Journal
Peptide news, explained
A daily briefing on peptide science, regulation and industry: new studies, FDA actions, pipeline updates and what they mean for researchers. Plain English, primary sources linked, no hype.
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What Is Tesamorelin?
Tesamorelin is a 44-amino-acid growth-hormone-releasing-hormone analog approved by the FDA for one narrow indication, and separately studied for liver fat and cognitive aging.
ExplainerRegulationFDAAnti-doping
What Is BPC-157?
BPC-157 is a synthetic 15-amino-acid peptide modeled on a protein found in human gastric juice, studied almost entirely in rodents and not approved as a drug anywhere.
ExplainerRegulationAnti-dopingRecovery research
How Are Peptides Made?
Most research peptides are built chemically, one amino acid at a time on a plastic bead, then purified and freeze-dried — only the longest chains are usually grown inside a cell.
ExplainerManufacturingQuality & testing
Peptide vs. Protein: What's the Difference?
Peptides and proteins are both chains of amino acids joined by the same bond — the real differences are length, folding and, these days, which federal regulation applies to them.
ExplainerManufacturingQuality & testing
What Is a Lyophilized Peptide?
A lyophilized peptide has had its water removed by freeze-drying, leaving a dry powder that resists the water-dependent reactions that break peptides apart in solution.
ExplainerManufacturingQuality & testing
What Is a Certificate of Analysis (COA)?
A COA is a lab's signed report of one batch's actual test results against its spec — not a general promise the product is safe or genuine.
ExplainerQuality & testing
A Lab-Made Alzheimer's Peptide Was Already in Human Blood
A synthetic Alzheimer's peptide built to block amyloid-zinc binding turns out to occur naturally in blood, at roughly half the level in people with Alzheimer's.
StudyExplainer
What Is GHK-Cu?
GHK-Cu is a copper-binding tripeptide first isolated from human blood plasma in 1973, now sold as a reviewed cosmetic ingredient and studied mostly in cells and animals, not an approved drug.
ExplainerQuality & testingIndustry
Are Peptides Legal?
Peptides aren't illegal to study, but selling an injectable one for human use almost always means selling an unapproved drug — a "research use only" label doesn't change that, FDA's own letters show.
ExplainerRegulationFDAAnti-doping
What Is a Peptide?
A peptide is a short chain of amino acids joined by peptide bonds — where that chain becomes a "protein" instead is a convention, not a law of chemistry.
ExplainerGLP-1Industry
NSW ER Visits Tied to Unapproved Peptides Rose 43-Fold
Monthly ER visits tied to unapproved peptides in New South Wales rose from 5 to 217 in a year, and one peptide accounted for 71% of them.
Gray marketQuality & testingGLP-1Regulation
Pairing Two Gut Hormone Drugs Protected Mice From Immune Injury
A diabetes drug did nothing alone against immune-driven gut damage in mice; combined with a short-bowel-syndrome drug, it reduced the injury.
GLP-1StudyExplainer
GLP-1 Drugs Cut Seizure Risk in Humans, Raise It in Some Mice
Large studies tie GLP-1 drugs to far fewer seizures in people with diabetes, but a new review says mouse data complicate that reassuring picture.
GLP-1StudyExplainer
Scientists Designed Enzymes From Scratch to Cut Disease Proteins
Researchers built enzymes from scratch that cut the notoriously stable peptide bond at chosen sites in TDP-43, amyloid-beta and serum amyloid A.
StudyExplainerPipeline
A Radioactive Peptide Beat Standard Care in a Rare Cancer Trial
A radioactive peptide slowed disease progression in a rare-tumor trial better than standard care — the first Phase 3 win ever for this drug class.
PipelineStudyFDAIndustry
HHS Sends Its Peptide Compounding Plan to the White House
HHS has formally filed a peptide compounding policy with the White House for review, moving the plan from anonymous sourcing to a dated government record.
RegulationFDAQuality & testingIndustry
Wall Street Just Gave Peptide Companies Their Own Stock Index
A new Nasdaq fund tracks 36 companies spanning peptide drugs, manufacturing and supplements — treating peptides as a distinct market sector for the first time.
IndustryManufacturingPipelineGLP-1
A Topical Peptide Spray Beat Placebo in a 348-Patient Burn Trial
A 348-patient trial found a peptide spray healed 64% of infected burn wounds by day 15, versus 43% on placebo, with no drug detected in patients' blood.
Antimicrobial peptidesStudyQuality & testingRecovery research
BPC-157 Use Is Climbing While Its Human Safety Data Isn't
Reported BPC-157 use has risen sharply since 2020, but the peptide still has almost no published human safety data behind it.
RegulationRecovery researchQuality & testingGray market
GLP-1 Drugs Linked to Fewer Hip Replacement Revisions Than Surgery
A matched study of 5,280 hip-replacement patients found far fewer revisions and infections among those on GLP-1 drugs than those who'd had bariatric surgery.
GLP-1Metabolic researchStudy
About this journal Each post reports on published research, public regulatory actions and company announcements, with the sources linked. It is not medical advice, and nothing here is a claim about any product Torrey Labs supplies. Read the peptide guide for the basics, or look up a lot's certificate of analysis.
Research use only All products supplied by Torrey Labs are sold for laboratory research use only by qualified professionals. They are not drugs, foods, cosmetics, or medical devices, are not approved by the FDA, and must not be administered to humans or animals. No product is offered for the diagnosis, treatment, cure, or prevention of any condition, and no medical claims are made.