Dear Valued Customer, I hope this message finds you well. We wanted to inform you that Optimum Serious Mass in the 1 kg variant is currently not in production by the company. However, we do have the following options available: Optimum Nutrition (ON) Serious Mass: Chocolate, 12 Lbs (5.44 KG) Optimum Nutrition (ON) Serious Mass: Chocolate, 6lb (2.73 KG) Thank You!

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.

On Serious Mass High Protein Muscle Building And Weight Gainer

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Description

💥 Bulk Up Smart: Serious Mass for Serious Gains!

CLEAN CARB SURGE - Over 250g of carbohydrates with zero added sugar for sustained energy without the crash.
CALORIE POWERHOUSE - Fuel your gains with a massive 1,250 calories per serving—because size matters.
RECOVERY AMPLIFIERS - Enhanced with Creatine, Glutamine, and Glutamic Acid to maximize post-workout recovery.
IMMUNE BOOSTING ESSENTIALS - Infused with Vitamin C, Zinc, and Vitamin D to keep your defenses strong while you bulk.
PROTEIN PACKED PERFORMANCE - 50 grams of premium blended protein to accelerate muscle repair and growth.

Optimum Nutrition Serious Mass is a high-calorie, high-protein weight gainer designed for adults seeking rapid muscle and mass growth. Each 6 lb container delivers 1,250 calories, 50 grams of blended protein, and over 250 grams of carbs per serving, enriched with 25 essential vitamins and minerals plus recovery-boosting creatine and amino acids. Perfect for post-workout or between meals, this vegetarian-friendly chocolate-flavored formula supports muscle recovery, immune health, and sustained energy without added sugars.

Specifications

ASIN	B06XH28C1K
Age Range Description	Adult
Best Sellers Rank	#2,935 in Health ( See Top 100 in Health ) #146 in Sports Supplements
Brand	Optimum Nutrition
Brand Name	Optimum Nutrition
Country of Publication	USA
Customer Reviews	4.1 out of 5 stars 304 Reviews
Diet Type	Vegetarian
Diet type	Vegetarian
Flavor	Chocolate
Flavour	Chocolate
Item Dimensions	8 x 4 x 6 centimeters
Item Nype Name	HEALTH_PERSONAL_CARE
Item Weight	0.27 Kilograms
Item weight	0.27 Kilograms
Manufacturer	Optimum Nutrition
Manufacturer Part Number	SERIOUS MASS CHOCOLATE 6lbs
Material Type Free	Finished Product
Material type free	Finished Product
Model Number	SERIOUS MASS CHOCOLATE 6lbs
Number of Items	1
Package Type Name	Bottle
Product Benefits	High Calorie, High Protein formula for Muscle and Mass Gain Support
Servings per container	8
Total Servings Per Container	8
UPC	748927022995 748927070132
Unit Count	2720 Grams

Reviews

K**F

Highly recommended

Awesome product

3.05.2025

M**A

Perfect value for money

perfect value for money

11.08.2024

A**E

Good product

one of the best muscle building protein

29.03.2026

K**A

Great!

Great

26.03.2025

Z**E

I need my refund back

It’s fake and how come I can’t return it

22.08.2025

A**D

Value for money

Product is original. Chocolate flavour is just ok. I hope the result will be good.

30.12.2023

A**D

منتج جيد اصلى

شكرا لامازون

24.11.2024

S**A

منتج جيد لمن يشرب الكثير من الماء

اصبت بحصى الكلى و قد كان هو السبب ولكن انا من لم يكن يشرب ما يكفي من الماء

10.04.2023

B**A

انصح بالشراء

اشتريته أربع مرات ممتاز

17.08.2025

A**A

Good

2.03.2023

M**L

Super Produkte

Super

18.11.2020

P**A

Muy rico

Sabe a cola cao y está muy rico no como otras marcas que es difícil de tomar

22.10.2025

ب**ي

شكرا

14.07.2026

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.

(ON) Serious Mass: High Protein Muscle Building & Weight Gainer Protein Powder, 50 Grams of Protein, Vitamin C, Zinc And Vitamin D For Immune Support - Chocolate, 6 Lbs (2.72 KG)

Details

Details

Description

Specifications

Reviews

Common Questions