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Protein Powder

An essential macronutrient for building muscle, repairing tissue, and making enzymes and hormones, protein is king at Bay Supplements! Our range of protein powders can help you reach your goals, be that weight loss, muscle gains or simply meeting nutritional baselines. At Bay Supplements, we have protein powders to suit every need, including whey, whey isolate, casein and plant protein powders.

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  • MUSCLETECH MASS TECH EXTREME 2000 6LB - Bay Supplements
    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95

    MUSCLETECH MASS TECH EXTREME 2000 6LB

    Muscletech

    A 5-in-1, hardcore mass gainer designed for individuals looking to put on an extreme amount of mass.   FEATURES: MASS GAINER PROTEIN POWDER – Mass...

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    Original price $99.95 - Original price $99.95
    Original price
    $99.95
    $99.95 - $99.95
    Current price $99.95
  • Sold out
    Original price $189.95 - Original price $189.95
    Original price
    $189.95
    $189.95 - $189.95
    Current price $189.95

    MUTANT WHEY NEW & IMPROVED 10LB

    Mutant

    Mutant Whey 10LB New & Improved! BUILD MUSCLE | NEW AMAZING TASTE | BETTER MIX-ABILITY  Mutant's #1 selling Protein is now even better tasting ...

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    Original price $189.95 - Original price $189.95
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    Current price $189.95
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  • MUTANT ISO SURGE WHEY PROTEIN ISOLATE 5LB - Bay Supplements
    Original price $169.95 - Original price $169.95
    Original price
    $169.95
    $169.95 - $169.95
    Current price $169.95

    MUTANT ISO SURGE WHEY PROTEIN ISOLATE 5LB

    Mutant

    You want a high quality whey isolate that will deliver exactly what the label says, with a huge hit of gourmet flavour. You want the best, to taste...

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    Original price $169.95 - Original price $169.95
    Original price
    $169.95
    $169.95 - $169.95
    Current price $169.95
  • MUSCLETECH NITRO-TECH 100% WHEY GOLD 2LB - Bay Supplements
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    Original price $79.95 - Original price $79.95
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    $79.95
    $79.95 - $79.95
    Current price $79.95

    MUSCLETECH NITRO-TECH 100% WHEY GOLD 2LB

    Muscletech

    Nitro-Tech 100% Whey Gold features 24g whey protein peptides and isolate to support fast recovery and help you build more lean muscle mass.   This ...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95
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  • Original price $5.00 - Original price $5.00
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    $5.00
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    Current price $5.00

    MUTANT MASS EXTREME 2500 - SAMPLE

    Mutant

    Mutant MASS EXTREME 2500 was made for extreme hard gainers who simply can't gain mass no matter how much they eat or how hard they train.   Those w...

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    Original price $5.00 - Original price $5.00
    Original price
    $5.00
    $5.00 - $5.00
    Current price $5.00
  • EHP LABS ISOPEPT ZERO 2LB - Bay Supplements
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    Original price $84.95 - Original price $84.95
    Original price
    $84.95
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    Current price $84.95

    EHP LABS ISOPEPT ZERO 2LB

    EHP Labs

    We created ISOPEPT Hydrolyzed Whey Protein for EVERYONE demanding the highest quality post-workout protein to immediately fuel your muscles with th...

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    Original price $84.95 - Original price $84.95
    Original price
    $84.95
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    Current price $84.95
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  • Original price $39.95 - Original price $39.95
    Original price
    $39.95
    $39.95 - $39.95
    Current price $39.95

    NOWHEY PLANT PROTEIN 1KG

    NoWhey

    No frills, pure pea protein at a price that’s unbeatable. NoWhey Plant protein is packaged right here in New Zealand and represents the ultimate va...

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    Original price $39.95 - Original price $39.95
    Original price
    $39.95
    $39.95 - $39.95
    Current price $39.95
  • MUSCLETECH MASS TECH EXTREME 2000 20LB - Bay Supplements
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    Original price $199.95 - Original price $199.95
    Original price
    $199.95
    $199.95 - $199.95
    Current price $199.95

    MUSCLETECH MASS TECH EXTREME 2000 20LB

    Muscletech

    Let's face it – size is king! Nothing tells people that you're a bodybuilder more than a hulking frame complete with wide shoulders, big arms, a po...

