Reflex Instant Mass Heavyweight Chocolate 2400g Powder Wait, don't go! Free delivery on orders over £20 £39.99

Select Strength, Flavour or Colour:

Select Size:


  • Special weight gaining formula to maximise muscular weight gain
  • Ideal for 'hardgainers' - those who struggle to put on muscle
  • Each serving contains 50g of complex carbohydrates, 52g of whey protein, & micellar casein
  • Loaded with glutamine and 18 vitamins & minerals

Reflex Nutrition Instant Mass is a special weight gaining formula specifically designed to maximise muscular weight gain and minimize body fat storage whilst gaining weight. Instant Mass offers maximum muscle gain with minimum fat gain.

Ideal for 'hardgainers' - those who struggle to put on muscle - Instant Mass supplies adequate calories and protein to put the body in a truly anabolic, muscle-building state.

Each serving of Instant Mass contains a special blend containing 50 grams of complex carbohydrates from Activated Barley and Organic Oats, 52 grams of Whey Protein and Micellar Casein.

Ratings & Reviews

The views expressed below are the opinion of Holland & Barrett customers. Holland & Barrett does not endorse these views, nor should they be regarded as health claims or medical advice. Find out more

  • bvseo_sdk, java_sdk, bvseo-4.0.0
  • CLOUD, getContent, 0ms
  • bvseo-msg: EXECUTION_TIMEOUT is set to 0 ms; JavaScript-only Display.