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Paradigm Peptides' Owner Got 70 Months for Faking His Lab Certificates. Here's What That Actually Looked Like.

On July 30, a federal judge sentenced Matthew Kawa, the owner of Paradigm Peptides, to 70 months in prison for forging laboratory certificates and selling products that turned out to contain actual testosterone instead of what the label promised. His company took in more than five million dollars from an estimated 54,000 customers before it was shut down, and one of those customers is now suing after being diagnosed with steroid-induced psychosis.

What happened

On July 30, a federal judge in South Bend, Indiana, sentenced Matthew Kawa to 70 months in prison, one of the longest sentences anyone in the research peptide market has drawn. Kawa ran Paradigm Peptides, an online vendor that sold peptides, SARMs, and HCG to customers in every state and more than 80 countries between 2019 and 2024. He'd pleaded guilty to introducing unapproved drugs into interstate commerce with intent to defraud, plus an illegal importation charge. His sister and main employee, Jennifer Stechkober, 32, pleaded guilty too and was sentenced to 16 months. Both were ordered to pay $78,317.52 in restitution to identified victims, and the court entered a separate five million dollar money judgment against Kawa, 48, matching what prosecutors say he pulled from an estimated 54,000 customers.

Judge Cristal Brisco didn't mince words on the way to that sentence. "You focused on what you wanted to build instead of thinking about the people," she told Kawa, adding that he'd ignored "numerous warnings" from regulators and left "an incredible trail of harm." Those warnings were real and dated. The FDA sent Kawa letters in 2020 and 2022 telling him he was marketing and selling unapproved drugs. He kept selling anyway.

What a faked COA actually looks like

Paradigm's marketing told customers three things, that the products were made in the company's own U.S. labs, that they were tested for quality, and that they were safe and of pharmaceutical grade. Court filings say all three were false. The products came from manufacturers in China, India, and elsewhere, and Kawa admitted the company never tested them before selling them.

The certificate itself was the lie

Kawa admitted in his plea that Paradigm forged the laboratory certificates it showed customers, the documents meant to prove a product had been independently tested and was what the label said it was. A certificate of analysis only means something if the lab behind it is real and the testing actually happened. Paradigm's wasn't and it didn't, and there was no way to tell just from looking at the paper.

When investigators had six of Paradigm's SARMs tested, all six came back containing actual testosterone rather than the selective androgen receptor modulator listed on the label. Testosterone is a controlled steroid hormone with its own risks, and it was shipped to customers labeled as something else entirely.

What happened to one customer

Dan Murphy, a 32 year old marketing consultant, started taking SARMs from Paradigm in 2023 to help build muscle after losing weight. He told CBS News he felt an early boost in energy, then started sleeping less, developed severe cystic acne, and grew increasingly paranoid, eventually becoming convinced his wife and mother-in-law were working against him. He'd never had a mental health episode before. A medical expert who evaluated him, Erik Messamore, diagnosed him with steroid-induced psychosis. Murphy is now suing Paradigm Peptides, which Kawa is contesting. He didn't connect what was happening to him to the supplements until he received a letter from the Department of Justice about the federal investigation into Paradigm and had an independent lab test the SARM he'd been taking. It came back positive for testosterone.

What this means for you right now

If you buy compounds sold for research use, this case is worth sitting with for one reason. Everything Paradigm told customers, made in the USA, third-party tested, pharmaceutical grade, is exactly what a trustworthy vendor would also say. The claims looked identical on the page. The only way anyone found out they were false was a federal investigation with subpoena power and its own lab testing, tools you don't have.

What you do have is the ability to ask harder questions before you buy rather than after. Look for vendors who can point to a specific accredited testing lab by name, not just the phrase "third-party tested." Weigh a listed certificate of analysis against the vendor's actual pricing, since a company selling well below what legitimate testing and sourcing cost is telling you something. Our guide to evaluating a vendor walks through how to read a COA and what red flags to watch for, and the vendor directory and price comparison tool exist so you're not taking a single seller's word for it.

The deterrent value here is real, but it doesn't mean the market got safer overnight. Paradigm's own site went offline, and a similarly named site with the same look turned up soon after, disclaiming any connection to Kawa. Enforcement moves one company at a time, so your own diligence on each purchase still carries almost all the weight.

What to watch next is the civil suit Murphy filed against Paradigm, and whether other customers who received testosterone labeled as SARMs come forward. We'll follow it here if it moves.

All content on Peptide Price Lab is for informational and research purposes only. Nothing here constitutes medical or legal advice. This reflects publicly available court records and reporting, checked against the primary DOJ release as of August 21, 2026.

Research use only. Peptide Price Lab is an editorial calculator. Nothing here is medical advice, a recommendation, or a prescription. Consult a qualified clinician before anything that meets your body.