Peptide research, clearly explained
Guides with cited sources on research peptides: what they are, how research works, how we verify purity, and what the ‘research-only’ framework entails.
Anti-Aging Peptides: The Complete Guide to Longevity Research
From GHK-Cu to Epithalon and NAD+: the complete guide to peptides studied in longevity research. Research-only, no rejuvenation claims.
Nootropic Peptides: The Guide to Cognition and Focus
From Semax to Selank: the complete guide to peptides studied in cognition and focus research. Research-only, no cognitive claims.
Peptides for Weight Loss: What Does the Research Say?
From incretin agonists to mitochondrial compounds: the complete guide to peptides studied in metabolic research. Research-only, no slimming claims.
Stacking and Combining Peptides: What Does the Research Say?
Why are peptides combined, and what is the difference between a blend and stacking separate peptides? The complete research-only guide to stacking peptides.
Peptide Side Effects: What Does the Research Say?
Do research peptides have side effects? Why that question is nuanced, and why purity and documentation are the most important safety factors. Research-only.
Semax vs Selank: The Difference Between Two Neuropeptides
Semax vs Selank: different origin, different research questions. Discover the difference between these two neuropeptides — explained clearly and research-only.
Copper Peptides for Hair: What Is in a Hair Serum?
Copper peptides such as GHK-Cu also appear in cosmetic hair serums. Discover the difference from research-grade material — explained clearly and topical.
Ipamorelin vs CJC-1295: The Difference Between GHRP and GHRH
Ipamorelin and CJC-1295 act on different receptors within the growth hormone axis. Discover the difference — explained clearly and research-only.
Peptide Serum: What Is It and Which One to Choose?
A peptide serum is a cosmetic product with skin peptides such as copper peptides or PDRN. Discover the ingredients and how to choose.
Buying Peptides: What to Look For on Purity and COA
What to look for when buying peptides? Purity, a COA per batch and independent verification. A complete buyer's guide, research-only.
Ordering Peptides: How the Order Process Works
Ordering peptides: choose your products, pay by bank transfer and receive them discreetly within the EU. The order process step by step.
Buying Peptides for Muscle Growth: The Main Compounds
IGF-1 LR3, Ipamorelin, CJC-1295 and more: the main compounds from muscle-growth research lined up. Research-only, with a COA per batch.
Peptides EU: Why Choose an EU-Based Supplier?
An EU supplier benefits from free movement of goods: no customs clearance and faster delivery. Discover why origin makes a difference.
Peptides Netherlands: Market, Legality and Delivery
Research peptides are legal in the Netherlands as research-only material. Discover the market, the legal framework and where LYSENTA stands.
Peptides Europe: Shipping and Legality per Country
Shipping and the legal framework differ per European country. Discover how delivery within Europe works and what to watch for.
What Is the KLOW Blend? GHK-Cu, KPV and TB-500 Together
KLOW combines GHK-Cu, KPV and TB-500 in one research-grade blend. Discover why these three peptides are combined — explained clearly and research-only.
What Is the Glow Blend? Multi-Peptide Blend for Skin Research
Glow combines complementary skin peptides in one research-grade blend. Discover the difference from KLOW — explained clearly and research-only.
Retinol and Skin Peptides: Why This Combination in Serums?
Retinol is not a peptide, but is often combined with skin peptides in serums. Discover why, and how it differs from research-grade material.
What Are Collagen Peptides? Difference from Research Peptides
Collagen peptides are hydrolysed collagen, not a research peptide. Discover the difference and why these two categories should not be confused.
What Does the Word Peptide Mean? Origin and Definition
The word peptide comes from the Greek for 'digested'. Discover the exact meaning and why the term is used so broadly.
Peptide Therapy: What Does Research Say, What Is Hype?
'Peptide therapy' is often more marketing than research. Discover how to recognise the difference between preclinical evidence and broad promises.
Buy GHK-Cu: What to Look for on Purity and COA
How to assess GHK-Cu for research: purity, copper complexation, COA and traceability.
Peptide Glossary: The Key Terms Explained
A reference for the vocabulary of peptide research: from COA to lyophilisation to GHRH, explained briefly with links to the deeper guides.
What Is NAD+? The Co-Enzyme in Longevity Research
NAD+ is not a peptide, but a co-enzyme central to longevity research. Discover why, clearly and research-only.
What Is KPV? The Immunological Tripeptide in Research
KPV is a tripeptide fragment of alpha-MSH, studied in immunological research. Explained clearly and research-only.
What Is Thymosin Alpha-1? The Immunological Peptide
Thymosin Alpha-1 is a peptide from the thymus gland, studied in immunological research into T cells. Explained clearly and research-only.
What Is Melanotan 1 (Afamelanotide)? Pigmentation Research
Melanotan 1 (afamelanotide) is a linear alpha-MSH analogue from pigmentation research. Difference from Melanotan 2, explained clearly.
