What's new with Serious Mass?

Not only does Serious Mass have a fresh new look, but it also has added 3 grams of creatine to support your performance.

The label looks different compared to the previous one I got, is it still the same OPTIMUM NUTRITION product?

As you evolve, so do we. The part of our mission is to help active individuals better understand OPTIMUM NUTRITION products. Now choosing the right product for you is easier with more visible product benefits, features and flavours on each tub.

The tub is not full to the brim when opened, why is that?

This is completely normal and is to do with the way the powder is vacuum packed into the tub. The powder settles over time. This does not impact the weight or number of servings listed on the label.

What is the best way to prepare Serious Mass drink?

To get the optimal consistency and prepare your drink in easy and convenient way, we recommend using a blender.

Are the ingredients tested and safe?

All of the ingredients in our products have been approved and considered safe for consumption by the European Food Safety Authority.

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💥 Bulk smarter, not harder with Serious Mass!

PROTEIN POWERHOUSE - 50 grams of premium protein to sculpt and repair muscle after every workout.
MASSIVE CALORIE BOOST - Fuel your gains with 1250+ calories per serving—because average just won’t cut it.
PERFORMANCE AMPLIFIER - 3 grams of creatine monohydrate to push your limits and power through plateaus.
LOW FAT NO ADDED SUGAR - Less than 5g fat and zero added sugars for clean, effective mass gain without the bloat.
VITAMIN MINERAL COMPLEX - 25 essential vitamins and minerals to keep your body optimized and recovery on point.

Optimum Nutrition Serious Mass is a high-calorie mass gainer powder delivering over 1250 calories, 50g protein, and 3g creatine per serving. Enhanced with 25 vitamins and minerals and low in fat and sugar, it supports muscle growth, recovery, and performance. Available in 6 flavors, it’s designed for adults seeking serious muscle gains with clean nutrition.

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

AR$246062

Duties & taxes incl.

Argentinastore

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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Additives	L-Glutamine,Creatine
Allergen Information	Contains: Egg may contain, Gluten may contain, Milk, Peanuts may contain, Soy
Weight	2.72 kg
Units	2730.0 gram(s)
Serving Recommendation	334 g
Manufacturer contact	4 Waterside, Dublin 24, Ireland
Brand	Optimum Nutrition
Format	Powder
Age Range Description	Adult
Country of origin	United Kingdom

Optimum Nutrition Serious Mass Protein Powder High Calorie Mass Gainer with Vitamins, Creatine and Glutamine, Chocolate, 8 Servings, 2.73 kg, Packaging May Vary

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