Research Blog

What started as a simple order test turned into a multi-week case study in delayed fulfillment, missing product, weird communication, surprise refunds, surprise shipping, and lab results that somehow made the bacteriostatic water the hero of the story.

Peptide Critic tested normal-looking and tiny residue-looking lyophilized pucks from the same Semax/Selank blend.

Multi-lab retatrutide testing from AFI, Janoshik, TrustPointe, Freedom, and Vanguard shows why peptide purity and mass results can vary between labs.

Peptide Critic partnered with Analytical Formulations Inc. to test how Tirzepatide, MOTS-c, and Mazdutide held up under refrigerated and room-temperature storage over time.

Track peptide availability and pricing across vendors in real time. Set restock alerts, watch price history, and stop checking five sites every morning.

Major peptide vendors confirm GLP product removals due to evolving compliance standards. PeptideSciences and Modern Aminos signal a tightening market.

PeptideSciences has removed GLP-1 peptides as enforcement pressure grows. We examine industry signals, affiliate warnings, and SS-31 cease and desist actions.

“Retatrutide” batch tested at zero RETA, sending two users to the hospital. Peptide Critic breaks down the factory raid, AFI test results, community warnings, and the dangers of gray-market peptides.

MHRA’s record UK peptide bust proves one thing—researchers must vet sources, not trust basement-filled pens. Stay safe with verified gear.

At first glance, GLP‑1 agonists like semaglutide (Wegovy) and tirzepatide (Zepbound) look like another weight‑loss fad. In clinical trials, these drugs slowed stomach emptying, increased feelings of fullness and cut energy intake by about 35 %

Grey market peptides are growing in popularity, but safe research practices are essential. Learn about transparency, vendor testing, and lab protocols that protect research integrity.

Learn why third-party peptide testing is essential for research reliability. Discover trusted labs like Janoshik, Freedom Labs, and Colmaric, and why vendor COAs alone aren’t enough.