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, recover faster, and own your gains with Serious Mass!

CALORIE POWERHOUSE - Fuel your gains with a massive 1250 calories per serving—because average just won’t cut it.
CLEAN LEAN FORMULA - Less than 5g fat and zero added sugar—serious mass without the unnecessary extras.
MUSCLE GROWTH MAXIMIZER - 50 grams of premium protein plus 3 grams of creatine to push your performance beyond limits.
VITAMIN MINERAL ARSENAL - Packed with 25 essential vitamins and minerals to keep your body primed and recovery rapid.
VERSATILE FLAVOR EXPERIENCE - Six crave-worthy flavors including Vanilla, Chocolate Peanut Butter, and Cookies & Cream—customize your post-workout ritual.

Optimum Nutrition Serious Mass is a high-calorie mass gainer powder designed for athletes and fitness enthusiasts aiming for serious muscle growth and weight gain. Each serving delivers 1250 calories, 50g of protein, 250g of carbs, and 3g of creatine monohydrate, complemented by 25 essential vitamins and minerals. With less than 5g fat and no added sugar, it supports clean bulking and rapid recovery. Available in six delicious flavors, it’s easy to mix and perfect for post-workout or between meals to fuel your performance and transformation.

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.

€ 214.88

Duties & taxes incl.

Slovakiastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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Allergen Information	Contains: Eggs, Milk, Soy
Weight	5.44 kg
Units	5450.0 gram
Storage Instructions	In a cool, dry place
Manufacturer contact	4 Waterside, Dublin 24, Ireland
Country of origin	gb
Brand	Optimum Nutrition
Format	Powder
Age Range Description	Adult
Country of origin	United Kingdom
Serving Size	100 g
Energy (kcal)	379.77 kcal
Fat	1.4 g
of which:	-
- Saturates	0.5 g
Carbohydrate	77 g
of which:	-
- Sugars	7.8 g
Protein	15 g
Salt	0.48 g

Optimum NutritionSerious Mass Protein Powder with Creatine, Glutamine, 25 Vitamins and Minerals, Vanilla Flavour, 16 Servings, 5.45KG

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