If you were in a gym between 2008 and 2012, you either took Jack3d or you knew someone who did. One small scoop of the bright-colored powder and you felt like you could run through a wall. Energy, focus, euphoria — effects that went far beyond anything else on the supplement shelf. It felt closer to a pharmaceutical stimulant than a protein shake.

That's because it was one.

The secret ingredient was DMAA — 1,3-dimethylamylamine — a compound structurally related to amphetamine that was originally patented by Eli Lilly in 1944 as a nasal decongestant. It was pulled from the pharmaceutical market in 1983 for safety concerns. Two decades later, it showed up in a pre-workout powder marketed as a natural plant extract.

This is the full story of how it happened, who died, and why nobody went to prison until almost a decade later.

THE RISE: 2006–2011

Jack3d (pronounced "jacked") was manufactured by USPlabs LLC, a Dallas, Texas supplement company. It launched around 2006 and hit peak popularity between 2009 and 2011.

The formula was deceptively simple. While competitors were cramming 20+ ingredients into bloated proprietary blends, Jack3d kept it tight: caffeine, creatine, beta-alanine, and DMAA. One small scoop. The effects were immediate and unmistakable.

It was also cheap — accessible to college students, military personnel, and casual gym-goers. Word spread through bodybuilding forums and YouTube. By 2011, DMAA-based supplements were a $100 million market in the United States, with Jack3d as the category leader.

USPlabs told retailers, consumers, and regulators that DMAA was a natural compound extracted from geranium plants. They printed it on the label. They said it in marketing materials. They defended it in regulatory filings.

It was a lie.

WHAT DMAA ACTUALLY IS

DMAA is a synthetic sympathomimetic amine — a lab-created stimulant that forces your body to dump norepinephrine into your system and blocks it from being reabsorbed. Blood pressure spikes. Blood vessels constrict. Heart rate elevates. Your brain floods with alertness and focus.

Combine that with intense exercise, heat, or dehydration, and you have a mechanism for cardiac arrest.

THE GERANIUM LIE

Multiple independent studies found that geranium plants do not contain DMAA in any meaningful quantity. Health Canada concluded it wasn't from geranium in 2011. The 11th Circuit Court of Appeals ruled in 2019 that DMAA is not an "herb or other botanical." The federal indictment later revealed that USPlabs knowingly imported synthetic DMAA from Chinese chemical factories and used falsified certificates of analysis to disguise its source.

Eli Lilly patented the compound in 1944. They sold it as Forthane, an over-the-counter nasal decongestant, from 1948 until they voluntarily pulled it from the market in 1983 due to safety concerns. The ingredient sat untouched for over twenty years before supplement companies decided to put it in a workout powder and call it a plant extract.

THE DEATHS

The body count started at Fort Bliss, Texas.

PFC MICHAEL LEE SPARLING · AGE 22

June 1, 2011. Sparling took the recommended dose of Jack3d, purchased from a GNC on the Fort Bliss installation. During a moderate workout — a short run interspersed with lunges up a small hill — he collapsed. He died at a hospital several hours later of respiratory failure and cardiac arrest. He was an Infantry Scout trainee from Sacramento.

SGT DEMEKIA COLA

Late 2011. Cola suffered severe rhabdomyolysis — her muscles were literally breaking down — and heatstroke during physical training after taking a DMAA product. She spent more than a month fighting complications. She died waiting for a liver transplant.

PFC DAVID ARTIS

July 2012. Another Fort Bliss soldier. Died of heat stroke during physical fitness training. His death was linked to DMAA use.

CLAIRE SQUIRES · AGE 30

April 22, 2012. London Marathon. Squires, a hairdresser from Leicestershire, collapsed and died less than one mile from the finish line. Her water bottle contained a scoop of Jack3d. The coroner ruled that DMAA, "in combination with extreme exertion, caused cardiac failure, which resulted in her death."

At least five more servicemembers — three soldiers and two Marines — collapsed during heavy exercise while using DMAA products. They survived. By April 2013, the FDA had received 86 adverse event reports linked to DMAA, including cardiac arrests, strokes, cerebral hemorrhages, liver failure, seizures, and deaths.

THE ARMY BANNED DMAA FROM ITS BASES A FULL YEAR BEFORE THE FDA TOOK FORMAL ACTION.

THE TIMELINE: FROM WARNING LETTERS TO HANDCUFFS

2009

WADA bans DMAA from competitive sports.

DEC 2011

Stars and Stripes reports on soldier deaths at Fort Bliss. The Department of Defense opens a safety investigation.

MAR 2012

The U.S. Army bans all DMAA supplements from every Army installation.

APR 2012

FDA sends warning letters to 10 DMAA supplement manufacturers after 40+ adverse event reports, including deaths.

JUL 2012

Department of Defense extends the ban to all U.S. military installations worldwide. USPlabs quietly launches "Jack3d Micro" — a reformulated version without DMAA.

APR 2013

FDA formally determines DMAA is not a legal dietary supplement ingredient. Issues a consumer advisory warning of heart attacks and other serious health problems. 86 adverse events now on file.

