A cardiology team catalogues the injectable-peptide market, compound by compound

A cardiology team catalogues the injectable-peptide market, compound by compound

Three physicians at the University of Missouri-Kansas City and Saint Luke’s Mid America Heart Institute have published a review that does something the injectable-peptide market rarely gets: a compound-by-compound account of what is claimed, what mechanism is proposed, and what could go wrong. It covers BPC-157, TB-500, CJC-1295 and ipamorelin, MK-677, melanotan-II, GHK-Cu, retatrutide and … Read more

Semaglutide slowed ageing and extended lifespan in old female mice

Typographic cover image: headline reading Semaglutide slowed ageing and extended lifespan in old female mice, on the Peptide Review Desk navy brand background

A study published in Nature on 2 September reports that semaglutide, started late in life, slowed several measures of ageing in mice and extended how long they lived. The comparison arm was calorie restriction — the one intervention that has reliably stretched rodent lifespan for the better part of a century — and semaglutide matched … Read more

Online-bought retatrutide, a hospital admission, and the limits of a single case

Online-bought retatrutide, a hospital admission, and the limits of a single case

A case report published on 26 August describes a man in his mid-30s with long-standing type 1 diabetes who was admitted to hospital with severe vomiting, diarrhoea, high blood sugar, ketones and acute kidney injury, shortly after self-administering a product he had bought online marketed as retatrutide. His partner took the same preparation and also … Read more

FDA warns five research-peptide sellers over GLP-1 products

FDA warns five research-peptide sellers over GLP-1 products

The FDA’s Center for Drug Evaluation and Research issued warning letters dated 24 August 2026 to five online peptide sellers — TXP Innovations LLC dba Tex Peptides, Royal Peptides LLC, NuScience Peptides LLC, Peptide Partners LLC and Peak Performance Peptides — posted 1 September 2026. Each followed a July 2026 review of the firm’s website … Read more

FDA warns BioDrive over its “GLP-1 biomimetic” peptide supplement

FDA warning letter to BioDrive over its Evolv GLP-1 Biomimetic peptide supplement

On 24 August 2026 the US Food and Drug Administration issued a warning letter to BioDrive, Inc. over Evolv GLP-1 Biomimetic, a dietary supplement whose labeling declares “Saccharomyces cerevisiae S288C EV-1 Peptide” as a dietary ingredient. FDA classed that ingredient as a new dietary ingredient and found the product adulterated under section 402(f)(1)(B) of the … Read more

Lilly files six lawsuits over black-market retatrutide sales

Lilly files six lawsuits over black-market retatrutide sales

Eli Lilly filed six lawsuits on 12 August 2026 against US entities selling black-market retatrutide, an investigational molecule in Phase 3 trials that no regulator has approved for human use. The defendants are Aesthetic Envy Cosmetic Centers, Astra Peptides, Legendary Peptides, Striker Pharmacy, Texas Peptides and Lone Star Peptide: compounding pharmacies, medical spas and online … Read more

FDA warning letter to Wholesale Peptide over Prostamax and gonadorelin

FDA warning letter to Wholesale Peptide over Prostamax and gonadorelin

On 17 June 2026 the FDA’s Center for Drug Evaluation and Research issued a warning letter to Wholesale Peptide of Brooksville, Florida, after reviewing the firm’s website in May 2026. The letter names two products, “Prostamax” and “Gonadorelin”, as unapproved new drugs under section 505(a) of the FD&C Act, quoting site copy stating that Prostamax … Read more

FDA warns five online peptide sellers over unapproved GLP-1 drugs

FDA warns five online peptide sellers over unapproved GLP-1 drugs

On 31 March 2026 the FDA’s Center for Drug Evaluation and Research issued warning letters to five websites selling injectable peptides to US buyers: Lovega LLC dba Pink Pony Peptides, Gram Peptides, Prime Sciences, Mile High Compounds and PekCura Labs. Each cites unapproved new drugs sold over the internet under sections 301(d) and 505(a) of … Read more