We get it, got to test the 'waters'.
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The Cleanest Energy Drink You Can Buy
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Clean energy. No bullsh*t.
The cleanest energy drink
you can actually buy.
Zero sugar. 249mg time-released caffeine (175mg green tea + 74mg di-caffeine malate). Performance stack — Lion's Mane + Alpha-GPC (cognition) + L-citrulline (endurance). Informed Sport Certified.
Try the 12-Pack — $29.99 Use code SWITCH20 for 20% off your first order- ✓ Zero sugar · No artificial colors · No crash
- ✓ Informed Sport Certified — safe for tested athletes
- ✓ Free shipping on $35+ · 30-day money-back
0gSugar
Informed Sport
6–8hrActive half-life
0Crash
Read 5 labels. Pick the one that isn't lying to you.
Every energy drink claims "clean." Then you flip the can. Here's what you actually find:
 |
 |
 |
 |
|
|---|---|---|---|---|
| UNDERDOG | 300mg Spike | Lifestyle Stim | Clean-Energy Newbie | |
| Sugar | 0g | 0g | 0g | 0g |
| Caffeine | 249mg, 2 sources | 300mg spike | 200mg spike | 200mg single source |
| Multi-source time-released caffeine | ✓ | ✗ | ✗ | ✗ |
| Informed Sport Certified | ✓ | ✗ | ✗ | ✗ |
| Real nootropics (Lion's Mane + Alpha-GPC) | ✓ | ✗ | ✗ | ✗ |
| L-Citrulline at clinical dose (4g) | ✓ | ✗ | ✗ | ✗ |
| Artificial colors, flavors & sweeteners | None | Yes | Yes | Yes |
| Crash profile | None | Hard | Moderate | Mild |
Comparison categories based on publicly available nutrition labels of leading competitor products. Brand names not used. Not affiliated with or endorsed by any referenced products.
What's actually in the can.
No proprietary blends. Real ingredients at real doses — every one named on the can.
01
249mg caffeine, 2 sources
175mg from green tea extract (fast-onset natural caffeine + L-theanine for calm focus). 74mg from di-caffeine malate (slow-release for sustained energy). The reason there's an extended-release curve instead of a 30-minute spike.
02
Cognition + endurance stack
Two clinical nootropics — Lion's Mane mushroom extract for cognition and GeniusPure® Alpha-GPC 99% for choline and focus (the highest-purity Alpha-GPC available). Plus L-citrulline, the endurance amino acid that supports blood flow and oxygen delivery. Three named actives at real doses — fully disclosed on the label.
03
Informed Sport Certified
The same banned-substance certification trusted by elite athletes worldwide — independently tested for over 250 substances on the WADA prohibited list. So you can drink it and pass a sanctioned test. Originally formulated for tested athletes and frontline operators.
Developed by athletes, for athletes
Built around 5 performance ingredients. Backed by Informed Sport. Engineered for the way you actually train.
We didn't build Underdog to chase a category — we built it to fuel the people who refuse to settle. Athletes chasing PRs. Frontline workers grinding through long shifts. Competitors who can't risk a failed test. Anyone who values what's in the can as much as what it does for them.
249mg of time-released caffeine. Lion's Mane. GeniusPure® Alpha-GPC. L-citrulline. Zero sugar. Five performance ingredients, fully disclosed, dosed to actually work.
— The Underdog team
What people are saying.
"Energy + prolonged performance — the blue raspberry is unbeatable."
"I've never had an energy drink that makes me feel energized and ready to attack a workout that also has prolonged performance benefits. The blue raspberry flavour is also unbeatable in my books."
Jacob Bernard-Docker · Detroit Red Wings · NHL
Quick questions.
How much caffeine?
249mg total, time-released from two sources — green tea extract and di-caffeine malate. Extended-release curve, not a 30-minute spike.
What gives it the calm-focus feel?
Green tea's natural L-theanine balances the caffeine. Lion's Mane and Alpha-GPC support cognition. Di-caffeine malate releases slowly. No jittery edge.
Banned-substance tested?
Yes — every batch is Informed Sport Certified.
What if I don't like it?
30-day money-back guarantee. Drink the case, send the empties back, get your money.
Stop drinking the lie.
The cleanest energy drink you can buy. Informed Sport Certified. Time-released. Optimally dosed. 30-day money-back.
Try the 12-Pack — $29.99SWITCH20 = 20% off · Free ship $35+