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    Original price $199.95 - Original price $199.95
    Original price
    $199.95
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    Current price $199.95
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  • Original price $119.95 - Original price $119.95
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    $119.95
    $119.95 - $119.95
    Current price $119.95

    RULE 1 SOURCE7 PROTEIN 5LB

    Rule 1

    SOURCE7 PROTEINMulti-Source Protein BlendSource7 Protein brings together seven premium proteins, decadent flavor, and velvety smooth texture in an ...

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    Original price $119.95 - Original price $119.95
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    $119.95
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    Current price $119.95
  • Sold out
    Original price $59.95 - Original price $59.95
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    $59.95
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    Current price $59.95

    RULE 1 SOURCE7 PROTEIN 2LB

    Rule 1

    SOURCE7 PROTEINMulti-Source Protein BlendSource7 Protein brings together seven premium proteins, decadent flavor, and velvety smooth texture in an ...

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    Original price $59.95 - Original price $59.95
    Original price
    $59.95
    $59.95 - $59.95
    Current price $59.95
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  • MUSCLE NATION CUSTARD CASEIN PROTEIN - Bay Supplements
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    Original price $84.95 - Original price $84.95
    Original price
    $84.95
    $84.95 - $84.95
    Current price $84.95

    MUSCLE NATION CUSTARD CASEIN PROTEIN

    Muscle Nation

    Casein is a dairy protein that is slowly digested by the body. This is due to the formation of a clot inside the stomach, which will take longer to...

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    Original price $84.95 - Original price $84.95
    Original price
    $84.95
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    Current price $84.95
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  • Original price $79.95 - Original price $79.95
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    $79.95
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    Current price $79.95

    NEXUS SPORTS NUTRITION SUPER PROTEIN WATER - 30 SERVES

    Nexus Sports Nutrition

    Indulge in these super protein waters with flavours that will leave your taste buds singing with delight. Perfect for any time of day, it's sure to...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
    $79.95 - $79.95
    Current price $79.95
  • MUSCLETECH MASS TECH EXTREME 2000 12LB - Bay Supplements
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    Original price $149.95 - Original price $149.95
    Original price
    $149.95
    $149.95 - $149.95
    Current price $149.95

    MUSCLETECH MASS TECH EXTREME 2000 12LB

    Muscletech

    Let's face it – size is king! Nothing tells people that you're a bodybuilder more than a hulking frame complete with wide shoulders, big arms, a po...

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    Original price $149.95 - Original price $149.95
    Original price
    $149.95
    $149.95 - $149.95
    Current price $149.95
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  • Sold out
    Original price $169.95 - Original price $169.95
    Original price
    $169.95
    $169.95 - $169.95
    Current price $169.95

    MUTANT MASS EXTREME 2500 20LB

    Mutant

    Mutant Mass XXXtreme is designed for hard gainers looking to add serious size seriously FAST! Each serving includes clean, whole-food carbs, 100% p...

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    Original price $169.95 - Original price $169.95
    Original price
    $169.95
    $169.95 - $169.95
    Current price $169.95
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  • ANS PERFORMANCE DIABLO THERMOGENIC PROTEIN 4LB - Bay Supplements
    Original price $129.95 - Original price $129.95
    Original price
    $129.95
    $129.95 - $129.95
    Current price $129.95

    ANS PERFORMANCE DIABLO THERMOGENIC PROTEIN 4LB

    ANS Performance

    20g Lean Protein per Serving Only 100 Calories per Serving Low Fat, Low Sugar Natural Weight Loss Support DIABLO PROTEIN: Weight Management Protei...

