Add description, images, menus and links to your mega menu
A column with no settings can be used as a spacer
Link to your collections, sales and even external links
Add up to five columns
Please notify me when {{ product }} becomes available - {{ url }}:
Notify me when this product is available:
Note: Only few units left in stock
Take your bulking journey to the next level with RED REX Big Mass Gainer, a powerful extreme high-calorie weight gain supplement designed for hard gainers, athletes, and bodybuilders aiming to maximize size, strength, and muscle mass. This advanced mass gainer delivers very high calories through a perfectly balanced macronutrient profile, helping you easily achieve the daily calorie surplus required for serious muscle growth.
Each serving provides a massive 1290 calories, powered by 265g of carbohydrates to rapidly replenish energy stores and 50g of protein to support muscle repair and growth. With 0g trans fat, RED REX Big Mass ensures clean weight gain while minimizing unnecessary fat accumulation.
Best consumed post-workout, this high-performance formula accelerates recovery, boosts glycogen replenishment, and kick-starts muscle protein synthesis—making it a reliable strategy for achieving fast and visible size gains.
Unlike standard weight gainers that offer moderate calories, RED REX Big Mass is built for extreme mass-building goals. Its high-calorie, high-carbohydrate formula ensures:
If you’re struggling to gain weight or want to bulk faster and stronger, RED REX Big Mass Gainer is the ultimate solution to fuel your muscle-building journey.
Sign up to get the latest on sales, new releases and more …