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- Serious Gainz Bulk Mass Gainer Protein Powder...
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Item #:
6590312
Serious Gainz Bulk Mass Gainer Protein Powder 5kg Weight Gain Shake
89% of respondents would recommend this to a friend
Item #:
6590312
XCD 193
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from UK
In stock
Imported from UK store
Order now and get it around Saturday, August 15
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Serious Gainz from The Bulk Protein Company is one of our most popular protein powders and mass gainers.
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What Stands Out
High Protein Content
Delivers 30g of premium whey protein per serving, significantly supporting muscle growth and recovery for serious athletes and fitness enthusiasts aiming to increase their mass effectively.
Large Quantity
Packed in a generous 5kg container, providing excellent value for long-term use, ideal for bulk purchasers seeking sustained energy and muscle gain without frequent repurchases.
Flavor Variety
Available in a delightful vanilla flavor, ensuring a tasty experience that can easily mix with shakes or recipes, catering to all preferences while maintaining nutritional effectiveness.
Product Details
- HIGH-CALORIE MASS GAIN FORMULA WITH ~27G PROTEIN PER SERVING – SERIOUS GAINZ by The Bulk Protein Company delivers approximately 460 calories, 27g protein and 74g carbs per serving, helping support a consistent calorie surplus. Designed for hardgainers and anyone looking to increase size and strength, it supports muscle recovery, training performance and steady weight gain when combined with a structured nutrition plan.
- SUPPORTS MUSCLE GROWTH & POST-WORKOUT RECOVERY – Each serving provides a balanced blend of protein and carbohydrates to replenish energy after training and support lean muscle growth. The combination of soy protein, whey isolate, casein and oat flour delivers both fast and sustained amino acid release, helping refuel muscles, restore glycogen levels, maintain a high daily protein intake and support performance between sessions.
- MIXES BEST WITH MILK FOR A SMOOTHER, MORE ENJOYABLE SHAKE – As a bulking protein powder, SERIOUS GAINZ can be prepared with water or milk, though many users prefer milk for a smoother, richer and more consistent texture. Adding liquid first, shaking thoroughly or using a blender helps reduce clumps and creates a creamier shake that’s easier to drink during heavy bulking phases. This preparation method makes each serving more enjoyable and supports daily consistency as calorie needs increase.
- SMOOTH, SWEET FLAVOUR EXPERIENCE YOU CAN ENJOY DAILY – This whey protein powder delivers a rich, dessert-style taste that makes each protein shake enjoyable as part of your daily bulking routine. Available in popular flavours such as Chocolate, Cookies & Cream, Vanilla, Strawberry and Banana, it offers options suited to both classic and dessert-style preferences. Whether you mix it with water or milk, or blend it into oats and smoothies, the flavour stays satisfying across long bulking phases.
- FILLING FORMULA DESIGNED TO HELP MAINTAIN A DAILY CALORIE SURPLUS – This mass gainer delivers a dense, satisfying shake that helps men and women stay on track with daily calorie targets during bulking phases. Its naturally filling consistency supports a sustained surplus, while starting with smaller servings, adding more liquid or spacing intake can help maintain comfortable, consistent nutrition throughout the day.
| Flavour | Chocolate |
| Diet Type | Vegetarian |
| Protein Source | Soy, Whey |
| Brand Name | The Bulk Protein Company |
| Package Type Name | Tub |
| Age Range Description | Adult |
| Model Name | Serious Gainz |
| Country Of Origin | United Kingdom |
| Item Nype Name | Serious Gainz |
| Manufacturer Contact Information | Guinness Road Trading Estate, Unit 1& 3, Guinness Rd, Trafford Park, Stretford, Manchester M17 1SB |
| Manufacturer | Warrior |
| Model Number | B142 |
| Manufacturer Part Number | B142 |
| Item Weight | 5 Kilograms |
| Item Dimensions | 29 x 29 x 26 centimetres |
| Total Servings Per Container | 40.0 |
| Unit Count | 5000.0 gram |
| Number of Items | 1 |
| Recommended Uses For Product | Post-Workout |
| Allergen Information | Contains: Oat, Peanuts, Soy |
| Brand | The Bulk Protein Company |
| Servings per container | 40.0 |
| Package type | Tub |
Who Should Buy?
