Collection: Lean Protein Powder

Lean gainer proteins are your best choice of supplements when you want to increase muscle mass without adding unnecessary fat. One of our most popular supplements, lean protein powders contain just the right carb-to-protein ratio and nutrients to achieve lean muscle gain.

Our 100% Aussie-owned and made lean whey protein gainers are formulated with the optimum balance of science-backed nutrients to build clean, lean mass for the body you've always wanted. And, just as importantly, they taste absolutely awesome. 

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An effective lean mass gainer supplement should not only be low in sugar and fats but also offer the perfect balance of premium-quality protein and good carbs, paired with a combination of slow- and fast-acting proteins to stimulate protein synthesis. With MAX's Clean Mass Gainer, you get to experience an anabolic protein blend that is a specific combination of fast, medium and slow dairy proteins to stretch your muscle growth window by several hours.

The longer you stay anabolic, the more muscle you pack!

An effective lean mass gainer supplement supports muscle growth and recovery while minimising fat gain by providing a well-balanced combination of high-quality protein, complex carbohydrates, and minimal added sugars and fats. The goal is to create an optimal environment for muscle protein synthesis and ensure sustained energy levels for intense workouts and muscle recovery.

Key features of an effective lean mass gainer supplement include:

  • Protein Quality: The foundation of any lean mass gainer is a high-quality protein source. Premium protein is essential for muscle repair and growth, providing all the essential amino acids needed to support muscle protein synthesis. Protein sources such as whey, casein, and other dairy proteins are commonly used due to their excellent amino acid profile and high bioavailability.
  • Balanced Carbohydrates: Our lean muscle protein powder blends contain the optimum 2:1 ratio of carbs to protein with our sustained release GlycoForce Carb System for sustained energy and to help fuel muscle growth. 
  • Low Sugar and Fats: To maintain a lean physique, it's crucial to avoid excessive sugar and fat content. Our lean mass gainers contain no added sugars or unhealthy fats to help stabilise blood glucose levels and prevent unwanted fat accumulation.
  • Combination of Slow and Fast-Acting Proteins: Combining different protein sources with varying digestion rates ensures a sustained release of amino acids into the bloodstream. This combination promotes an extended anabolic state, supporting muscle protein synthesis over an extended period. Fast-acting proteins, like whey, deliver amino acids quickly, while slow-acting proteins, like casein, provide a steady release of amino acids over several hours.

MAX's Clean Mass Gainer takes these principles to the next level by offering an anabolic protein blend specifically designed to extend the muscle growth window. By combining fast, medium, and slow dairy proteins, the supplement ensures a continuous supply of amino acids to the muscles, further enhancing muscle protein synthesis. This prolonged anabolic state allows the body to utilise the available nutrients more efficiently for muscle repair and growth, maximising the benefits of each training session.

When the body remains in an anabolic state for an extended period, the potential for muscle gain increases. The continuous availability of amino acids ensures that the muscles have the necessary building blocks to recover and grow optimally. This sustained anabolic environment is crucial for individuals aiming to pack on lean muscle mass while minimising fat gain.

Discover the Power of Lean Protein Powder

There’s many benefits associated with incorporating Lean Protein Powders into your fitness and nutrition regimen. These powerful supplements offer a host of advantages that can enhance your overall health and support your fitness goals. Some of the key benefits include:

  • Post-Workout Recovery: Lean protein powder is an excellent post-workout recovery option due to its fast-acting protein sources, which help kickstart muscle repair and growth immediately after intense training sessions.
  • Versatile Meal Replacement: Replace a meal with a nutritious shake using lean protein powder to support your weight management goals while ensuring you get the right balance of macronutrients for sustained energy and lean muscle maintenance.
  • Weight Management: With their low sugar and fat content, Lean Protein Powders are an excellent addition to your weight management strategy. They can help you feel fuller for longer, making it easier to control your appetite and manage your calorie intake.
  • Lean Muscle Gain: As the name suggests, Lean Protein Powders are specifically designed to support lean muscle gain. They offer the right balance of nutrients to promote muscle development without adding unnecessary fat.


If you're new to supplementation, it's easy to get confused about the difference between mass and lean gainers. Let's clear it up here: lean gainer proteins are mass gainers, but with a lower carbohydrate content. Since they are also low in fats, they don’t contribute to belly fat.

These supplements are popular among underweight folks and people seeking to gain weight through muscle growth, regardless of age.