What Is L-Carnitine? Fatty-Acid Transport in Metabolic Research
L-Carnitine is not a peptide, but is studied within metabolism research into fatty-acid transport. Explained clearly.
What Is SLU-PP-332? The 'Exercise Mimetic' in Research
SLU-PP-332 is not a peptide, but an ERR agonist studied as an 'exercise mimetic'. Explained clearly and research-only.
What Is PDRN? Polydeoxyribonucleotide in Skincare
PDRN is a DNA-fragment complex from skincare. Discover the difference from medical uses elsewhere — explained clearly.
What Is Glutathione? The Antioxidant Tripeptide
Glutathione is a tripeptide with a unique gamma-peptide bond, studied in longevity research. Explained clearly and research-only.
CJC-1295 + Ipamorelin Blend: Why This Combination
CJC-1295 and Ipamorelin act on different receptors within the same axis. Why the combination recurs so often in research.
Choosing Insulin Syringes: Which Size for Reconstitution?
Which syringe size fits reconstitution of research peptides? 1 ml versus 0.5 ml, and why alcohol swabs belong in the kit.
Peptide nomenclature: why BPC-157 is called that
Some peptide names are literally the sequence, others a programme code. Which information sits in a name — and which does not.
Solid-phase peptide synthesis: how a peptide is built
A peptide is built on a resin bead, from C- to N-terminus. Why that method determines how pure the end product is.
Peptide half-lives: why the numbers disagree
Half-life always holds within one system. Why published values vary so widely, and which interventions shift them.
Cold chain and peptides: what actually matters
The cold chain matters for solutions, not for dry powder. What actually degrades a peptide and what you do about it.
What is HPLC? How peptide purity is measured
HPLC separates a sample and expresses the target peptide as a percentage of peak area. Why that is a ratio and not a weighing.
What is mass spectrometry? Confirming a peptide's identity
Mass spectrometry weighs molecules and so confirms a peptide's identity. What it measures, and what it cannot show.
What is lyophilisation? Why peptides are freeze-dried
Freeze-drying pulls the water out of a peptide by sublimation. No water means no hydrolysis — and a powder that survives transport.
Bacteriostatic Water: What Is It and What Is It Used For?
Bacteriostatic water contains benzyl alcohol as a preservative, allowing repeated puncturing. Learn the difference from WFI and how to store it.
What Do Peptides Do? Why There Is No Single Answer
There is no universal answer to what peptides do — it depends entirely on which peptide it is. This overview maps the main research areas.
Peptides for Muscle Growth: What Does the Research Say?
Peptides for muscle growth are mostly linked to the growth-hormone axis. Discover which peptides appear in the literature — research-only, no performance claims.
What Is HCG (Human Chorionic Gonadotropin)?
HCG is structurally similar to luteinising hormone and binds to the same receptor. Discover its role within the HPG axis — clear and research-only.
What Is IGF-1 LR3? A Modified Growth Factor in Research
IGF-1 LR3 is IGF-1 with an extra arginine, giving it a longer half-life as a research subject. Explained clearly and research-only.
Peptides for Skin: Cosmetic vs Research-Grade
Peptides for skin come as cosmetic serums and as research-grade powder. Discover the difference and which peptides you'll encounter.
What Is HGH (Human Growth Hormone)? Difference from Secretagogues
HGH is growth hormone itself; secretagogues prompt the pituitary to release it. The difference explained clearly, research-only.
Buy TB-500: What to Look for on Purity and COA
How to assess TB-500 for research: purity, COA, traceability — plus how to read a certificate.
Is Retatrutide a Weight-Loss Drug? What Research Does and Doesn't Say
Retatrutide is not a weight-loss drug. Discover where the 'reta weight loss' hype comes from and what research does and does not show.
What Is CJC-1295? GHRH Analogue in Growth-Hormone Research
CJC-1295 is a GHRH analogue from growth-hormone research. Learn the difference between no DAC and with DAC — clear and research-only.
What Is GHK-Cu? The Copper Peptide in Skin & Tissue Research
GHK-Cu is the tripeptide GHK bound to a copper ion. Why it is called a copper peptide and how it differs from cosmetics — research-only.
What Is Epithalon? The Pineal Peptide in Longevity Research
Epithalon is a tetrapeptide from longevity research. Learn where the name pineal peptide comes from — clear and research-only.
What Is Ipamorelin? Selective GHRP in Growth-Hormone Research
Ipamorelin is a selective GHRP from growth-hormone research, often paired with CJC-1295. Explained clearly and research-only.
What Is Tesamorelin? GHRH Analogue in Metabolic Research
Tesamorelin is a GHRH analogue from metabolic research. Learn how it relates to CJC-1295 — clear and research-only.
What Is DSIP? The Sleep Peptide in Neuro Research
DSIP (Delta Sleep Inducing Peptide) is a nonapeptide from sleep and neuro research. Explained clearly and research-only.
