WPI Protein Water

  • Clear & Refreshing
  • Low Lactose
  • Rapidly digesting protein for optimised absorption

MUSASHI WHEY PROTEIN ISOLATE "WPI" PROTEIN WATER provides ultra-premium quality protein, optimised absorption to support muscle growth and repair.

Size: 900G
Flavours: Watermerlon
The Science

MUSASHI WPI PROTEIN WATER provides ultra-premium quality protein, delivering a potent dose of essential amino acids, and is rapidly digested for optimised absorption to support muscle growth and repair.


HOW - Add 25g (3/4 levelled scoop) to 350mL of cold water in a cup or Musashi shaker and mix until dissolved. Consume immediately.

WHEN - PRE & POST-TRAINING: Use 60-90 minutes prior to exercise or within 30 minutes after sport or resistance training.

Daily - Can be added to water as a refreshing protein top up throughout the day and on non-training days. 

Recommended one-day intake: up to 3 serves.


Watermelon: Whey Protein Isolate (Milk) (97%) [Whey Protein Isolate (Milk), Emulsifier (Sunflower Lecithin)], Flavours, Natural Colour (Beetroot Powder), Sweetener (Sucralose), Salt.

Whey Protein Isolate (Milk) (95%) [Whey Protein Isolate (Milk), Emulsifier (Sunflower Lecithin)], Flavours, Natural Colour (Carotene), Sweetener (Sucralose), Salt.

Contains: Milk

May Contain: Soy

Nutrition Information
Servings per package: 36
Serving size: 25g + 350ml water   
 Per ServePer 100g
Energy399kJ (95Cal)1600kJ (381Cal)
Fat, total0.2g1.0g
  - saturated0.1g0.4g
  - sugars 0.1g0.3g
  - lactose0.1g0.3g
Dietary fibre0.0g0.0g
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At Musashi, every ingredient is purposefully selected. Our commitment to quality ensures that each component serves a specific role, be it enhancing performance, promoting recovery, or supporting overall well-being. Trust in our carefully curated formulations to help you unlock your full potential.

  • Whey Protein Isolate (WPI)

    Whey Protein Isolate is a high-protein, filtered milk product containing very little lactose, fats, and carbohydrates. It is manufactured from cheese whey. It is a complete protein containing all 20 amino acids. It has a higher concentration of amino acids and less calories than WPC.

    • Protein Content: Contains a higher protein content than WPC, usually around 90% or higher. It undergoes additional processing to remove most of the fat and lactose.
    • Other Nutrients: The additional filtration process reduces the amount of beneficial nutrients found in WPI compared to WPC.
    • Digestibility: More suitable for those who are lactose intolerant or have sensitive stomachs, as it contains lower levels of fat and lactose.
    • Taste & Texture: Might have a slightly different texture and taste due to the reduced fat and lactose content. Some users find it to be slightly more watery or less creamy.
    • Complete Protein: Both WPC and WPI are considered complete proteins, meaning they contain all nine essential amino acids.
    • BCAAs: WPI is rich in branched-chain amino acids (BCAAs) which are crucial for muscle growth and recovery.

Musashi works with a team of athletes from a diversity of levels and sports. Our hero athletes compete at the top of their respective codes, and rely on Musashi to provide the proven, trusted, and effective products to give them the edge in their competition and training. These athletes are known as some of Australia’s best in the NRL, AFL, UFC, NBA/NBL and international Soccer.

Musashi also supports an ensemble of up-and-coming, elite, and Olympic athletes that compete in a variety sports and contests, including Rugby, Soccer, Australian Football, MMA, Basketball, and several Distance and Track & Field events. Our products are for all athletes, from all levels and all sports.