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R1 Mass Gainer by Rule 1 Proteins

4.5
Rated 4.5 out of 5 stars
4 Reviews
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  • Over 1,200 calories per serve
  • Clean formula, no banned substances
  • 6:1 carb-to-protein ratio

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Why not add some creatine?

Multiple benefits in a single scoop - complements every stack

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Evidence-Backed Benefits
Add Creatine to every stack

Multiple benefits in a single scoop - complements every stack

Creatine supporting strength and power performance Creatine promoting muscle growth and faster recovery Creatine enhancing overall energy and training performance

Boost Strength & Power

Perform more reps, lift heavier weights, and maximise training performance

ENHANCE BRAIN POWER & MEMORY

Improves cognitive performance, reaction time, and working memory

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Description

R1 Mass Gainer by Rule 1 Proteins

If you're struggling to meet your daily calorie needs through food alone, R1 Mass Gainer by Rule 1 Proteins is here to help support your fitness and size goals. With a powerful 6:1 carbohydrate-to-protein ratio and over 1,200 calories per serving, it’s designed for individuals looking to increase mass and fuel intense training.

Each serve delivers 40g of protein from a blend of three whey protein sources and more than 250g of carbohydrates, making it an ideal solution for hard gainers or anyone seeking nutritional support for strength and size. Free from soy protein, creamers, and banned substances, R1 Mass Gainer by Rule 1 Proteins offers a clean and trusted formula to help elevate your nutrition plan.

Benefits of R1 Mass Gainer by Rule 1 Proteins:

  • 1,220 nutrient-rich calories per serve
  • Delivers 40g of premium protein from three whey sources
  • 6:1 carb-to-protein ratio supports energy and growth
  • No soy protein, creamers, or amino spiking
  • Tested for banned substances – ideal for natural athletes
  • Complements high-calorie meal plans and intense workouts
  • Available in a range of indulgent flavours for easy consumption

Is R1 Mass Gainer suitable for everyday use?
Yes, it can be taken daily as part of your training and nutrition routine to help you meet your calorie and protein needs.

Does this product contain any banned substances?
No, R1 Mass Gainer by Rule 1 Proteins is free from banned substances, making it a suitable option for competitive athletes.

If you need extra support to push past a growth plateau or simply want to enhance your intake between meals, R1 Mass Gainer by Rule 1 Proteins is a convenient and reliable choice to back your training efforts.

Directions

Mix two heaped scoops of R1 Mass Gainer with water or milk and consume post-workout or between meals to support increased calorie intake. Do not use as a meal replacement. This product is intended for healthy adults; always read the label, use only as directed, and seek medical advice if unsure.

Ingredients

12lbs / Chocolate Fudge
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Vanilla Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Chocolate Peanut Butter
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Cookies & Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Strawberries & Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

Warning

This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and an appropriate training or exercise program. Not suitable for children under 15 years of age or pregnant women: Should only be used under medical or dietetic supervision.

Shipping and Delivery

Orders placed before 3PM AEST, Monday to Friday (not including Public Holidays), will be shipped the same day! Once your payment clears and despatch information is available we'll email you an order tracking number. Most customers receive their supplements in 1-2 business days! As long as:

  • You order before 3pm (AEST) Mon-Fri
  • You use a payment method with instant clearance, like Paypal Instant Payment or Credit Card
  • Your parcel is less than 5kg in cubic weight. (Some bulky goods will not apply)
  • You are not in a remote location

Please note parcels going via Australia Post (PoBox, Defence Adresses) may take longer than 1-3 business days.

Parcels going to NT, and bulky parcels going to WA may take 5+ business days to arrive.

If your order weighs more than 5kg or is bulky: Heavy or bulky orders are sent via road freight which means that the estimated delivery time will be longer than orders sent via air freight.

If you have used an alternate payment method: Direct bank deposit or Paypal Echeque may take some time to clear. To get your supplements in the shortest time possible, use Paypal's Instant Payment or a credit card.

Shipping Policy
More Information

R1 Mass Gainer by Rule 1 Proteins

If you're struggling to meet your daily calorie needs through food alone, R1 Mass Gainer by Rule 1 Proteins is here to help support your fitness and size goals. With a powerful 6:1 carbohydrate-to-protein ratio and over 1,200 calories per serving, it’s designed for individuals looking to increase mass and fuel intense training.

Each serve delivers 40g of protein from a blend of three whey protein sources and more than 250g of carbohydrates, making it an ideal solution for hard gainers or anyone seeking nutritional support for strength and size. Free from soy protein, creamers, and banned substances, R1 Mass Gainer by Rule 1 Proteins offers a clean and trusted formula to help elevate your nutrition plan.