What Is Selank? The Anxiety & Cognition Research Peptide
Selank is a synthetic heptapeptide from neuro research, derived from tuftsin. How it compares to Semax — clear and research-only.
What Is Semax? The Cognition & Neuroprotection Peptide
Semax is a synthetic heptapeptide from an ACTH fragment, studied in cognition research. How it compares to Selank — clear and research-only.
What Is Kisspeptin? The Reproduction Research Peptide
Kisspeptin is a neuropeptide from the KISS1 gene, central to the HPG axis in reproduction research. Explained clearly and research-only.
What Is SS-31? The Mitochondria-Targeted Research Peptide
SS-31 (elamipretide) is a tetrapeptide that targets the mitochondria and binds cardiolipin. Explained clearly, research-only.
What Is Melanotan 2 (MT2)? The Pigmentation Research Peptide
Melanotan 2 (MT2) is a synthetic analogue of alpha-MSH, studied in pigmentation research. Melanotan 1 vs 2 explained, research-only.
Growth-Hormone Peptides: The Complete Guide (GHRH & GHRP)
GH peptides fall into two families: GHRH analogues and GHRPs. This hub orders the field and points to each molecule. Research-only.
Copper Peptides: What Are They and Which Ones Exist?
Copper peptides bind a copper ion; GHK-Cu is the most studied. The difference between cosmetic and research copper peptides, explained.
What Is a Peptide Bond? Formation, Structure and Hydrolysis
A peptide bond is the amide bond joining amino acids, formed by condensation. The foundation of every peptide and protein, explained.
How to Reconstitute Peptides: Step-by-Step Guide
Dissolving lyophilised peptide powder in bacteriostatic water — in 6 clear steps, plus which water and how to store.
What Is TB-500? Research and Mechanism of Action
TB-500 is a fragment of Thymosin Beta-4, studied for actin regulation and cell migration. Discover its origin and differences from BPC-157.
Combining BPC-157 and TB-500: The Blend Explained
Two complementary recovery peptides in one blend. Why they are studied together and when to choose separate or blended.
How to Read a COA (Certificate of Analysis)?
A COA confirms the purity of a single batch. Learn in 4 steps how to read it, check it and link it to your vial.
What Is Retatrutide? Triple Agonist in Research
Retatrutide is a triple agonist studied on GIP, GLP-1 and glucagon in research. Mechanism and status, strictly research-only.
Buy Retatrutide: What to Look For
How to assess Retatrutide for research: purity, COA, the research-only framework and shipping. Strictly research-only.
Retatrutide vs Tirzepatide: The Difference
Tirzepatide is a dual agonist, Retatrutide a triple agonist. Compare receptor targets and status — informative and research-only.
What Is MOTS-C? Mitochondrial Peptide in Research
MOTS-C is a mitochondrial peptide studied for metabolic homeostasis and the AMPK pathway. Function and context, research-only.
What Is AOD-9604? hGH Fragment in Metabolic Research
AOD-9604 is a fragment of growth hormone (hGH 176-191) studied on fat metabolism. Research-only.
What Is 5-Amino-1MQ? NNMT Inhibitor in Research
5-Amino-1MQ is a small molecule that inhibits NNMT, studied in relation to NAD+ and energy metabolism. Research-only.
Are Peptides Safe? Quality, Purity and Research-Only
For research material, ‘safe’ means something different. Learn why purity, documentation and lab handling are central.
Are Peptides Legal? The Research-Only Framework
Research material or medicine? Learn the framework in which research peptides are offered.
Peptides for Recovery: The Complete Research Guide
BPC-157, TB-500 and GHK-Cu are the most-studied recovery peptides. This guide untangles their differences, reconstitution and purity.
What Is BPC-157? Research and Mechanism of Action
BPC-157 is a pentadecapeptide derived from a gastroprotective protein. Discover its structure, origin and research themes.
Buy BPC-157: What to Look for on Purity and COA
How to assess BPC-157 for research: purity, COA, traceability and shipping — plus how to read a certificate.
What Are Peptides? The Complete Research Guide
Peptides are short chains of amino acids — but the term covers three very different things. This guide untangles biochemistry, skincare and research peptides.
Compare peptides
BPC-157 vs TB-500: what is the difference?
View product →CJC-1295 vs Ipamorelin: what is the difference?
View product →Semax vs Selank: what is the difference?
View product →GHK-Cu vs copper peptide serum: what is the difference?
View product →Tesamorelin vs CJC-1295: what is the difference?
View product →Melanotan 1 vs Melanotan 2: what is the difference?
View product →AOD-9604 vs tesamorelin: what is the difference?
View product →MOTS-C vs SS-31: what is the difference?
View product →BPC-157 vs GHK-Cu vs TB-500: the three recovery peptides
View product →Semaglutide vs tirzepatide vs retatrutide: the difference
View product →The knowledge base is growing — new guides on recovery, metabolism, growth hormone and longevity are on the way. For Research Use Only.