UNLEASH

THE

BERSERKER

Strawberry Lemonade Now Available

475mg Caffeine | Massive Pumps | Locked-in Focus

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FREE SHIPPING ON ALL ORDERS OVER $50

WHY HOLLOW LABS

Transparent Labels, Expert Crafted Formulas

Hundreds of 5-Star Raving Reviews

Made in the United States of America

Ships Daily

Scientifically Dosed, Clinically Backed Ingredients

Community-Driven Brand With a Growth Mindset

DISCOVER BY CATEGORY

PRE-WORKOUT

PRE-WORKOUT

Crush workouts with explosive energy, sharp focus, and zero crash.

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INTRA-WORKOUT

INTRA-WORKOUT

Fuel endurance, boost hydration, and stay strong through every last rep.

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POST-WORKOUT

POST-WORKOUT

Recover faster, rebuild stronger, and refuel right after every session.

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WELLNESS

WELLNESS

Support daily health, boost immunity, and feel your best every day.

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FAN FAVORITE PRODUCTS

"THIS IS WORTH EVERY PENNY"

Since starting using berserker serum, my focus and workouts have never been better! This is worth every penny!

– Emily R, Verified Customer

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