Growtein™ Lean Mass Gainer

(15 reviews) Write a Review
  • Growtein™ Lean Mass Gainer
  •  30 Grams of protein per serving
  • 45 servings per bag

  • Choose from 4 delicious flavors

  • Also includes, BCAA, L-Glutamine and Creatine Monohydrate 

Supplement facts & flavors

Candy Bar Blitz


Oatmeal Cookie


More Gain. Less Pain.


Growtein™ is a Whey Protein Isolate (WPI) & Whey Protein Concentrate (WPC) blend that has been the keystone recovery protein of our most competitive and extreme athletes for over a decade! Our lean mass gaining formula hosts not only a high-quality protein source that absorbs at different rates in the body but we've also included Creatine Monohydrate, BCAA's and L-Glutamine. Putting your muscles in the perfect environment to recover and grow, getting you back in the gym faster.

Growtein is 4 products in 1!


We took our best-selling protein, Whey Superior, added BCAA's, L-Glutamine and Creatine Monohydrate, and made the best lean-mass building product on the market. We've covered every angle from muscle recovery to replenishing muscle energy expenditure... Growtein truly has it all

Suggested use: Shake or mix 1 serving into 8-10 oz of water until completely blended.


For a delicious milkshake consistency, use 6-8 oz of liquid for a thicker consistency

15 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Kate on Nov 18th 2015

    Most women are afraid of the Growtein, but the staff at JBN made me realize its the PERFECT protein for the type of training I do. (Kick boxing, Crossfit and Spin) They explained how the creatine is the perfect amount to replenish what my body was depleted of! I have been taking it for about 2 months and FEEL amazing.

  • 5

    Posted by Kyle on Aug 25th 2015

    If you are looking to actually put on some lean muscle mass and not deal with the fatty lower bloat other products give you then Growtein is where it's at. Candy Bar Blitz is hands down the greatest flavor of all time. Highly recommend for everyone looking to put on some size!

  • 5

    Posted by Carlos on Jun 12th 2015

    Growtein has a very good taste and you can't beat the price for everything that's included in this product. Recommend for all!

  • 5

    Posted by Jenny on Jun 5th 2015

    So happy with Growtein! Chocolate taste amazing and my body feels the difference.

  • 5
    Lean Mass

    Posted by George on May 27th 2015

    Without a doubt the BEST MASS BUILDER on the market!!! NO FILLERS BINDERS protein ,creatine bcaa's and glutamine. Perfect as I built mass for the summer beach season. Price+flavor = JBN perfection

  • 5
    Great product!

    Posted by Shawn on Apr 24th 2015

    A friend recommended I try out JBN protein. First off, i was greeted with open arms by the employees, and also to free samples. Each and every staff member seemed very knowledgeable of all JBN products. I purchased the Vanilla Growtein. Tastes much better than most proteins I've come across. I will refer all my friends, and I will definitely be back to try other prodcuts.