Clean Protein Gainer

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High-Protein Lean Gain Formula

You already have a decent base, but you want to add mass. Not just any mass, quality mass. Enter R1 Gain – a lean gainer formula with heavy emphasis on protein. 50 grams worth. Unlike mass gainers that focus on total calories, lean gainers take into consideration where the calories are coming from. Fewer carbs. Fewer sugars. More protein. Quality gains.

  • ZERO Creamers
  • ZERO Spiking
  • ZERO Soy Protein


High-Calorie Weight Gain Formula

  • 530 calories *
  • 50g all-whey protein – whey isolate primary protein source*
  • 75g complex carb blend with organic rice bran and Carb 1™ *
  • Packed with BCAAs and other key amino acids*
  • Carefully blended and packaged in an NSF GMP facility in the USA

* Per Serving u Amino acids are naturally occurring and approximated.


Tasty Shakes: Mix two (2) scoops of R1 Gain™ with approx. 14-16 oz. of water, milk or your favorite beverage in a shaker cup or glass with a spoon.

Juicy Smoothies: Add your favorite fruit and ice to the above, mix in blender and enjoy!

Allergen Information

contains Milk, Soy and Wheat.

Chocolate Fudge
Vanilla Creme
Cookies and Creme
What is the difference between a weight gainer and a lean gainer?
Weight gainers are designed for maximum size. Lean gainers contain fewer calories, but provide as much or more protein as weight gainers. Weight gainers are suggested for "hardgainers" with smaller appetites and/or faster metabolisms. Lean gainers tend to be used by athletes that already have a good base and are looking to add size more gradually. Pound for pound, lean gainers are more expensive than weight gainers.
What is the best way to use R1 Gain?
R1 Gain should be combined with a balanced diet and exercise. Use R1 Gain in place of one or more of your daily protein shakes for extra calories. The complex carbs in R1 Gain also help refeed glycogen stores after workouts.
How does R1 Gain differ from R1 LBS?
R1 Gain is higher in protein and contains fewer calories and carbohydrates than R1 LBS. R1 Gain is considered a lean gainer. R1 LBS is a traditional weight gainer with over 1,000 calories.

8 Reviews

  • 4


    Posted by Bino on May 21st 2018

    Everyone saw results and wanted to know what I was taking. It tastes great too

  • 4

    On the product

    Posted by Nicolas Fernandez on Mar 6th 2018

    Good protine to gain size just do cardio or you'll get fat.

  • 5

    Perfect Gainer

    Posted by Krzysztof on Feb 2nd 2018

    What more could you ask for?

  • 4

    R 1 GAIN

    Posted by Unknown on Jan 15th 2018

    Great taste, mixes well with no clumping

  • 4

    Rule 1 Gain

    Posted by Aaron on Oct 3rd 2017

    I've only just started taking the product, so I can't really judge on much of its effective. I can say that the taste is fantastic for such low sugar and sodium. The consistency of the mixture is also better than many of the high brand products I've tried

  • 5

    R1 GAIN

    Posted by Arnold Rivera on Aug 28th 2017

    This is a legit product. For those that are concentrating in gaining muscle, not FAT and muscle like what you get from other products.

  • 5

    R1 gainer

    Posted by Rodrigo Pichardo on Aug 7th 2017

    Incredible product , amazing protein blend, good taste , good mixing, and top quality ingridients. Definitely a Go to when trying to bulk without getting those extra pounds of fat. Even better the conpany gives free samples on order very customer oriented love it!!

  • 5


    Posted by Jack on Aug 4th 2017

    Finally made the switch from optimum nutrition and starting to see some girth to my muscles. Gainz time