--- product_id: 725585957 title: "ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas" brand: "optimum nutrition" price: "฿10499" currency: THB in_stock: false reviews_count: 9 url: https://www.desertcart.co.th/products/725585957-on-serious-mass-vanilla-19-2-oz-5455-g-direct store_origin: TH region: Thailand --- # Direct overseas delivery Vanilla flavor for smooth taste 5455g ultra-bulk size ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas **Brand:** optimum nutrition **Price:** ฿10499 **Availability:** ❌ Out of Stock ## Summary > 💪 Bulk up boldly with Serious Mass—because average gains are so last season! ## Quick Answers - **What is this?** ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas by optimum nutrition - **How much does it cost?** ฿10499 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/725585957-on-serious-mass-vanilla-19-2-oz-5455-g-direct) ## 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 - • **Massive 12+ lb Bulk:** Fuel your gains with a serious 5455g supply—stay stocked, stay strong. - • **Creamy Vanilla Flavor:** Indulge in a smooth, classic vanilla taste that makes every shake a treat. - • **Global Direct Delivery:** Get your Serious Mass shipped straight from overseas—exclusive access, no middleman. - • **Unisex & Adult-Focused:** Formulated for all adults aiming to build serious muscle mass. - • **Physician-Recommended Caution:** Designed for responsible use—consult your doctor to maximize safe results. ## Overview ON Serious Mass Vanilla is a 5455g (12+ lb) high-calorie mass gainer powder designed for adults of all genders. Delivered directly from overseas, it offers a creamy vanilla flavor and is intended to support serious muscle growth when used responsibly under medical guidance. ## Description desertcart.co.jp: ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas : Health & Personal Care Review: Fast working - Super working supliment Review: 後悔 ## Features - The color and design of the actual product may differ from the images shown - If you have any disease, please follow the instructions of your physician / When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating. - Do not use over capacity / DO NOT EXCEED RCOMMENDED DOSE. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000GIPJ02 | | ASIN | B000GIPJ02 | | Amazon Bestseller | #175,768 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #5,547 in Sports Nutrition Products | | Customer Reviews | 4.4 4.4 out of 5 stars (6,756) | | Date First Available | January 3, 2012 | | Is Discontinued By Manufacturer | Yes | | Item model number | 1031920 | | Manufacturer | OPTIMUM NUTRITION | | Product Dimensions | 29.21 x 13.97 x 40.64 cm; 5.44 kg | | Product Dimensions | 29.21 x 13.97 x 40.64 cm; 5.44 kg | | Storage Instructions | Store in a cool dry place | | Target Age Range Description | Adult | | Target Gender | Unisex | ## Product Details - **Brand:** Optimum Nutrition - **Diet Type:** Vegetarian - **Flavor:** Vanilla - **Item Weight:** 192 Ounces - **Material Type Free:** Caffeine Free - **Product Benefits:** Muscle Growth - **Protein Source:** Whey - **Recommended Uses For Product:** After Workout, Increased calories, Muscle Growth, Post-Workout, Weight gain - **Servings per Container:** 16.0 - **Unit Count:** 5455 Grams ## Images ![ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas - Image 1](https://m.media-amazon.com/images/I/510JUtwvEyL.jpg) ![ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas - Image 2](https://m.media-amazon.com/images/I/61EkreJhv-L.jpg) ![ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas - Image 3](https://m.media-amazon.com/images/I/61zF8JIwEgL.jpg) ![ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas - Image 4](https://m.media-amazon.com/images/I/61ABPFflknL.jpg) ![ON Serious Mass Vanilla, 19.2 oz (5455 g), Direct Delivery from Overseas - Image 5](https://m.media-amazon.com/images/I/61AbYOXhCwL.jpg) ## Questions & Answers **Q: How well does this work? I'm a teen with a high matabalizum and I'm looking to build mass and bulk up** A: I’m nearly 50 years old, but seeing this question I had to comment. Until I was around 32 or so, I couldn’t gain weight no matter how much I had to eat; or so it seemed. I remember not caring whether it was fat or ideally muscle, I just didn’t want to be skinny anymore. Then I hit a point in my life where the metabolism slowed and I couldn’t keep the weight off. That lasted for nearly 15 years and for some reason my appetite