Mass gainers are protein supplements designed to provide a high-calorie intake, primarily from carbohydrates and protein, to promote weight gain, particularly muscle mass. These supplements are ideal for individuals who struggle to consume enough calories through regular meals alone, such as those with a fast metabolism or those aiming for significant muscle hypertrophy.

Key features of mass gainers include:

  • High Caloric Content: Mass gainers are calorie-dense, providing a substantial number of calories per serving. They typically contain a significant amount of carbohydrates, often derived from maltodextrin or other complex carbohydrate sources.

  • Carbohydrate-to-Protein Ratio: The carbohydrate-to-protein ratio in mass gainers is higher compared to lean gainers. The emphasis on carbohydrates helps to replenish glycogen stores, supporting intense workouts and providing a readily available energy source for muscle growth.

  • Weight Gain Focus: Mass gainers prioritise overall weight gain, including both muscle mass and some fat mass. They are suitable for individuals looking to gain size and strength, especially those who find it challenging to consume large volumes of food throughout the day.

Lean gainers, as a subset of mass gainers, offer similar muscle-building benefits but with a lower carbohydrate content. The primary focus of lean gainers is to promote lean muscle mass while minimising fat gain. These supplements are suitable for individuals who want to gain weight primarily through muscle growth without adding excess body fat.

Key features of lean gainers include:

  • Moderate Caloric Content: Lean gainers provide a moderate number of calories per serving, with an emphasis on high-quality protein and lower carbohydrates, compared to mass gainers.

  • Protein Emphasis: Lean gainers prioritise protein content, often featuring a higher protein-to-carbohydrate ratio than mass gainers. This ensures a steady supply of amino acids to support muscle protein synthesis and recovery.

  • Fat Control: Lean gainers typically contain minimal fats to prevent excessive calorie intake from fats and avoid unnecessary fat accumulation.

Mass gainers are ideal for individuals with a naturally slender build or fast metabolism, as they help provide the extra calories needed for weight gain and muscle building.

Lean gainers are suitable for individuals who want to gain lean muscle mass without significant fat gain, ensuring a more toned and defined physique.

MAX’s lean whey proteins contain a blend of proteins, including hydrolysed whey peptides, casein and milk protein isolate along with both pure whey protein isolate (WPI) and whey protein concentrate (WPC). Both WPI and WPC offer valuable muscle building properties: WPI due to its lower fat, carb and lactose content and fast-acting lean muscle-building qualities and WPC due to its medium-acting proteins, muscle-building and health-boosting benefits. Here’s a breakdown of whey protein isolate compared with whey protein concentrate. 

  • Protein Content. Whey protein isolate contains a higher percentage of protein (usually around 90% or more) with minimal fats, lactose, and carbohydrates. During the processing, most of the non-protein components are removed, resulting in a purer protein source. Meanwhile, whey protein concentrate typically contains a lower percentage of protein (around 70-80%) and retains more of the original nutrients found in whey, including fats and carbohydrates, as the processing is less intensive.
  • Lactose Content: Due to extra processing, whey protein isolate contains very little lactose, making it a suitable option for individuals who are lactose intolerant or have sensitivity to lactose. 
  • Fat and Carbohydrate Content. Whey protein isolate has a significantly lower fat and carbohydrate content compared to concentrate. This makes it a better choice for those aiming to limit their overall calorie and carb intake. Although whey protein concentrate contains more fats and carbohydrates than isolate, the amounts are generally insignificant and can still be included in a balanced diet.
  • Digestibility. Due to its higher purity and lower lactose content, whey protein isolate is often easier to digest for many individuals, especially those with lactose intolerance or sensitive digestive systems. While still relatively easy to digest for most people, some individuals with lactose sensitivity may experience mild digestive discomfort with whey protein concentrate.


All lean-gaining supplements from MAX's are researched, developed, and manufactured in-house right here in Australia with our proteins sourced from grass-fed cows. We develop our products with our own team of food technologists and biochemists backed by some of Australia’s leading sports nutrition experts, and our lean gainers are designed to deliver real results – and taste amazing. 

MAX’s lean gainer supplements are formulated to meet the specific nutritional needs of our customers, and we’re proud to support everyone from athletes and powerlifters to individuals seeking to improve their physique and performance.

Our manufacturing facility and processes comply with the Australian Food Standards and accreditations including Dairy Manufacturing Licensed, Food Export Accredited, HACCP, GMP, and ISO22000.

If you're interested in checking out more of our products, you can check out our range of protein powder supplements.

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