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    Original price $129.95 - Original price $129.95
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    $129.95
    $129.95 - $129.95
    Current price $129.95
  • OPTIMUM NUTRITION CASEIN PROTEIN 4LB - Bay Supplements
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    Original price $149.95 - Original price $149.95
    Original price
    $149.95
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    Current price $149.95

    OPTIMUM NUTRITION CASEIN PROTEIN 4LB

    Optimum Nutrition

    SLOW PROTEIN DIGESTION! LOW CARB SLOW DIGESTING, ANTI CATABOLIC MICELLER PROTEIN WITH GLUTAMINE! Sometimes slower is better - especially when it co...

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    Original price $149.95 - Original price $149.95
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    $149.95
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    Current price $149.95
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  • OPTIMUM NUTRITION SERIOUS MASS 6LB - Bay Supplements
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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95

    OPTIMUM NUTRITION SERIOUS MASS 6LB

    Optimum Nutrition

    Gain some serious size with Optimum Nutrition's Serious Mass! Optimum Nutrition Serious Mass is the ultimate muscle building and weight gain formul...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
    $79.95 - $79.95
    Current price $79.95
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  • OPTIMUM NUTRITION GOLD STANDARD 100% WHEY ISOLATE 1.6LB - Bay Supplements
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    Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95

    OPTIMUM NUTRITION GOLD STANDARD 100% WHEY ISOLATE 1.6LB

    Optimum Nutrition

    Optimum Nutrition Gold Standard 100% Isolate is an ultra-pure protein powder that has been designed to minimise any excess fat, cholesterol, and su...

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    Original price $89.95 - Original price $89.95
    Original price
    $89.95
    $89.95 - $89.95
    Current price $89.95
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  • MUTANT ISO SURGE 1.6LB - Bay Supplements
    Original price $79.95 - Original price $79.95
    Original price
    $79.95
    $79.95 - $79.95
    Current price $79.95

    MUTANT ISO SURGE 1.6LB

    Mutant

    Details   High speed absorption to get protein into your muscle tissue FAST Premium high quality protein, enzyme boosted for extra bio-availabilit...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95
  • INTERNATIONAL PROTEIN AMINO CHARGED WPI 907G - Bay Supplements
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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95

    INTERNATIONAL PROTEIN AMINO CHARGED WPI 907G

    International Protein

    AMINO ACID ENHANCED FORMULA What do you get when you take whey protein isolate, boost it with natural whey peptides and then super-charge it with t...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95
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  • OPTIMUM NUTRITION GOLD STANDARD GAINER 10LB - Bay Supplements
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    Original price $199.95 - Original price $199.95
    Original price
    $199.95
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    Current price $199.95

    OPTIMUM NUTRITION GOLD STANDARD GAINER 10LB

    Optimum Nutrition

    Optimum Nutrition Gold Standard Gainer is built on a foundation of complete dairy proteins, mostly from isolate sources. The carbohydrate blend inc...

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    Original price $199.95 - Original price $199.95
    Original price
    $199.95
    $199.95 - $199.95
    Current price $199.95
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  • MUTANT WHEY PROTEIN 2LB - Bay Supplements
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    Original price $54.95 - Original price $54.95
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    $54.95
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    Current price $54.95

    MUTANT WHEY PROTEIN 2LB

    Mutant

    We all know that protein helps build muscle. You create that demand for growth with training — high intensity training. Hardcore. Pushing yourself ...

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    Original price $54.95 - Original price $54.95
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    $54.95
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    Current price $54.95
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  • Sold out
    Original price $74.99 - Original price $74.99
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    $74.99
    $74.99 - $74.99
    Current price $74.99

    MUSCLE NATION PROTEIN WATER 750G

    Muscle Nation

    A refreshing clear protein water supplement which is a light alternative to the usual milky protein shake. With the benefits of protein, collagen, ...

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    Original price $74.99 - Original price $74.99
    Original price
    $74.99
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    Current price $74.99
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  • MUSCLETECH NITRO-TECH 2.2LB - Bay Supplements
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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95

    MUSCLETECH NITRO-TECH 2.2LB

    Muscletech

    Whether or not you’re competing, you’re always looking for an edge. For more than two decades, we’ve fueled those with the strength to not just pla...

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    Original price $79.95 - Original price $79.95
    Original price
    $79.95
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    Current price $79.95
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