Berserkr Frenzy
Berserkr Frenzy
Berserkr Frenzy
Berserkr Frenzy
Berserkr Frenzy

Backed By
Scientific Research

100% Money-back
Guarantee

Backed By
Scientific Research

100% Money-back
Guarantee

"This pre-workout gives me a noticeable pump and faster recovery between reps. Heavy sets feel easier to bounce back from. Honestly, I think it’s the strongest pre on the market—great value and packed with the right ingredients to push your limits. Norse Fitness nailed this formula."

Wesley M.

1000s of Happy Customers

Stay Sharp. Push Past Limits. Recover Strong.

Berserkr Frenzy delivers clean, relentless energy, sharp focus, and endurance that holds up under pressure. No crash. No jitters. Just clinically backed ingredients like PeakO₂®, Alpha GPC, and smart release caffeine working together to keep you locked in and performing at your best.
Flavor

Secure Checkout

"This pre-workout gives me a noticeable pump and faster recovery between reps. Heavy sets feel easier to bounce back from. Honestly, I think it’s the strongest pre on the market—great value and packed with the right ingredients to push your limits. Norse Fitness nailed this formula."

Wesley M.

How It Works

Activate The Berserkr Frenzy

1

Scoop & Mix

Take 1–2 scoops of Berserkr Frenzy and mix with water 15–30 minutes before training.

2

Fuel the Frenzy

The ingredients start working fast. Performance mushrooms boosts oxygen capacity, nootropics sharpens focus, and the caffeine matrix dials in clean energy.

3

Crush Your Limits

Your focus is steady. Endurance holds. You drive through heavy sets without crashing, and finish stronger than you started.
Get Mine Now

Secure Checkout

Built for Consistent Output, Laser Focus, and Real Results

Controlled Power & Mental Sharpness

No jitters. No crash. Only smooth, sustained drive and unbreakable concentration from your first set to your final rep. Powered by Alpha GPC, enXtra®, and smart-release caffeine.

Endurance That Doesn’t Quit

PeakO₂® and beta-alanine work to extend stamina and delay fatigue—so you can lift longer, train harder, and stay sharp through the entire session.

Engineered for Volume and Recovery

6g citrulline and GlycerSize™ boost blood flow, hydration, and muscle volume so every set feels stronger, your recovery stays tight, and the pump keeps building.

"Every time I take Berserkr Frenzy, I get a solid workout. It’s balanced—great focus, strong pumps, and consistent endurance. I’ve recommended it alongside other Norse Fitness products and have never been disappointed. Reliable, effective, and delivers exactly what I need in the gym."

Dan D.

Why Choose Berserkr Frenzy?

Here's what you get in each serving:

Clarity Under Pressure

Stay mentally sharp and locked in even when fatigue sets in.

Oxygen-Fueled Endurance

Boost endurance, oxygen use, and recovery with PeakO₂® mushrooms for longer, stronger training.

Clean Power That Lasts

Clean energy that hits fast, lasts long, and won’t leave you crashing.

Blood Flow That Performs

Increase blood flow and hydration for fuller reps and faster recovery between sets.

View full ingredients

  • Organic Greens

  • Powerful Mushrooms

GLYCERSIZE®

Boosts muscle hydration, cell volume, endurance, and nutrient uptake.
Title

PEAKO2®

Adaptogenic mushroom blend that increases power, endurance, and stress resilience.
Title

COGNATIQ®

Enhances brain function, memory, and higher thinking through increased BDNF.
Title

ENXTRA®

Improves focus, mental alertness, and task-specific attention.
Title

ZÜMXR CAFFEINE®

Extended-release caffeine for smooth energy without crashes.
Title

CAFFEINE ANHYDROUS

Concentrated caffeine for enhanced stimulation and mental drive.
Title

ALPHA-GPC

Boosts cognitive function, power output, and growth hormone secretion.
Title

L-CITRULLINE

Increases nitric oxide for better blood flow, endurance, and reduced fatigue.
Title

BETA-ALANINE

Improves exercise capacity, reduces muscle fatigue, and supports recovery.
Title

L-TYROSINE

Enhances focus, motivation, memory, and stress management.

Cordyceps

Increases energy, endurance & stamina by enhancing oxygen flow - a natural booster for intense workouts.
Title

Reishi

Supports stress management & hormone balance, strengthens immunity with polysaccharides - ideal for workouts & wellness.
Title

King Trumpet

Lowers cholesterol, aids weight loss, may reduce cancer risks, antiviral & supports bone health - a versatile choice.
Title

Shiitake

Rich in copper for healthy blood vessels, bones & immunity.
Title

Lion's Mane

Improves anxiety, cognitive function & depression by aiding neural pathways - boosts mental sharpness & balance.
Title

Turkey Tail

Strengthens immune response & manages inflammation at cellular level - promotes gut health.
Get Mine Now

Secure Checkout

What Real Lifters Are Saying About Berserkr Frenzy

See how heavy hitters are breaking plateaus, staying sharp, and recovering fast.

Casey C.

Verified Customer

"One of the best pre-workouts I’ve used. Effects hit fast, keeping me laser-focused even in busy gyms. Recovery is shockingly smooth with no soreness, and there’s no crash like other supplements. The clean formula makes a huge difference. A top choice for anyone wanting peak gym performance."

Tyler C.

Verified Customer

"Berserkr Frenzy gave me a huge boost over other pre’s. I lifted heavier, added sets, and saw less post-workout soreness. Paired with Norse creatine, I noticed muscle gains. Best of all, it doesn’t upset my stomach like other products. Total game-changer that keeps me locked in."

