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B³ Sciences BFR Bands




  • Please select correct size based on chart below.
  • 2x Arm Bands, 2x Leg Bands, Pump, and Carrying Case Included
  • 12 month warranty
  • Includes Printed Instruction Guide


Size Chart:



What is BFR


Bands are the product of 40+ years of research, ingenuity, experience and over 30,000 real life exercise sessions!


The  Bands are based on a scientific discovery in exercise that uses BFR (Blood Flow Resistance). This process uses the body’s natural systems in combination with light weight-training to produce results that will change the way you work-out forever.


Don’t worry, it is safe. Blood Flow Resistance has been used safely and effectively in Japan for over 40 years!



The  Bands use Blood Flow Restriction training, or BFR. When you wear the  Bands and do light exercise, you create a natural and safe manipulation of the body’s circulatory system.

While doing light exercise with the  Bands on your arms or legs, the blood exiting out of your venous system is slowed down. This reduction in blood flow out of the muscle while doing exercises causes the muscle to fatigue quicker and with a lot less work.

When a muscle fatigues, it creates signals to your brain that results in a surging hormone release. These hormones then trigger any muscles worked to adapt.

This hormone release has many other anti-aging and rejuvenation effects on your Body!


How does it work? 



  • You used to lift heavy weights for 1 hour > Now 20 minutes using light weights with B³ Bands
  • You used to walk 2 miles > Now 1 mile with B³ Bands
  • You used to do 45 minutes of cardio on a treadmill > Now 20 minutes with B³ Bands
  • You used to do an hour aerobics and/or yoga class > Now a 20 minute session with B³ Bands
  • You used to run or bike outdoors for 1 Hour > Now 30 minute with B³ Bands
  • Your Run or Bike outdoors for 1 Hour > Now 30 minute with B³ Bands
  • You used to swim in the Pool for 20 laps > Now 10 laps with B³ Bands
  • You used to do elite athletic training for 45 minutes > Now 20 minutes with B³ Bands
  • You used to do injury rehab for 1 hour every day > Now 30 minute with B³ Bands


Just put the Bands on your legs or arms and:


  • Go for a walk, run or bike
  • Do your favorite cardio exercise or class
  • Do a light weight lifting session on your upper or lower body
  • Walk up and down the stairs in your house for 10 minutes
  • Do a light swim in your pool (YES they are waterproof)

Read the full B3 Band FAQ here.



What Makes B3 Bands Different?

 Learn the difference between B3 BFR Bands and others on the market.


BFR Exercise Physiology



What happens in my body when I use B³ Bands during training?


  • Light exercise with B³ Bands produces a quick and easy muscle fatigue.
  • A fatigued muscle sends a signal to the brain that a metabolic change has occurred. You feel the muscle burn; your brain takes action.
  • The Pituitary Gland releases a rush of Growth Hormone (GH). GH is the most powerful hormone in the body.
  • The body responds to this GH release by secreting other hormones that create positive changes in muscle after exercise.
  • This GH hormone surge also creates a whole host of other health benefits in your body. (Anti-aging, cardiovascular, bone, and many other benefits)
  • Because you have used light weights or have done light exercise, the recovery time will be reduced.

We invite you to read the full Research & Science page by B³ Sciences here.





Ask a Question
  • Are they waterproof or water resistant? Can I use them for swimming?

    Yes, the BFR Bands are water-resistant and can be used while swimming.

  • What is the width of the arm and leg bands?

    It depends on the size of the bands, but the arm bands will average about 1.5 inches in width and the leg bands will average about 3 inches in width.

  • What does 2-3 mean

    The BFR bands come in differing sizes.  The size chart is listed on the product page and the most common sizes are #2-#3.

  • Can you buy multiple size straps?

    We only sell the full set up for the BFR Bands, so we do not have secondary band sizes available separately.  You would have to purchase another complete set.  I apologize for any inconvenience.

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