Weight & Mass Gainers Online Australia

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3kg protein powder

MAXS Absolute MASS

RRP: $89.95 - $139.95

5kg protein powder

Optimum Nutrition Serious Mass

RRP: $89.95 - $149.95

3kg protein powder


RRP: $99.95 - $159.95
RRP: $89.95 - $159.95
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Chocolate Protein Powder

Rule 1 R1 GAIN

RRP: $119.95 - $169.95
RRP: $119.95 - $209.95
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Protein Powder Online Australia


RRP: $99.95 - $119.95
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Protein Powder Online Australia

GEN-TEC Pro Mass Weight Gainer

RRP: $109.95

Chocolate Protein Powder

Rule 1 Clean Gainer

RRP: $119.95 - $179.95

Protein Powder Online Australia

Prana ON Natural Mass

RRP: $84.95 - $159.95
Out of stock

Protein Powder Online Australia

Rule 1 R1 LBS

RRP: $89.95 - $139.95

5kg protein powder

Rule 1 R1 Mass Gainer

RRP: $89.95 - $129.95
Out of stock

Protein Powder Online Australia

Magic Sports Nutrition Mass

RRP: $124.95

Peanut Butter Protein Powder

BSN True-Mass 1200

RRP: $149.95

Best Protein Powder For Muscle Gain

JD Nutraceuticals Platnium Gainz

RRP: $89.95
Out of stock

Protein Powder Online Australia

ProSupps IncrediBULK

RRP: $84.95 - $124.95

Mass Gainers

What is a Mass Gainer?

A mass gainer is a type of protein supplement that usually contains whey protein as well as extra ingredients to increase the overall calorie content. Mass gainers are often high-calorie supplements which will be high in carbohydrates as they are made for people are struggling to consume sufficient calories through whole foods. These products can vary in the amount of calories they contain. Some products will provide a 400-500 calorie bump that might help someone break a plateau. Other products may contain as much as 1000 calories in one serving and these are popular amongst hard gainers. If the world of mass gainers has confused you in the past, read this article and your questions will be answered!

Who Should Use a Mass Gainer Supplement?

Weight gainers are mainly made for people are struggling to eat enough calories and therefore require an easier way to put themselves into a calorie surplus. Whether you are male or female, a weight gainer shake could be indicated. If you are trying to gain muscle mass or weight in general, you will need to eat sufficient calories in order to be in a calorie surplus. Most people are able to achieve this through eating whole foods however there are individuals who cannot achieve this. People with fast metabolisms or poor appetites cannot eat enough to put themselves into a surplus and this is where true mass gainers come into their own. Mass gainers contain more protein and extra calories compared to regular whey protein which makes them perfect for anyone looking to gain weight.

If you suffer from diabetes, the carbohydrate content in these products may not be appropriate for your consumption. It is important to consult a healthcare professional if you have specific dietary requirements.

Shop mass gainer protein by diet

We have mass gainers to match all dietary requirements – check out our different ranges below.

Shop mass gainer protein by flavour

Browse our different mass gainer flavours.

Common Mistakes Using Mass Gainers

Replacing Meals with Shakes

Some people who are wanting their calorie intake to support growth gravitate to a diet that involves too many shakes. It is important to maintain a healthy balance between whole food intake and use of mass gainer protein powders. If you simply use shakes to replace all your meals, you will end up right back where you started and thus you may still not be in a calorie surplus. It is our recommendation that you add your gainer shake into your normal food choices. This way you will infect increase your total calories whilst maintaining a balanced diet.

Using Water Over Milk

Many people mix their whey protein concentrate powder with cold water which is perfectly fine, because often those individuals are trying to keep calories low whilst getting enough protein. However if you are using a mass gainer, the goal is increase your daily calories in order to support muscle growth. For this reason, it is a good idea to use milk over water as it will include more calories overall as well as some healthy fats.

How Can Mass Gainers Increase Muscle Mass?

If you want to build muscle, you need to be in a calorie surplus. Mass gainers contain plenty of calories per serving and help many people get into a calorie surplus which is crucial for building lean muscle. Gainer shakes are often a great protein source and contain the necessary amino acids to spike muscle protein synthesis (MPS). Countless peer reviewed studies have drawn useful links between activation of MPS and muscle gain. Heavy training in the gym and consuming adequate protein are two ways we can activate this pathway.