JUN 2013

Federal prosecutors seek court orders to seize over 3,200 cases of Jack3d and OxyElite Pro from GNC warehouses. USPlabs eventually destroys $8 million in product.

SEP 2013

A separate USPlabs product, OxyElite Pro, causes an outbreak of acute hepatitis in Hawaii. 97 cases. 47 hospitalized. 3 liver transplants. 1 death.

NOV 2015

An 11-count federal indictment is unsealed against USPlabs, S.K. Laboratories, and five executives. Charges include conspiracy, fraud, and money laundering.

2019

USPlabs executives plead guilty. The 11th Circuit Court of Appeals rules DMAA is not a dietary ingredient.

OCT 2020

CEO Jacobo Geissler sentenced to 5 years in federal prison. President Jonathan Doyle sentenced to 2 years. Total fines and forfeitures: approximately $60 million.

From the first soldier's death to the CEO's sentencing: nine years.

WHAT THE INDICTMENT REVEALED

The criminal case pulled back the curtain on how USPlabs actually operated.

The company told retailers, wholesalers, and the public that its products contained natural plant extracts. The reality: they were importing synthetic stimulants manufactured in Chinese chemical factories and using falsified certificates of analysis to disguise what the ingredients actually were.

They knew the DMAA wasn't from geranium. They said it anyway — on labels, in marketing, in regulatory filings, and directly to major retailers like GNC.

THE SENTENCES

Jacobo Geissler (CEO) — 5 years in federal prison, $250,000 fine, FDA debarment
Jonathan Doyle (President) — 2 years in prison, $250,000 fine
Sitesh Patel (VP, S.K. Labs) — 41 months in prison
Cyril Willson (Consultant) — 18 months
Matthew Hebert (Co-owner) — 15 months

USPlabs was ordered to pay $4.7 million in forfeiture and cease operations. S.K. Laboratories forfeited $6 million. Total penalties across all defendants: approximately $60 million.

THE SYSTEM THAT LET IT HAPPEN

Here's the part nobody wants to talk about.

Under the Dietary Supplement Health and Education Act of 1994 (DSHEA), the burden of proof falls on the FDA — not the manufacturer — to prove a supplement is unsafe before it can take action. Supplement companies don't have to prove their products are safe before selling them. That's the opposite of how pharmaceutical drugs work.

This means the FDA operates in a permanent reactive mode. It can only act after people are harmed, after lengthy investigation, and often after years of litigation.

The DMAA case proved it. From the first death to the product being pulled: two years. From the first enforcement action to criminal sentencing: eight years. Another company, Hi-Tech Pharmaceuticals, fought the FDA over DMAA through seven years of litigation across multiple levels of the federal court system.

Senator Dick Durbin has introduced the Dietary Supplement Listing Act three times — in 2022, 2024, and again in January 2026 — which would require supplements to register with the FDA and disclose all ingredients. The FDA estimates there are over 100,000 dietary supplements on the U.S. market and has no comprehensive list of what they are or what they contain.

As of 2026, none of those reform bills have passed. The supplement industry still runs on the same 1994 framework.

WHERE JACK3D IS NOW

A reformulated version of Jack3d is sold in the U.S. through specialty retailers. It uses DMHA (2-aminoisoheptane), a DMAA analogue that is itself facing increasing FDA scrutiny. It keeps the name. It's a fundamentally different product.

In January 2026, USP Labs relaunched Jack3d in Europe with a completely compliant formula — citrulline, beta-alanine, creatine, caffeine. No DMAA. No DMHA. They've publicly acknowledged they'd love to bring back the original formula but that it's "not legally possible."

DMAA itself still surfaces in gray-market pre-workouts sold through small online retailers. The cycle repeats: a brand launches a DMAA product, gains underground popularity, gets too visible, faces enforcement, disappears. Another brand fills the gap.

DMAA HAS CAUSED MORE POSITIVE DOPING TESTS THAN ANY OTHER STIMULANT IN COMPETITIVE SPORT.

WHAT THIS MEANS

The Jack3d story isn't just about one pre-workout. It's a case study in what happens when a regulatory framework trusts an industry to police itself.

A company imported a synthetic amphetamine analogue from China, called it a geranium extract, sold it to millions of people through GNC and military base stores, and it took nine years from the first death to a prison sentence. The fundamental law that made all of this possible hasn't changed.

The next time you pick up a supplement with an ingredient you've never heard of, remember: nobody had to prove it was safe before they put it on the shelf. That's still the law.

KEY FACTS

Product: Jack3d by USPlabs LLC (Dallas, TX)
Active ingredient: DMAA (1,3-dimethylamylamine) — synthetic, not from geranium
Peak market: $100M+ in DMAA supplement sales in 2011
Deaths directly attributed: At minimum 4 (Sparling, Cola, Artis, Squires)
FDA adverse events: 86 reports by April 2013
Criminal penalties: ~$60M in fines/forfeitures, CEO got 5 years
Time from first death to sentencing: 9 years
Regulatory reform passed since: None