Benefits of R1 Mass Gainer by Rule 1 Proteins:

  • 1,220 nutrient-rich calories per serve
  • Delivers 40g of premium protein from three whey sources
  • 6:1 carb-to-protein ratio supports energy and growth
  • No soy protein, creamers, or amino spiking
  • Tested for banned substances – ideal for natural athletes
  • Complements high-calorie meal plans and intense workouts
  • Available in a range of indulgent flavours for easy consumption

Is R1 Mass Gainer suitable for everyday use?
Yes, it can be taken daily as part of your training and nutrition routine to help you meet your calorie and protein needs.

Does this product contain any banned substances?
No, R1 Mass Gainer by Rule 1 Proteins is free from banned substances, making it a suitable option for competitive athletes.

If you need extra support to push past a growth plateau or simply want to enhance your intake between meals, R1 Mass Gainer by Rule 1 Proteins is a convenient and reliable choice to back your training efforts.

Mix two heaped scoops of R1 Mass Gainer with water or milk and consume post-workout or between meals to support increased calorie intake. Do not use as a meal replacement. This product is intended for healthy adults; always read the label, use only as directed, and seek medical advice if unsure.

12lbs / Chocolate Fudge
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Vanilla Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Chocolate Peanut Butter
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Cookies & Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

12lbs / Strawberries & Creme
NUTRITION INFORMATION Per Serve (325 g)
Calories 1260
Total Fat 8 g
 Saturated Fat 4 g
Cholesterol 160 mg
Total Carbohydrate 254 g
 Dietary Fibre 7 g
 Total Sugars 14 g
  Includes Added Sugars 10 g
Protein 40 g
Calcium 360 mg
Sodium 350 mg
Potassium 1240 mg
Additional Ingredients
Creatine Monohydrate 1 g

Other Ingredients – Carbohydrate Blend (Maltodextrin, Organic Rice Bran, Pea Starch [Carb10β„’]), Protein Blend (Whey Protein Concentrate, Whey Protein Isolate, Whey Protein Hydrolysate), Cocoa (Processed with Alkali), Natural and Artificial Flavours, Lecithin, Guar Gum, Sucralose, Acesulfame Potassium, Stevia Leaf Extract.

Contains – Milk and Soy.

Nutrition information is intended as a guide and may vary slightly between flavours or over time. While we strive for accuracy, small differences can occur. For specific details on a particular flavour, please contact customer service.

Warning

This product is not a sole source of nutrition and should be consumed in conjunction with a nutritious diet and an appropriate training or exercise program. Not suitable for children under 15 years of age or pregnant women: Should only be used under medical or dietetic supervision.

Orders placed before 3PM AEST, Monday to Friday (not including Public Holidays), will be shipped the same day! Once your payment clears and despatch information is available we'll email you an order tracking number. Most customers receive their supplements in 1-2 business days! As long as:

  • You order before 3pm (AEST) Mon-Fri
  • You use a payment method with instant clearance, like Paypal Instant Payment or Credit Card
  • Your parcel is less than 5kg in cubic weight. (Some bulky goods will not apply)
  • You are not in a remote location

Please note parcels going via Australia Post (PoBox, Defence Adresses) may take longer than 1-3 business days.

Parcels going to NT, and bulky parcels going to WA may take 5+ business days to arrive.

If your order weighs more than 5kg or is bulky: Heavy or bulky orders are sent via road freight which means that the estimated delivery time will be longer than orders sent via air freight.

If you have used an alternate payment method: Direct bank deposit or Paypal Echeque may take some time to clear. To get your supplements in the shortest time possible, use Paypal's Instant Payment or a credit card.

Shipping Policy
4.5
Rated 4.5 out of 5 stars
Based on 4 reviews
Total 5 star reviews: 3 Total 4 star reviews: 0 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
75%would recommend this product
Rating
Ratings
Write a Review (Opens in a new window)
4 reviews
  • CK
    Chris K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Mass Gainer

    Good quality well priced

    TasteRated 5.0 on a scale of 1 to 5
    TextureRated 5.0 on a scale of 1 to 5
    Value for moneyRated 5.0 on a scale of 1 to 5
    Was this helpful?
  • DE
    Dan E.
    Verified Buyer
    Rated 3 out of 5 stars
    1 year ago
    Expensive

    Overall a good tasting high quality mass gainer. But with only 8 servings it’s super expensive for what you get.

    Was this helpful?
  • VD
    Vu D.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Delicious and effective

    Worth the value, highly recommended

    Was this helpful?
  • AT Profile picture for Andrew T.
    Andrew T.
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    10/10

    Accidentally ordered strawberry and cream but Gotta say it’s actually really good. Great to put on weight skull the 1200cal before bed. Put on 5kg just from one bag. Copping another load soon

    TasteRated 5.0 on a scale of 1 to 5
    TextureRated 5.0 on a scale of 1 to 5
    Value for moneyRated 5.0 on a scale of 1 to 5
    Was this helpful?
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