Mike P.

Verified Customer

"Berserkr Frenzy gave me intense energy, sharp focus, and no jitters. I broke strength plateaus, boosted endurance, and recovered faster. The mental focus kept me hungry for more sets. It’s hands down my favorite pre-workout — great benefits, amazing flavor. Highly recommend it."

Andy A.

Verified Customer

"When I’m tired, Berserkr Frenzy fires me up. When I’m already amped, it elevates my energy even more. I’ve gotten hooked and now use it before every workout. It gives me serious energy, aggression, and focus. I’ve already recommended it to several gym friends."

Branden N.

Verified Customer

"Berserkr Frenzy transformed my early workouts. I saw stronger pumps, better circulation, and huge endurance gains, letting me push harder for longer. The focus boost is critical, especially in morning sessions. Compared to other stimulant pre-workouts, this one boosts performance and endurance without typical downsides."

Josh C.

Verified Customer

"Perfect caffeine balance—just enough energy without jitters or crash. Improved my endurance and left me feeling energized post-workout. I stayed sharply focused, ignoring distractions from work or life. Tastes great and delivers strong, clean energy to power through workouts. I’d easily recommend this to friends."
See all reviews

Built Different for Performance

See how Berserkr Frenzy stacks up when results actually matter.

Compare

Others

Performance Mushroom Blend

Clinically Dosed Nootropics

Crash-Free Energy

Stress-Resilient Formula

Full Label Transparency

Results or Your Money Back
Get Mine Now

Secure Checkout

Have questions?
We have answers!

How is Berserkr Frenzy different from other pre-workouts?

Most pre-workouts are just a ton of caffeine packed into a flashy tub. You get a quick rush, maybe some tingles, then crash hard an hour later. Berserkr Frenzy is about performance. You get clean energy, real focus, and ingredients like PeakO₂® mushrooms and Alpha GPC that actually help you train harder and recover faster. No crash, no jitters, and nothing hidden on the label. Just a formula that works like it’s supposed to.

Will it make me feel jittery or anxious like other high-stim pre’s?

No it won't make you feel anxious and that’s one of the biggest reasons people switch to Berserkr Frenzy. Instead of just blasting you with caffeine, we use a smart combo of fast-acting and extended-release energy, plus ingredients like enXtra® and Alpha GPC to keep you focused without feeling wired or overstimulated. You’ll feel alert, locked in, and ready to train but without the shaky hands or racing heart.

How fast does it kick in, and how long does it last?

Most people start feeling it within 10 to 15 minutes. You’ll notice the energy build fast (but smooth), and your focus start to dial in. The best part is that it doesn’t drop off halfway through your workout. The formula is designed to last from warm-up to your final set, without fading out or leaving you drained afterward.

Will I crash afterward or feel drained later in the day?

Nope, and that’s a big part of why people stick with Berserkr Frenzy.
The energy hits fast but stays steady, thanks to the combo of smart-release caffeine and ingredients like enXtra® that help smooth everything out. You’ll still have energy and mental clarity hours later, without that wired-then-wrecked feeling most pre-workouts leave you with.

Is it safe to stack this with other supplements?

Absolutely. Berserkr Frenzy pairs well with other staples like creatine, electrolytes, BCAAs, and even pump products if that’s your thing. It’s designed to be the foundation of your training stack that is clean, effective, and without anything that would mess with your other supplements.

Do I need to cycle off Berserkr Frenzy?

Not unless you’re running a bunch of other high-stim products. Berserkr Frenzy uses a balanced blend of fast and sustained-release caffeine, plus ingredients like PeakO₂® and Alpha GPC that actually work better with consistent use. Most people can take it daily without an issue, but if you ever feel your tolerance creeping up, taking a short break is always a smart move.

What if it doesn’t work for me?

Then you don’t pay for it. Seriously. If you try Berserkr Frenzy and it doesn’t hit the way you expected, whether it’s energy, focus, or just overall feel, just reach out and we’ll make it right. No hassle. No hoops. We back this formula because it actually delivers.

Backed By
Scientific Research

100% Money-back
Guarantee

1000s of Happy Customers

Train Harder. Stay Focused. Recover Faster.

Berserkr Frenzy delivers clean energy, cognitive precision, and output that holds up under pressure. No crash. No jitters. No crash. Just a well-rounded formula designed to elevate your training and help you keep stacking victories.
Get Mine Now

Secure Checkout

"With Berserkr Frenzy, I had steady energy during tough lifts and sharper focus even at my desk job. It tastes awesome, and I’m a believer in mushrooms for health and gym performance. It kept me dialed in, both inside and outside the gym. Highly recommend it."

Tyler M.

1000s of Happy Customers

Train Harder. Stay Focused. Recover Faster.

Berserkr Frenzy delivers clean energy, cognitive precision, and output that holds up under pressure. No crash. No jitters. No crash. Just a well-rounded formula designed to elevate your training and help you keep stacking victories.
Get Mine Now

Secure Checkout

"Adding this to my morning routine has improved my energy levels throughout the day, and I feel so much better."

Johnny M

Backed By
Scientific Research

100% Money-back
Guarantee

Backed By
Scientific Research

100% Money-back
Guarantee

"With Berserkr Frenzy, I had steady energy during tough lifts and sharper focus even at my desk job. It tastes awesome, and I’m a believer in mushrooms for health and gym performance. It kept me dialed in, both inside and outside the gym. Highly recommend it."

Marcus L.