Our ingredients

Green Tea Extract

Green tea naturally includes EGCG and L‑theanine, which enhance metabolic activity, provide antioxidant effects, and help smooth out the jittery “spikes” common with anhydrous caffeine.

Infinergy™️ Di-caffeine Malate

Infinergy™️ is a slow release caffeine that allows for long lasting sustained energy, designed to reduce the dreaded jitters or crash common with traditional energy drinks, and even improves digestion. It is shown that Di-caffeine malate can have 2x lasting effects than traditional caffeine.

Lions Mane Mushroom Extract 8:1

Known as the “smart mushroom,” Lion’s Mane supports brain health by stimulating nerve growth factor (NGF), a key protein for learning and memory. Early clinical studies suggest it may improve focus, cognitive performance, and reduce feelings of stress and fatigue — helping you stay sharp when it matters most.

GeniusPure© Alpha-GPC

Alpha‑GPC crosses the blood–brain barrier and is metabolized into choline, boosting synthesis of acetylcholine, a neurotransmitter critical for learning and memory, also aiding in focus, concentration, and muscular control.

Citrulline

L-Citrulline boosts blood flow, increasing oxygen and nutrient delivery to working muscles. Research in endurance athletes shows it can delay fatigue — with cyclists demonstrating up to a 12% longer time to exhaustion compared to placebo.

What's included in your subscription bundle?

  • 249 mg of fast acting green tea extract and slow release caffeine for smooth, lasting energy
  • Two nootropics, lion's mane mushroom and alpha-gpc for cognitive function
  • Informed Sport Certified for a trustworthy, transparent, athlete-safe formula
  • No artificial colors, flavors, or sweeteners
  • Free gift each subscription cycle
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Testimonials

"I grab an underdog whenever I need a pick me up in the afternoon. Its everything they say, steady energy without the crash."

Lauren P

"This drink was a game-changer! The perfect amount of caffeine kept me laser-focused for hours. The Strawberry Lemonade was my preferred flavor. Will definitely get it again!"

Nikolai M

"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

Frequently asked questions

Do I have to subscribe to monthly delivery?

Our default delivery setting is every 4 weeks, but you can easily change your delivery interval to 1, 2, or 4 weeks within your account. You can also increase your quantity if you want more Underdog.

Can I cancel my subscription?

Yes, you can cancel, pause, change flavors, or increase the number of cans in your subscription at any time.

What if I don't want to subscribe?

You can always cancel your subscription if you are unhappy with Underdog (p.s. we think you'll love clean energy...)