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Extreme Mass

Extreme Mass

Regular price $67.99 USD
Regular price Sale price $67.99 USD

Reach your full muscle-building potential with a clean and delicious mass gainer loaded with premium protein and carb sources. Learn More

Extreme Mass
Regular price $67.99
Regular price Sale price $67.99

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SKU: 25501
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Ultra-premium mass gainer for extreme muscle growth and recovery.

  • 650 calories, 53g protein, 100g carbs, and 6g fat in a delicious and filling shake
  • Clean profile containing 12g BCAAs to support muscle growth
  • Helps to more easily achieve your daily caloric needs without the added junk
  • Improves muscle recovery following intense training sessions
  • Minimizes muscle tissue breakdown to preserve your hard-earned mass


There are mass gainers, and then there’s NutraBio Extreme Mass. What sets this mass gainer apart from the competition is its clean formula that provides you with everything you need and nothing that you don’t — helping you add the quality size you want during your bulk without the additional body fat.

NutraBio Extreme Mass gainer uses two premium protein sources to help you reach your daily intake — whey protein concentrate (WPC80) and micellar casein. This one-two protein punch provides you with an immediate source of amino acids while also providing a sustained release for upwards of seven hours. Not only will Extreme Mass help you add lean muscle mass and improve recovery, but it can also aid in muscle preservation and prevent the breakdown of your hard-earned muscle.



It’s quite easy to consume everything in sight to put yourself in a caloric surplus. Unfortunately, the foods you choose could cause you to add more body fat than lean muscle. NutraBio Extreme Mass solves this issue by providing you with an ultra-clean mass gainer loaded with 53g of premium protein and 100g of quality carbs. Best of all, Extreme Mass is low in sugar, setting the industry standard for what a mass gainer should look like.


Extreme Mass combines fast-absorbing whey protein concentrate (WPC80) with slow-absorbing micellar casein in a 70:30 ratio. On the one hand, you have whey protein concentrate that leads to a rapid spike in amino acid levels to kickstart the recovery process and spark new muscle growth. Then, on the other hand, you have micellar casein, which tends to have a more anti-catabolic effect and a much longer and steady release of amino acids for upwards of seven hours.


An area that truly sets NutraBio Extreme Mass apart from the typical mass gainer is its Clean Carb Technology. Our maltodextrin isn’t what you expect to find in a standard mass gainer. Rather than using cheap maltodextrin, we used patented Fibersol-2®, which is a digestive-resistant maltodextrin that won’t cause a massive spike in blood sugar. The use of Fibersol-2® not only helps prevent the conversion to fat but also enhances glycogen replenishment and slowly breaks down glucose over a two-hour period to supply the body with a controlled, time-released, and continuous source of energy.


The combination of whey protein concentrate (WPC80) and micellar casein can lead to greater increases in lean muscle mass and shorter recovery times compared to when ingested separately. Even more impressive is that recent scientific evidence suggests that the proteins used in our mass gainer may boost IGF-1 (insulin-like Growth Factor), which helps the body burn fat and build muscle. If muscle growth is what you’re after, NutraBio Extreme Mass can help you pack on the added size you’re looking for.


Whey Protein Concentrate: This high-quality WPC80 is CFM cross-flow micro- and ultra-filtered to provide a clean and instantized whey protein concentrate that is easily digested and helps provide the muscles with the amino acids needed to support lean muscle growth and recovery.

Micellar Casein: This is another form of protein that is derived from milk. Only this specific source is known as a slow-digesting protein, meaning that it releases amino acids into the bloodstream at a much slower rate than other types of protein. Due to its slow release, micellar casein is a popular choice for use before bed, as it can provide a sustained release of amino acids to support muscle recovery and growth during sleep when normally you would be in a fasted state, and catabolism may set in. Micellar casein is also commonly used in protein blends to help individuals stay full longer and extend the release of amino acids to support muscle recovery and growth.

Maltodextrin: Made from vegetable starch, this ingredient is commonly used as a low-calorie sweetener.

MCT Coconut Powder: This medium-chain triglyceride is more easily digested when compared to other fat sources. This healthy fat is known for its ability to support a healthy weight, energy production, lactate reduction, and blood sugar management.

Digestive-Resistant Maltodextrin (Fibersol2®): A patented prebiotic fiber that can help improve satiety, increase soluble fiber intake, and better manage blood sugar levels.

How to Use

How to Use

Consume 1-4 scoops depending on your calorie and protein requirements. For each scoop, add 4-6 ounces of cold water, milk, or your favorite beverage to a shaker cup or blender and mix for 30-40 seconds. Vary the amount of liquid to meet your desired taste and consistency. Using nonfat milk instead of water will give you a thinker, creamier shake.
Dietary Restrictions

Dietary Restrictions



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