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Serious Mass by Optimum Nutrition

4.9
Rated 4.9 out of 5 stars
48 Reviews
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When it comes to building muscle mass, increasing calorie intake is essential. Optimum Nutrition offers a powerful solution with its Serious Mass gainer formula, designed for individuals aiming to bulk... Read more

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When it comes to building muscle mass, increasing calorie intake is essential. Optimum Nutrition offers a powerful solution with its Serious Mass gainer formula, designed for individuals aiming to bulk up. Each serving packs a hefty punch with 1250 calories, 50 grams of protein, and over 250 grams of carbohydrates.

What sets this weight gainer apart is the absence of added sugars, replaced instead by beneficial ingredients like creatine, glutamine, and a blend of 20 vitamins and minerals. This results in a delicious shake loaded with high-quality calories ideal for muscle growth. Optimum Nutrition Serious Mass stands out as the ultimate formula for both muscle building and weight gain.

Key Benefits of Optimum Nutrition Serious Mass:

  • Facilitates muscle mass gains
  • Delivers 1250 calories per serving to support optimal weight gain and muscle development
  • Contains a high-value protein blend (50g) for muscle maintenance and growth
  • Provides over 250g of carbohydrates to fuel workouts and replenish glycogen stores
  • Incorporates creatine monohydrate for enhanced muscle strength, power, and size during intense training
  • Enriched with 20 essential minerals and vitamins
  • Ideal for post-workout recovery or as a meal replacement

Who Should Use Optimum Nutrition Serious Mass?

This product is perfect for individuals engaged in rigorous training regimes seeking to increase muscle mass. It's also suitable for those struggling to meet their daily calorie requirements through regular food intake or facing challenges in gaining weight despite sufficient eating.

When Is the Best Time to Consume Optimum Nutrition Serious Mass?

Serious Mass can be taken post-workout to aid in recovery and muscle growth or between meals to help meet macro targets. Simply mix two scoops with 700-720ml of cold water or milk using an electric blender. Beginners can start with one scoop (half serving) before progressing.

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
More Information

When it comes to building muscle mass, increasing calorie intake is essential. Optimum Nutrition offers a powerful solution with its Serious Mass gainer formula, designed for individuals aiming to bulk up. Each serving packs a hefty punch with 1250 calories, 50 grams of protein, and over 250 grams of carbohydrates.

What sets this weight gainer apart is the absence of added sugars, replaced instead by beneficial ingredients like creatine, glutamine, and a blend of 20 vitamins and minerals. This results in a delicious shake loaded with high-quality calories ideal for muscle growth. Optimum Nutrition Serious Mass stands out as the ultimate formula for both muscle building and weight gain.

Key Benefits of Optimum Nutrition Serious Mass:

  • Facilitates muscle mass gains
  • Delivers 1250 calories per serving to support optimal weight gain and muscle development
  • Contains a high-value protein blend (50g) for muscle maintenance and growth
  • Provides over 250g of carbohydrates to fuel workouts and replenish glycogen stores
  • Incorporates creatine monohydrate for enhanced muscle strength, power, and size during intense training
  • Enriched with 20 essential minerals and vitamins
  • Ideal for post-workout recovery or as a meal replacement

Who Should Use Optimum Nutrition Serious Mass?

This product is perfect for individuals engaged in rigorous training regimes seeking to increase muscle mass. It's also suitable for those struggling to meet their daily calorie requirements through regular food intake or facing challenges in gaining weight despite sufficient eating.

When Is the Best Time to Consume Optimum Nutrition Serious Mass?

Serious Mass can be taken post-workout to aid in recovery and muscle growth or between meals to help meet macro targets. Simply mix two scoops with 700-720ml of cold water or milk using an electric blender. Beginners can start with one scoop (half serving) before progressing.

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
4.9
Rated 4.9 out of 5 stars
Based on 48 reviews
Total 5 star reviews: 42 Total 4 star reviews: 5 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 0
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98%would recommend this product
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48 reviews
  • JH
    Jonathan H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 days ago
    I'm excited!

    I just started adding Serious Mass to my daily routines a few days ago and haven't seen any significant changes yet (of course lol). But, I know people who used/are using this for a long time and are happy with their gains hence, I tried it too. I'm excited to see my improvements 🤞

    Was this helpful?
  • WR
    Wayne R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    6 months ago
    All I needed

    This product is a very y high-quality product

    Doing what I needed.

    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
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  • MU
    Muhammad U.
    Flag of Australia
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 years ago
    Best Mass Gainer

    This is the one which i like and got positive result. Flavour is very good. Nutrition content is excellent.

    Was this helpful?
  • PL
    Peter L.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    1 month ago
    Pretty good, lil pricey though

    Not bad, flavour wise really good I've only had chocolate and honestly liked it. Still yet to see any increase in mass as I'm trying to bulk at the moment, will definitely continue in the hopes of progress. Disclaimer, for those with sensitive stomach do be cautious, may feel nauseous but overall not terrible

    Was this helpful?
  • VL
    Victoria L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Happy

    Excellent

    Was this helpful?
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