Founded in 2020 by three friends who went looking for one place to compare energy drinks, found it didn't exist, and built it.
Caffeine Shark started when three friends realized there was no central place to research, discuss, and compare energy drinks. Our mission is to bridge the gap between brands and drinkers, and help every caffeine fan find their fix.
We review by look, taste, and kick, give every drink an overall verdict, and blend in your ratings to produce a single Shark Score. Think of it as Beer Advocate for energy drinks.
Want a drink on the list? Request a review.
Founding Shark · Kick specialist
Go-to cans
Every review rates four things on a 0–10 scale. Overall is its own judgment, not an average of the other three.
The can: design, color, how it stands out in the cooler.
Flavor, sweetness, carbonation, and aftertaste.
How hard it hits, how long it lasts, and whether it crashes.
Would we buy it again? This is the number that counts.
The Shark Score blends the Sharks' average Overall rating with the average from reader reviews. Each approved reader review adds 10% weight to the reader side, capped at 40%, so the crowd matters more as reviews pile up but can't drown out the experts.
reader weight = min(0.1 × reader reviews, 0.4)
Shark Score = 10 × ( Shark avg × (1 − reader weight) + reader avg × reader weight )
Example: Sharks average 8.4, one reader gives it a 10. Weight = 10%, so 10 × (8.4 × 0.9 + 10 × 0.1) = 85.6, shown as 86 (Excellent). Ties are ranked by the unrounded score.
Each dot is one drink: caffeine per fluid ounce across, Shark Score up. Select a dot to open its review.
Correlation r = 0.17. Caffeine and score are weakly related. Drinks at 15+ mg/oz average 73; drinks under 10 mg/oz average 67. Taste still decides most scores.
Not shown: Monat Energy Stick (250 mg/oz).