-
Athletes in Training
Ideal for athletes looking to increase muscle mass and enhance recovery post-training with high protein content.
-
Hardgainers
Perfect for individuals struggling to gain weight due to fast metabolism and needing a high-calorie supplement.
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Bodybuilders
Beneficial for bodybuilders looking to support their rigorous training regimes and achieve serious muscle gain.
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Weight Watchers
Unsuitable for individuals focused on calorie reduction or weight loss, as it's a high-calorie mass gainer.
Product Description
Dietary Supplement Disclaimer
Statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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Customer Questions & Answers
-
Question:
What are the main ingredients of Serious Gainz?
Answer: The main ingredients include Maltodextrin, OAT Flour, SOY Protein Isolate, Whey (MILK) Protein Isolate, Casein (MILK) Whey (MILK) Protein Concentrate, Cocoa Powder, Flavouring, and Sweetener (Sucralose) -
Question:
How should I consume Serious Gainz?
Answer: Mix 3 scoops (125g) of Serious Gainz with 400-500ml of water and consume the same day. -
Question:
Who should use Serious Gainz?
Answer: Serious Gainz is intended for use by healthy adults, over the age of 18.
The Bulk Protein Company Whey Proteins B142 Editorial Review
Serious Gainz from The Bulk Protein Company is a high-quality mass gainer powder that helps you to meet your daily protein and calorie requirements. The product is available in various flavours, including banana. It is vegetarian-friendly and does not contain any added creatine or BCAAs. It is easy to mix and can be Consumed with milk or water to create a delicious drink. The product comes in a 5kg tub. In general, customers are happy with Serious Gainz. They report that it is a great value for the price and tastes good when mixed with water or milk. However, some customers have reported issues with damp powder and damaged lids, which may suggest quality control concerns. Also, some customers have found the Banana flavour to be too fine, leading to less longevity than other flavours.
Customer Reviews & Ratings
1911 customers ratings
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5 Star
60%
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4 Star
15%
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3 Star
10%
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2 Star
4%
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1 Star
11%
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Pros
- Good value for the price
- Vegetarian-friendly
- No added creatine or BCAAs
- Mixes easily
- Multiple flavours available
Platform Trust & Buyer Confidence
MA
Mohammad
Verified buyer
“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”
23 July 2026 · via Trustpilot
CK
Chitra
Verified buyer
“The order and delivery progress was communicated very well. Package arrived within the estimated time. Products arrived as expected in good condition.”
22-Jul-26 · via Trustpilot
K
kund
Verified buyer
“Good supply of products. Safe payment methods, and shipment worldwide! Genuine products.”
23-Jul-26 · via Trustpilot
OO
Onesi
Verified buyer
“Was my first time buying a product from Ubuy, but I found it so helpful. This is reliable. Gonna place a new order!”
22 July 2026 · via Trustpilot
SJ
SAO JOHN
Verified buyer
“Ubuy is a great online platform to buy stuff. Reliable, fast delivery time and great value for money. I've been using Ubuy online shopping platform for three years now and will continue to do so.”
23 July 2026 · via Trustpilot
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XCD 193
Order now and get it around Saturday, August 15
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Features & Benefits
- Serious Gainz is a popular protein powder and mass gainer.
- Contains a blend of ingredients including Maltodextrin, OAT Flour, SOY Protein Isolate, Whey (MILK) Protein Isolate, Casein (MILK) Whey (MILK) Protein Concentrate, Cocoa Powder, Flavouring, and Sweetener (Sucralose)
- Chocolate flavor protein shake with sweeteners
- Mix 3 scoops (125g) with 400-500ml of water
- Intended for use by healthy adults, over the age of 18
- Please store in a cool, dry place, out of reach of children
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