Mass Gainer vs. Whey Protein Isolate

What do they have in common?

  • Both are high in protein
  • Both come in a range of flavours
  • Both support muscle gain and recovery

How are they different?

  • Gainers are high in carbohydrates whereas WPIs contain as few carbohydrates as possible
  • WPIs are very low in fat, whereas gainers often have a healthy fat source included

Are there any Vegan Mass Gainers?

Yes! Vegan mass gainer supplements are available from Power Supps and they are just as effective for building mass as other mass gainers. Vegan meal replacement shakes often use carb sources like oats and sweet potato. They often use a blended protein base (brown rice protein is the most popular) which includes a range of plant-based sources which ensures the protein works in the same way as its whey counterpart. Many companies that make van products have strict sourcing guidelines and they focus on using primarily natural ingredients. It is important to have some healthy fat sources in these products too such as medium chain triglycerides. Gaining weight and increasing muscle size is well and truly on the cards even if you are following a vegan diet!

When You Shouldn’t Use a Mass Gainer

If you are trying to lose body fat, using a gainer is often not indicated because you will need to be in a calorie deficit. During dieting phases, you will likely want to limit the amount of liquid calories you are consuming, so it would be better to opt for a whey protein isolate than a gainer. Gainers will contain a high amount of calories per serving which is not ideal for something looking to drop body fat.

Our Top 5 Mass Gainer Supplements

Optimum Nutrition Serious Mass

As the name suggests, this product is for someone looking to gain some serious mass! This product is one of the best mass gainer supplements, packing more than 1000 calories per serving. Optimum Nutrition have also taken the liberty of including 3g of creatine monohydrate per serving which sets this product apart from other protein powder options. The instantized powder makes carbohydrate absorption rapid and easy on digestion. Try Optimum Nutrition Serious Mass today!

International Protein Heavy Weight Gainer

This particular weight gainer boasts one of the highest protein contents per serving, making it a great addition to the diet of someone trying to gain mass! Unlike naked mass powder which contains no flavour, International Protein have crafted a chocolate and vanilla flavour that will help you build muscle whilst tasting delicious. You can also guarantee each serving will be packed with high quality carbohydrates and minimal added sugar. Try Heavy Weight Gainer from International Protein for yourself!

Max’s Absolute Mass

Lean muscle often requires you to pack the food in, but a product like Absolute Mass can make this process much easier. This is one of the most popular weight gainers at Power Supps because it contains a truck load of protein and overall calories per serving. Max’s are a proud Australian company that try to include digestive enzymes and limit artificial sweeteners which can assist with absorption of the key nutrients. The inclusion of a healthy fat source also insures your insulin levels are not shooting up wildly. True mass gain can be difficult, but a shake like this with a scoop of creatine every day will have you well on your way!

Rule One Gain

This product allows you to take in 50g of protein and 75g of carbohydrates per serving in a very convenient way. The nutritional content on Rule 1 Gain shows everything you want to see in a high-quality weight gainer. When it comes to flavour, naked mass gainers cannot compete with options like Chocolate Peanut Butter, Strawberry and Cookies & Cream! If you are on a quest for new muscle tissue, look no further than Rule One Gain as a premium protein source!

Max’s Clean Mass

High-Quality muscle gain requires a protein source which has all the necessary amino acids and the calories needed to support a surplus. Clean Mass from Max’s gives you exactly that plus much more. In each serve of this product, you’ll find 73g of carbohydrates, 36g of protein and only 1g of fat. This is a recipe for gains and adding muscle to your body!

How to Use a Mass Gainer

Using a Shaker

Mix 1 serving of your desired gainer with 500ml of water or milk and consume at any time during the day. It is recommended that you start by using a half serving of this product initially and if after a while, your weight is still not increasing, progress to using the full serving size. You can even add a scoop of creatine to make it a complete shake!

Using a Blender

Gainer products often require 2-4 scoops of powder which is quite a lot depending on how much fluid you use. If you want to guarantee a smooth, creamy shake every time, use a blender when preparing your shake!


We hope this blog has been helpful in explaining some of the details about gainers, because as you can see , there is a lot to know about! If you are looking for a high-quality weight gainer to add to your supplement stack, there really is no better place to look than Power Supps. We have a huge range of brands when it comes to gainers, each coming in different flavours. Start shopping now and get amongst those gains!