Explore BERSERK Pre-Workout
Elevate your workout performance with BERSERK High-Stimulant Pre-Workout by JR Labs. Our specially formulated blend of ingredients ensures a powerful boost of energy, intense focus, and impressive endurance throughout your workout
Junior national champion and co-founder Russell Holbrook breaking the national squat record.
Energy
200 mg Caffeine Anhydrous + 100 mg di-caffeine malate
Pump
3000 mg L-Citruline
Focus
500 mg L-Tyrosine
Endurance
3200 mg Beta Alanine
Why Use Berserk
Unleash your potential with Berserk's meticulously crafted high-stimulant pre-workout for unmatched energy, focus, and results.
Explosive Energy Boost
200 mg Caffeine Anhydrous + 100 mg di-caffeine malate. Beat fatigue, fuel up
Boosted Pumps
3000 mg L-Citruline for fuller muscles and enhanced vascularity, empowering your sets
Laser-Sharp Focus
Stay focused with 500 mg L-Tyrosine. Enhanced clarity and concentration ensure a seamless workout
Unwavering Endurance
Overcome plateaus, conquer challenges with 3200 mg Beta Alanine. Enhanced endurance, more gains
No Crash Formula
No post-workout crashes. Our formula sustains energy throughout, ensuring a controlled descent
Top-tier Performance Boost
Optimize workouts with perfect ingredients. BERSERK Pre-Workout is a must for peak performance
Deals
Discover top picks adored by customers. Uncover quality and effectivenessthat speak for themselves.
-
Option 1
BERSERK High-Stimulant Pre-Workout
Regular price $42.99Regular priceUnit price per$45.99Sale price $42.99Sale -
Option 2
BERSERK High-Stimulant Pre-Workout
Regular priceRegular price Sale price 10% offSubscribe to Newsletter take 10% off order
Unit price per -
Option 3
BERSERK High-Stimulant Pre-Workout
Regular priceRegular price Sale price 15% offBuy 2 or more, get 15% off
Unit price per
CLIENT FEEDBACKS
Unleash your potential with Berserk's meticulously crafted high-stimulant pre-workout for unmatched energy, focus, and results.
Let customers speak for us
Great way to start my 5:30 AM work.I really enjoyed the flavor, quick pick me up, and sustained energy with no crash side effects.II rarely rate products but the guys at Bessel
hit the hammer on the nail with this one.Organic clean lift and complainant for drug tested high level athletes as well.👍
Great product and fast shipping. Highly recommend!
I came home at 2:34 am and hit the hay right away. I had to get up at 6am for work. I came home from tired and exhausted… but i knew I still had to workout. I took 1 scoop of Berserk and was instantly revived. I had one of the best workouts of my life. The pump lasted for about 2 hours before ending. It was a great escape from reality during the workout. I needed it!!! I am now a full time user of Berserk I don’t know how I survived without it.
Not too much caffeine, but just enough to last a full lift. Tastes good. Great pump throughout the lift.
I can barely type this by the rush this product gives me. The dosing is perfect for a lift while not over stimulating me. I would recommend 10/10.
Great energy with no crash and awesome pumps!
Best Product ever
The energy surge I get from it is on another level – it's like a switch flips and I'm in beast mode. The endurance it gives me is impressive; I can push through tough sets without slowing down. This stuff is the real deal.
10% off
Subscribe to Newsletter take 10% off order