When the date of expiry?

1 year ahead is the minimum requirement of all nutritional stuff in Amazone

Is there a version of this product without creatine?

Hi, This product contains Creatine. There is no version of this product without creatine.

What is the date if expiry?

The date of expiry is after 1 year and a half

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💥 Bulk Up Smart, Recover Faster, Dominate Every Rep!

CLEAN CARB ENERGY - Over 250 grams of carbohydrates with zero added sugar to keep your energy clean and consistent.
MASSIVE CALORIE SURGE - Fuel your gains with a whopping 1,250 calories per serving—perfect for serious muscle builders who refuse to settle.
IMMUNE SUPPORT FORMULA - Infused with Vitamin C, Zinc, and Vitamin D to keep your defenses as strong as your lifts.
PROTEIN PACKED PERFORMANCE - 50 grams of blended protein deliver sustained muscle growth and recovery, making every scoop count.
RECOVERY AMPLIFIERS INCLUDED - Creatine, Glutamine, and Glutamic Acid blend to accelerate muscle repair and boost endurance.

Optimum Nutrition Serious Mass is a premium 12 lb weight gainer powder designed for adults seeking rapid muscle growth and weight gain. Each serving packs 1,250 calories, 50 grams of blended protein, and over 250 grams of carbs with no added sugar, enhanced with 25 essential vitamins and minerals plus immune-supporting nutrients and recovery-boosting creatine and glutamine.

Reviews

A**N

Loved it

Buy it

12.08.2025

R**L

Works well for what it is

I bought this mass gainer two months so I can gain weight and put on muscle mass. Let me tell you it worksssss! Over the two months I’ve been taking it I’ve noticed noticeable size gains across my entire body. Though one thing if you were to take this and not train with intensity you’ll gain fat but me since I train five days a week with high intensity per session this mass gainer works very well as my post workout shake and helped significantly to put on muscle mass as well.

11.12.2022

W**M

Exceeded

Exceeded expectations, beautiful test, now the gains begin in-shaa-Allah

22.03.2025

K**F

Highly recommended

Awesome product

3.05.2025

M**M

Vanilla tastes awful

I bought the vanilla flavor and it’s one of the worse mass gainers I have drank, the after taste is very bad makes me gag. I have the full bottle and I can’t even return it

22.04.2025

K**A

Great!

Great

26.03.2025

G**D

انه بروتين للجيم

انه جيد جدا

20.02.2025

N**N

It's good

Result is very good work well

13.07.2024

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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.

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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.

¥26822

Duties & taxes incl.

Japanstore

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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

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Allergen Information	Eggs, Milk, Soy, Wheat
Weight	12 Pounds
Units	5440 gram
Use By Recommendation	Between Meals, After Weight Training & Before Bed
Serving Recommendation	One Scoop
Brand	Optimum Nutrition (ON)
Format	Powder
Age Range Description	Adult
Country of origin	USA
Serving Size	2 scoops, 2 scoops

Optimum Nutrition (ON)Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Vanilla, 12 Lbs (5.44 KG)

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