iHerb offers free shipping on orders over $25.

• Artificially Flavored
• 1,220+ Calories Per Serving
• 250g+ Carbs Per Serving
• 40 g Protein Per Serving
• High-Calorie Weight Gainer
• 6:1 Carbohydrate to Protein Formula
• Weight Gain Supplement
• Informed Choice - We Test You Trust
• Banned Substance Tested
• Gluten Free
• Carb10

Better Input = Better Output

The premise for R1 MASS GAINERs simple: to be MASSIVE, you need to go MASSIVE. With more than 1,220 calories, a 250g+ complex carb blend, and 40 grams of protein from three types of whey, this calorie-packed formula provides a 6:1 carb to protein ratio plus over 9 grams of naturally occurring BCAAs & added creatine monohydrate to help fuel your workouts & add size quickly.

R1 Quality Guarantee - Rule One Proteinsommitment To Quality

Since day one, Rule 1 Proteinsas proven that exceptional quality and superior value aren't mutually exclusive. We develop our own products, source the finest ingredients, and manufacture them in an FDA-inspected, GMP-compliant, and Banned Substance Tested facility. Streamlining and tightly controlling every phase of the process, from start to finish, enables us to offer premium products without the premium price.