acids — usually 2 to 50 linked together. A protein is a longer chain. BPC-157 is a chain of 15 amino acids. GHK-Cu is just 3. The sequence — which amino acids, in what order — determines what the peptide does.
Essential vs. non-essential
Essential amino acids are ones your body can't make — you have to get them from food. Non-essential ones your body can produce itself. This distinction matters less for peptide research specifically, but you'll see it referenced when reading about compound structures.
Foundational TermBiochemistry Basics
What it means — simply
Freeze-dried. Lyophilization is a process where water is removed from a compound under vacuum while it's frozen. The result is a dry powder that's far more stable than a liquid solution. It's the same process used to make astronaut food and instant coffee — just applied to peptides at a pharmaceutical level.
Why it matters
Peptides in solution (liquid form) degrade relatively quickly — days to weeks even when refrigerated. Lyophilized peptides can remain stable for 24 months or longer when stored properly. This is why research-grade peptides come as powder in a sealed vial — the lyophilization is doing the preservation work.
Reconstitution
Before use in a research setting, lyophilized peptides are "reconstituted" — meaning liquid is added to dissolve the powder back into solution. Bacteriostatic water is typically used because it contains a small amount of benzyl alcohol that prevents bacterial growth in the reconstituted solution.
StorageStabilityFoundational Term
What it is — simply
Section 503(b) of the Federal Food, Drug, and Cosmetic Act created a category called "outsourcing facilities" — basically compounding pharmacies that operate at a larger, more regulated scale. A 503(b) facility is FDA-registered, follows cGMP standards, and can produce compounded medications without patient-specific prescriptions.
Why it matters in peptide discussions
503(b) facilities have been able to legally compound certain peptides — including semaglutide and BPC-157 at various points — under specific FDA guidance. As regulations have shifted, the 503(b) designation has become important in discussions about the legal landscape of peptide access.
Research compounds vs. 503(b)
Research-use compounds from suppliers like ReViaLife are distinct from 503(b) compounded products. They operate under different regulatory frameworks. Understanding the distinction is important for anyone navigating the peptide space seriously.
RegulatoryLegal ContextFDA
What it means — simply
The time it takes for half of a compound to be eliminated from the body. If a peptide has a 2-hour half-life, after 2 hours roughly half of it is gone. After 4 hours, roughly three-quarters is gone. After 6 hours, almost all of it. It's how researchers measure how long something stays active.
Why it matters in research
Half-life determines how frequently something needs to be administered in research protocols to maintain consistent levels. Short half-life = more frequent administration. This is why CJC-1295 with DAC (which has a half-life of days) is studied differently than Modified GRF 1-29 (half-life of minutes).
Real example
Natural GLP-1 has a half-life of about 2 minutes — it's eliminated almost immediately. Semaglutide's half-life is about 7 days — which is why it became such a significant research compound. That extended duration is engineered into the molecule.
PharmacokineticsFoundational Term
What it is — simply
Glucose is a simple sugar — the main fuel source your cells run on. When you eat carbohydrates, they're broken down into glucose that enters your bloodstream. "Blood sugar" and "blood glucose" mean the same thing.
Why it appears constantly in peptide research
GLP-1 agonists like semaglutide and tirzepatide were originally studied in the context of type 2 diabetes — a condition of impaired glucose regulation. The metabolic effects that made them interesting for diabetes research are the same mechanisms researchers study for body composition and metabolic health more broadly.
Insulin's role
Insulin is the hormone that moves glucose from your bloodstream into your cells. GLP-1 agonists stimulate insulin release when blood glucose is elevated — which is part of why their metabolic research findings have been so significant.
Foundational TermMetabolicBiology Basics
What it means — simply
Metabolism is every chemical process your body runs to stay alive — converting food to energy, building and breaking down proteins, regulating hormones, managing blood sugar. "Metabolic" just means "related to metabolism." When a peptide is described as metabolic, it affects one or more of these processes.
What metabolic research actually studies
In the peptide context, metabolic research usually focuses on: how the body processes and stores fat, how blood sugar is regulated, how appetite signals work, and how energy expenditure is controlled. GLP-1 agonists are "metabolic compounds" because they directly affect all four of these.
Metabolic health vs. metabolic disease
Metabolic health refers to how well these systems are working. Metabolic disease (like type 2 diabetes or metabolic syndrome) is when they break down. Peptide research in this category often examines whether compounds can support or restore healthy metabolic function.
Foundational TermBiology Basics
What it is — simply
A Certificate of Analysis is a lab report from a third-party testing laboratory that confirms what's actually in a compound — its identity, purity level, and what contaminants were tested for. It's the only independent proof that what a supplier is selling is what they claim it is.
What a legitimate CoA shows
The specific compound name and batch number. HPLC purity percentage (should be above 98%). LC-MS mass spectrometry confirmation of identity. Endotoxin testing results. The name of the independent laboratory that conducted the testing. Date of analysis.
Red flags on a CoA
Testing done by the supplier's own lab (not independent). No batch number. Missing endotoxin testing. Purity shown as a range rather than a specific percentage. Lab name that can't be independently verified. Generic CoA used for multiple batches.
ReViaLife's CoAs
Every batch sold at ReViaLife has a published CoA from an independent third-party laboratory. Batch-specific. Includes all of the above. Verifiable.
SourcingQuality TestingFoundational Term
What it means — simply
An International Unit (IU) is a standardized measurement used for biological substances — particularly hormones and vitamins — where "potency" or "activity" matters more than just weight. It's an internationally agreed-upon amount that produces a specific effect, not a fixed weight measurement.
How it differs from micrograms
Micrograms (mcg) measure weight. IUs measure biological activity. For some compounds these are interchangeable with a known conversion — for others they're not. Most peptides in research are measured in micrograms or milligrams, not IUs. You'll mainly see IUs referenced in the context of HGH or insulin.