suddenly plummeted and now I’m back looking at weight gainers simply to do nothing more than maintain a healthy weight. Just try to keep in mind that human physiology typically prohibits putting on large amounts of muscle in a short period of time naturally. That means that a large portion of quick gains will be fat. Embrace your high metabolism and shoot for a reasonable goal. That said, the more calories you intake in a day that exceeds what your body can burn, the quicker you will gain weight. For the most part, it’s simple math. Total Intake - Total Burned = Energy Stored Primarily as Fat. There are about 3500 calories in one pound. If you were to forge an extra 3500 calories a day, you could theoretically gain 7 pounds a week. For someone like you, that probably means eating 8,000 calories a day. Now as far as this product goes, it’s one of the highest calorie per serving gainers I have seen and it’s much quicker to pound a shake than to eat a steak! Another thing to keep in mind is that supplements that are fortified with vitamins and minerals, have the potential to far exceed recommended safe values for human consumption. I ran into this when I was your age. I was drinking over a gallon of milk a day, milk is fortified with vitamin D and that build up led to some freaky painful headaches in me personally. Too much calcium can also upset your bodies homeostasis and lead to surprising problems. Being young, your body can handle a lot! Just wanted you to be aware of the things I wish I knew when I was your age. If I were young again I would focus on speed, agility and good clean ripped muscle! Shredded muscle always looks bigger than fat muscle. Cheers! **Q: banana** A: I’m adding my two cents. Chocolate peanut butter is the truth. Banana was good at first, and then it wasn’t. **Q: Does it work without work out ?because im so busy all day** A: First off, I am so sorry that everyone that responded to this question this far hasn't answered your question. I'm seeing you ask if this helps you put on weight without working out. I've seen 3 or 4 people put "no excuses, no short cuts," "no motivation, no nothing" and other meat head answers. I apologize about them =) Getting to your question. Yes, it does help you gain weight even if you're not working out. I understand you're busy...who's not? Working out and drinking this is without question the best way to gain weight. But, for the last 2 weeks I've been drinking a scoop in the morning, and a scoop at night before bed. And I've gained 3 pounds! Doesn't sound like a lot, but if I don't get 6 eggs every morning, I'll loose 2 pounds. If I don't eat 400 calories everyday, I'll loose 2 pounds. I have such a low fat to muscle ratio that if I type it in, people won't believe me, so ill save it for the haters on YouTube (jk) 😅 But yeah, this stuff works. Might jist be a pounds a week, but if you're like me, that's great success. This does work without working out as long as you drink it consistently. Best of luck to you my friend. **Q: will a high intensity sport like basketball plus weight training, 5 days a week lessen the effectiveness of this product??** A: The guy who says this causes cancer is lying or is just ignirant. Some other supplements may but even at that mant studies don't say which ones. Powder prorein supplements do not. As do many men, i don't use this product for muscle gain. I use max muscle for that. I use this for belly fat gaining. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fast working *by T***. on October 5, 2024* Super working supliment ### ⭐ Review *by I***K on September 13, 2023* 後悔 ### ⭐⭐⭐ Price *by A***ー on October 6, 2018* Good for skinny guys because of high calorie Bad because I buy this item 3 times and I paid everytime more money then previous ## Frequently Bought Together - Optimum Nutrition Serious Mass, Weight Gainer Protein Powder with Creatine - Nutricost Creatine Monohydrate Micronized Powder 500G, 5000mg Per Serv (5g) - 100 Servings, 17.9 Oz - VOLTRX Premium Electric Protein Shaker Bottle, Made with Tritan - BPA Free - 24 oz Vortex Portable Mixer Cup/USB Rechargeable Shaker Cups for Protein Shakes --- ## 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.co.th/products/725585957-on-serious-mass-vanilla-19-2-oz-5455-g-direct](https://www.desertcart.co.th/products/725585957-on-serious-mass-vanilla-19-2-oz-5455-g-direct) --- *Product available on Desertcart Thailand* *Store origin: TH* *Last updated: 2026-04-23*