Peptide Research Education
Plain-English education on research peptides: how they work, what has been studied, how they are tested and regulated. For research use only.
- How Are Peptides Made? One Bead, One Link at a Time
How are peptides made? Usually not grown in cells. They're built one amino acid at a time on a tiny bead, and the small misses are why purity testing exists.
Quality & Handling · November 7, 2026
- What Is Semax? Where It Came From, and What "Approved in Russia" Really Means
What is Semax? A 7-amino-acid peptide built in Moscow from a piece of a stress hormone. It's a medicine in Russia. Here's why that isn't proof.
Neuro Research · November 2, 2026
- Does GHK-Cu Need to Be Refrigerated? How to Store a Sealed Vial
Does GHK-Cu need to be refrigerated? A sealed, freeze-dried vial lives in the fridge, dark and dry, with the freezer for long-term. Here's why.
Quality & Handling · October 31, 2026
- Is GHK-Cu Legal? What the FDA Actually Did in 2026
Is GHK-Cu legal? The 2026 FDA story is about pharmacy compounding lists, not approval. Here's what changed, what didn't, and what comes next.
Regulation · October 30, 2026
- GHK vs GHK-Cu vs AHK-Cu: What's the Difference?
GHK vs GHK-Cu vs AHK-Cu: one swapped amino acid and one copper ion apart. Here's how they differ, with each molecular weight side by side.
Tissue Research · October 29, 2026
- Why Is GHK-Cu Blue? What the Color Tells You, and What It Can't
Why is GHK-Cu blue? It's the copper. Here's what the color proves about a copper peptide vial, and what it can never tell you.
Tissue Research · October 28, 2026
- Are Peptides Steroids? The Difference Comes Down to Shape
Are peptides steroids? No. One is a chain of amino acids, the other is four fused carbon rings. Here's the difference, and why it matters for a vial.
Quality & Handling · October 23, 2026
- What Is KPV? The Three-Amino-Acid Tail of Alpha-MSH
What is KPV? Three amino acids snipped off the end of the hormone alpha-MSH, and the short list of what it's actually been studied in.
Tissue Research · October 11, 2026
- What Is TB-500? Where the Name Came From and What's Actually Been Studied
What is TB-500? A nickname from horse racing, not an official drug name. Here's the molecule it usually means and what's actually been studied.
Tissue Research · October 11, 2026
- What Is BPC-157? Where It Came From and What's Actually Been Studied
What is BPC-157? A 15-amino-acid fragment from a 1993 stomach-protein paper. Most of its research comes from one lab, and the human data is tiny.
Tissue Research · October 11, 2026
- What Is SS-31? The Research Peptide That Shares a Molecule With a Drug
What is SS-31? A tiny lab-built peptide that binds cardiolipin. The same molecule is in one FDA-approved drug. Your research vial isn't that drug.
Cellular Research · October 11, 2026
- What Is MOTS-c? Where It Comes From, and What's Actually Been Tested
What is MOTS-c? A 16-amino-acid peptide coded in mitochondrial DNA, found in 2015. Most of what you read about it was measured, not given. Here's why.
Cellular Research · October 11, 2026
- TB-500 vs Thymosin Beta-4: The Main Differences Between the Fragment and the Parent Peptide, and What the Research Says
TB-500 gets sold as thymosin beta-4. Usually it's a piece under a fifth the size. One number, its weight, tells them apart.
Tissue Research · October 4, 2026
- Three-Peptide vs Four-Peptide Blends: What's in Each, and the One Difference
The four-peptide blend isn't a stronger three-peptide blend. It's the same GHK-Cu, BPC-157 and TB-500 plus KPV. Here's what's in each vial, by the milligram.
Tissue Research · October 3, 2026
- Made in USA vs. Imported Peptides: Where Each Step Happens
Made in USA vs imported peptides is really two questions: where the raw peptide is made, and where the vial is finished. Here's how to tell.
Quality & Handling · October 2, 2026
- How to Handle Your Vials (and Why You Never Shake Them)
How to handle peptide vials without the panic. A box on the porch is rarely the problem. Shaking a mixed vial is. Here's what the studies found.
