--- product_id: 249603014 title: "(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)" brand: "optimum nutrition" price: "€ 160.45" currency: EUR in_stock: true category: "Optimum Nutrition" url: https://www.desertcart.gr/products/249603014-on-serious-mass-high-protein-muscle-building-and-weight-gainer store_origin: GR region: Greece --- # 25 Vitamins & Minerals + Creatine boost 50g Blended Protein for muscle recovery 1,250 Calories per serving (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) **Brand:** optimum nutrition **Price:** € 160.45 **Availability:** ✅ In Stock ## Summary > 💥 Bulk Up, Power On: Serious Mass for Serious Gains! ## Quick Answers - **What is this?** (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) by optimum nutrition - **How much does it cost?** € 160.45 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/249603014-on-serious-mass-high-protein-muscle-building-and-weight-gainer) ## Best For - optimum nutrition enthusiasts ## Why This Product - Trusted optimum nutrition brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **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 for faster post-workout recovery and muscle endurance. - • **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. ## Overview Optimum Nutrition Serious Mass is a high-calorie, high-protein weight gainer designed for adults seeking rapid muscle growth and mass gain. 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 glutamine. Perfect for post-workout or between meals, this chocolate-flavored shake supports muscle recovery, immune health, and sustained energy without added sugars. ## Description Product Description Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted. Set Contains: 1 x Pack ## Features - Adding Calories Has Never Been This Easy or Tasted So Good - 1,250 Calories - 50 Grams of Blended Protein & 25 Vitamins and Essential Minerals - Over 250 Grams of Carbohydrates with NO ADDED SUGAR - Creatine, Glutamine and Glutamic Acid ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B06XH28C1K | | ASIN | B06XH28C1K | | Age Range Description | Adult | | Best Sellers Rank | #1,123 in Health ( See Top 100 in Health ) #47 in Sports Supplements | | Brand Name | Optimum Nutrition | | Country of Publication | USA | | Country of origin | USA | | Customer Reviews | 4.2 4.2 out of 5 stars (313) | | Customer reviews | 4.2 4.2 out of 5 stars (313) | | Diet Type | Vegetarian | | Flavor | Chocolate | | Is Discontinued By Manufacturer | Yes | | Item Dimensions | 8 x 4 x 6 centimeters | | Item Nype Name | HEALTH_PERSONAL_CARE | | Item Weight | 0.27 Kilograms | | Item model number | SERIOUS MASS CHOCOLATE 6lbs | | Manufacturer | Optimum Nutrition | | Manufacturer | Optimum Nutrition | | Manufacturer Part Number | SERIOUS MASS CHOCOLATE 6lbs | | 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 | | Product Dimensions | 8 x 4 x 6 cm; 272.1 g | | Protein Source | Whey | | Total Servings Per Container | 8 | | UPC | 748927022995 748927070132 | | Unit Count | 2720 Grams | ## Product Details - **Brand:** Optimum Nutrition - **Flavour:** Chocolate - **Item weight:** 0.27 Kilograms - **Material type free:** Finished Product - **Servings per container:** 8 ## Images ![(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) - Image 1](https://m.media-amazon.com/images/I/71qpIQW5NlL.jpg) ## Available Options This product comes in different **Size, Flavor** options. ## Questions & Answers **Q: Can I need one kg** A: 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! **Q: When the date of expiry?** A: 1 year ahead is the minimum requirement of all nutritional stuff in Amazone **Q: Is there a version of this product without creatine?** A: Hi, This product contains Creatine. There is no version of this product without creatine. **Q: What is the expiry date ?** A: October/2022 ## Frequently Bought Together - OPTIMUM NUTRITION Serious Mass Chocolate No Sugar Added, 272.1 g - Optimum Nutrition Gold Standard Whey Protein, Muscle Building Powder with Naturally Occurring Glutamine and Amino Acids, Double Rich Chocolate, 29 Servings, 899 g, Packaging May Vary - Optimum Nutrition Micronised Creatine Powder, 100% Pure Creatine Monohydrate Powder for Performance and Muscle Power, Unflavoured Shake, 93 Servings, 317 g --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.gr/products/249603014-on-serious-mass-high-protein-muscle-building-and-weight-gainer](https://www.desertcart.gr/products/249603014-on-serious-mass-high-protein-muscle-building-and-weight-gainer) --- *Product available on Desertcart Greece* *Store origin: GR* *Last updated: 2026-10-10*