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USN B4 Bomb Extreme Pre Workout 300g

Code: 6009706094775
  • £29.99
  • RRP £37.99
Item out of Stock | Usually dispatched within 24 hours
  • All new powerful pre workout from USN
  • Have your best workout yet
  • High caffeine so perfect for an energy boost
  • Improved stamina
  • Increased muscle pumps
  • Aids with muscle recovery


The USN B4-Bomb is a powerful pre-workout beverage from the USN Hardcore Series. 

Available in delicious flavours, the B4-Bomb provides a premium pre-workout aimed at helping you reach new levels and break through your plateau.


An exhilarating pre-workout, formulated to offer you’re a hardcore supplement to support your energy levels and stamina when it counts.

USN’s innovative supplement can also provide the following benefits: 


TeaCrine™ works with the body's natural metabolic processes to deliver longer lasting energy, increase mental clarity and improve mood and motivation.


Protect muscle and increase glucose uptake in the muscle for more power and recovery.


Supports increased strength through enahnced glucose absorption and power/pump. Also supports helps muscle recovery and pump


Formulated for those looking to make the most of their workouts with a hardcore supplement, the B4-Bomb will provide you with an exhilarating pre-workout.


Riboflavin 0.5mg 36% Niacin 30mg 188% Vitamin B6 (As Pyridoxine HCL) 1mg 71% Vitamin B12 (As Methylcobalamin) 6μg 240% Potassium 120mg 6% Phosphorus 116mg 17% XTREME PROPRIETARY BLEND 11075mg L-Citruline, D-Aspartic Acid, Beta-Alanine, Creatine Monohydrate, Caffeine Anhydrous, Advantra Z®, AstraginTM (Panax Notoginseng & Astralagus Membranaceus), Teacrine® (Patent Pending Theacrine) of which Caffeine 270mg


Royal Mail 2nd class tracked service is used for UK deliveries over £20. We will email you with a tracking number for your order. We have found Royal Mail to be the most reliable way to deliver orders.

React Nutrition cannot guarantee exact delivery times, but in most cases the examples above are correct.

Orders received up to 2pm will be dispatched the same day in most cases. Please note, on occasion during busy periods, or if we have to check an address, items may not be dispatched within this timeframe.

For international orders we use Royal Mail or Parcel Force tracked for most orders, and will provide a tracking number. Please note that we are not responsible for local taxes, so please be aware of any import duty that is applicable.

We like to treat people fairly, and any genuine returns will be dealt with quickly. We hope you offer us this same fairness.

Your item must be in its original unused condition to be returned, unless there is a manufacturer defect, or the item is damaged. You must return the item within 14 days of your purchase, and are responsible for posting back to us:

1. In the first instance please email to request a refund giving the reason
2. React Nutrition will then give you delivery details to return the item
3. Include in your package information about the return

Return Exceptions

If an item is opened, and is returned in an unsaleable condition, then we reserve the right to not refund

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