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BuyWisely is your one stop price comparison platform, delivering the best deals from over 20,000 online shops. We empower shoppers to make smart, cost-effective choices by offering transparent pricing, price history, and the latest deals across a broad range of products. With BuyWisely, your money goes further.

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Price comparison

Price data powered by pricesAPI.io

Last updated at 15/10/2026 08:27:34

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64Amazon.com.au

$59.44

OPTIMUM NUTRITION Serious Mass Protein Powder, Mass Gainer, 1250 Calories Per Serve, Chocolate, 2.72kg - [packaging may vary]

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=chemistwarehouse.com.au&sz=64Chemist Warehouse

$59.44

Optimum Nutrition Serious Mass Vanilla 2.72kg

Delivery between Fri – Mon $9.99

https://www.google.com/s2/favicons?domain=supplementco.com.au&sz=64Supplement Co.

$89.99

ON Serious Mass Vanilla / 2.72kg

Delivery between 20–28 Oct $14.95

https://www.google.com/s2/favicons?domain=nutritionwarehouse.com.au&sz=64Nutrition Warehouse

$98.95

Serious Mass by Optimum Nutrition, 2.72kg | 8 Serves / Banana

Delivery between 21–28 Oct $9.95

https://www.google.com/s2/favicons?domain=costpricesupplements.com.au&sz=64Cost Price Supplements

$98.95

Serious Mass Gainer by Optimum Nutrition 2.72kg (6lbs) Vanilla

Free delivery

https://www.google.com/s2/favicons?domain=fitnesswarehouse.com.au&sz=64Fitness Warehouse Australia

$101.14

Optimum Nutrition Serious Mass 6LB / Chocolate

Delivery $20

https://www.google.com/s2/favicons?domain=zumub.com&sz=64Zumub

$105.88

Optimum Nutrition Serious Mass 2,7kg Vanilla - Gainer

Free delivery

https://www.google.com/s2/favicons?domain=australiansportsnutrition.com.au&sz=64Australian Sports Nutrition

$114.95

Optimum Nutrition Serious Mass 6lb / Vanilla

Delivery $9.95

https://www.google.com/s2/favicons?domain=muscleandstrength.com&sz=64Muscle & Strength

$148.99

Optimum Nutrition Serious Mass - 12lbs Chocolate

Delivery $126.99

https://www.google.com/s2/favicons?domain=australianmuscle.com.au&sz=64Australian Muscle

$164.95

Optimum Nutrition Serious Mass | 1260 Cal 50g Protein Mass Gainer | Australian Muscle 12lb / Banana

Free delivery between 20–28 Oct

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

FlavorVanilla, Banana, Chocolate, Chocolate Peanut Butter, Strawberry
FormPowder
Protein Grams Per Serving50 g
Protein TypeWhey protein concentrate from milk
Meal Replacement?May be used to supplement caloric intake

Price comparison

Updated 23 days ago
Please note: price history and price alerts are not available for some stores, including Amazon.com.au.
https://www.google.com/s2/favicons?domain=amazon.com.au&sz=64
Amazon.com.au

$59.44

OPTIMUM NUTRITION Serious Mass Protein Powder, Mass Gainer, 1250 Calories Per Serve, Chocolate, 2.72kg - [packaging may vary]

Free delivery

Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!

https://www.google.com/s2/favicons?domain=chemistwarehouse.com.au&sz=64
Chemist Warehouse

$59.44

Optimum Nutrition Serious Mass Vanilla 2.72kg

Delivery between Fri – Mon $9.99

https://www.google.com/s2/favicons?domain=supplementco.com.au&sz=64
Supplement Co.

$89.99

ON Serious Mass Vanilla / 2.72kg

Delivery between 20–28 Oct $14.95

https://www.google.com/s2/favicons?domain=nutritionwarehouse.com.au&sz=64
Nutrition Warehouse

$98.95

Serious Mass by Optimum Nutrition, 2.72kg | 8 Serves / Banana

Delivery between 21–28 Oct $9.95

https://www.google.com/s2/favicons?domain=costpricesupplements.com.au&sz=64
Cost Price Supplements

$98.95

Serious Mass Gainer by Optimum Nutrition 2.72kg (6lbs) Vanilla

Free delivery

Price history

Price history

Please note: price history and price alerts are not available for some stores, including Amazon.com.au.

Specification

FlavorVanilla, Banana, Chocolate, Chocolate Peanut Butter, Strawberry
FormPowder
Protein Grams Per Serving50 g
Protein TypeWhey protein concentrate from milk
Meal Replacement?May be used to supplement caloric intake

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Optimum Nutrition Serious Mass 5 kg Banana

Optimum Nutrition Serious Mass 5 kg Banana

$59.44 - $204.90

in 18 offers

last seen 15 Oct 2026

The lowest price we last saw for Optimum Nutrition Serious Mass 5 kg Banana was $59.44 at Amazon.com.au, compared across 14 retailers (last seen 15 Oct 2026). Prices may have changed since.

The all-time low we recorded was $59.44 on 15 Oct 2026.

Prices last updated 15 Oct 2026.

Size:

3 lb
1 kg
2.72 kg
2.72kg
2.73kg (8 Shakes)
5 kg

Optimum Nutrition Serious Mass 5 kg Banana

$59.44

last seen 15 Oct 2026