Quality & Handling · October 1, 2026
- Peptide Half-Life Explained: Why Some Last Minutes and Others Last Days
Some peptides clear the blood in two minutes. Others last a week. Peptide half-life explained, and the 1978 study that shows why longer isn't better.
Quality & Handling · September 30, 2026
- CJC-1295 With DAC vs. No DAC: What's the Difference?
CJC-1295 with DAC vs no DAC isn't one peptide in two strengths. The no-DAC one is a different molecule with a borrowed name. Here's how to tell.
GH Secretagogues · September 29, 2026
- BPC-157 and TB-500: Why Researchers Study Them Together, and What the Research Actually Says
BPC-157 and TB-500 get sold as a pair. For decades nobody ran a controlled test of them together. Then a 2026 rat study did. Here's what it found.
Tissue Research · September 28, 2026
- Sermorelin vs Tesamorelin vs Ipamorelin: What Really Sets Them Apart
Sermorelin vs tesamorelin vs ipamorelin: two copy one brain signal, one mimics another. Here's how to tell them apart, down to the mass on a COA.
GH Secretagogues · September 27, 2026
- What "Third-Party Tested" Actually Means for Peptides
What does third-party tested mean for peptides? A named lab tested one batch on one date. Here's the 30-second check that shows if it still counts.
Quality & Handling · September 26, 2026
- Semax vs Selank: The Main Differences and What the Research Says
Semax vs Selank: same Moscow institute, same length, same three-bead tail. One front piece sets them apart, and it split their research two ways.
Neuro Research · September 25, 2026
- Kisspeptin-10 vs Kisspeptin-54: Where the Name Came From and Which Form Was Studied
Kisspeptin's gene is named after a chocolate candy, and most of its human research used a different form than most people assume. Here's which one.
Hormone Research · September 24, 2026
- Peptide Blends: Does pH Balance Matter?
Does pH matter in peptide blends? Yes, but it's locked in before the vial is sealed. Here's what you can actually check instead.
Tissue Research · September 23, 2026
- MOTS-c vs SS-31: Two Mitochondrial Peptides, Two Very Different Jobs
MOTS-c vs SS-31: one became an FDA-approved drug. The other hasn't been given to people in any published trial. Here's how they really differ.
Cellular Research · September 22, 2026
- Why Mitochondria Matter, and the Peptides Researchers Study Them With
Mitochondria carry their own DNA, and it codes for peptides. What mitochondrial peptides are, where MOTS-c and humanin came from, and how SS-31 differs.
Cellular Research · September 21, 2026
- What Does "Triple Agonist" Mean? A Plain-English Guide
What does triple agonist mean? Not triple strength. It's one molecule built to fit three locks. Here's what the label tells you, and what it doesn't.
Metabolic Research · September 20, 2026
- What Is GHK-Cu? The Copper Peptide, Explained Simply
What is GHK-Cu? A three-amino-acid peptide holding one copper ion, first found in human blood in 1973. How it was studied and its FDA status in 2026.
Tissue Research · September 19, 2026
- The FDA "Peptide Ban" of 2026: What Actually Happened
The FDA peptide ban of 2026 was never a ban, and July's 8 to 6 vote on BPC-157 wasn't an approval. Here's what each step really changed.
Regulation · September 17, 2026
- How to Read a Peptide Certificate of Analysis: Purity vs. Net Content
How to read a peptide COA: 99% pure doesn't mean your vial is 99% peptide. One line tells you how much peptide is really in the powder.
Quality & Handling · September 17, 2026
- How to Store Lyophilized Peptides: Stability, Shelf Life, and the Cold-Chain Myth
How to store lyophilized peptides, simply: what really breaks the powder down, fridge vs freezer, and the one moment cold can hurt.
Quality & Handling · September 17, 2026
- How to Choose a Research Peptide Supplier: Check Identity First
How to choose a research peptide supplier: a 99% pure peptide can still be the wrong peptide. Here's the line on the certificate that proves what it is.
Quality & Handling · September 17, 2026