In research context
When research protocols list amounts in units, they're typically specifying the biological activity of what's being studied. Research vials often list both the weight (mg) and a unit equivalent. Your CoA will show the weight — the unit conversion is then applied based on the compound's known potency.
MeasurementResearch ProtocolFoundational Term
The regulatory landscape, key figures, and industry context that shapes everything in this space — explained neutrally and factually. No agenda. Just the information you need to understand the environment you're operating in.
What the gray market is — simply
A gray market exists in the space between clearly legal and clearly illegal. Research compounds aren't illegal to sell or possess — they're sold under "research use only" designations that place them outside FDA's pharmaceutical approval framework. They're not black market drugs. They're also not FDA-approved medications. They occupy a legally recognized but ambiguous middle ground.
Why it exists
FDA drug approval takes 10–15 years and costs over $1 billion per compound. Most peptides being researched haven't gone through that process — not because they've failed, but because no pharmaceutical company has funded the full approval pathway. Research compounds allow the science to proceed and be studied while that process plays out.
The risk in the gray market
Because it's less regulated than pharmaceutical channels, quality varies enormously. This is exactly why sourcing standards — CoA verification, cGMP manufacturing, endotoxin testing — matter so much. The gray market isn't inherently dangerous, but operating in it without verification tools is.
Where ReViaWell stands
ReViaWell exists specifically to help people navigate the gray market intelligently. Understanding it is the first step. Knowing how to verify quality within it is the second. That's what this library is for.
RegulatoryIndustry ContextLegal Framework
Who he is — briefly
Robert F. Kennedy Jr. is an environmental attorney, author, and political figure. He served as Secretary of Health and Human Services in 2025. He is the son of Robert F. Kennedy and nephew of President John F. Kennedy. He has been an outspoken critic of pharmaceutical industry influence on regulatory agencies and a proponent of what he calls "health freedom."
His position on peptides and research compounds
RFK Jr. has publicly expressed support for access to research compounds and has been critical of FDA actions that restrict peptide availability — particularly the reclassification of BPC-157 and other compounds. His position broadly aligns with reducing pharmaceutical industry influence on FDA policy and expanding individual access to health research tools.
Why it matters to this space
His elevation to HHS Secretary in 2025 brought significant attention to the regulatory environment around peptides. Policy positions that had been fringe conversations became mainstream policy discussions. The peptide research community has watched developments closely, as regulatory shifts under his leadership could meaningfully affect the gray market landscape.
ReViaWell's position
ReViaWell presents this context factually and neutrally. We take no political position. Regulatory environments change — what doesn't change is the importance of sourcing verified, tested compounds regardless of the political climate.
Industry ContextRegulatoryPolicy
What the FDA is — simply
The Food and Drug Administration is the US federal agency responsible for approving drugs and medical devices for human use, and regulating food safety. It's one of the world's most rigorous drug approval bodies — compounds approved by the FDA have gone through extensive clinical testing for safety and efficacy.
How it relates to research compounds
Research compounds sold under "research use only" (RUO) designations exist in a space the FDA oversees but hasn't fully regulated in the same way as pharmaceuticals. The FDA has taken action against specific compounds at various times — BPC-157's status has shifted, for example — while others remain in a relatively stable RUO category.
The drug approval process — briefly
To become an FDA-approved drug, a compound goes through preclinical studies, then Phase I, II, and III clinical trials — typically taking 10–15 years and over $1 billion. Most peptides being researched haven't completed this process — not because they've failed safety testing, but because no entity has funded the full approval pathway for them.
Why this matters for sourcing
Because research compounds aren't FDA-approved, the burden of verification falls on the buyer. There is no FDA label guarantee. This is precisely why third-party CoAs, cGMP manufacturing, and independent testing standards exist — and why knowing how to evaluate them matters.
RegulatoryIndustry ContextLegal Framework
What it means
BioMaxxing is the practice of systematically researching, studying, and optimizing your own biological performance using science-backed compounds and protocols. It goes beyond general biohacking — which often includes a wide range of lifestyle and technology interventions — to focus specifically on the research compound space with verification standards and scientific rigor.
How it differs from biohacking
Biohacking is a broad term that includes everything from cold plunges to wearables to supplements. BioMaxxing specifically refers to research-compound-based optimization — using verified peptides, understanding the science behind them, and sourcing from legitimate, CoA-verified suppliers. The distinction is rigor and verification.
The ReViaWell approach to BioMaxxing
ReViaWell exists to make BioMaxxing accessible without sacrificing standards. Understanding what you're researching, verifying what you're sourcing, and knowing the difference between legitimate research and marketing noise — that's the foundation of doing this right.
ReViaWell OriginalBiohackingOptimization
What it means — simply
Research Use Only means the compound has not been approved by the FDA for human therapeutic use. It's intended for laboratory research, in-vitro studies, or animal research. It is not a pharmaceutical product. It cannot legally be marketed for human consumption, treatment of disease, or therapeutic application.
What it doesn't mean
It doesn't mean the compound is dangerous, ineffective, or illegal to possess. Many RUO compounds have extensive published safety and efficacy data in preclinical models. The RUO designation reflects their regulatory status — not a judgment about their properties.
Why every legitimate supplier uses this language
Because it's the legally accurate description. Any supplier that claims their peptides are for human use, or implies therapeutic benefits, is either violating FDA guidelines or selling an approved pharmaceutical without authorization. The RUO label is what keeps legitimate research compound suppliers operating within the law.
RegulatoryLegal FrameworkFoundational Term
You now know more than 95% of people in this space.
When you're ready to source — ReViaLife meets every standard documented in this library.
View the Verified Catalog →