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🚀 Bulk smarter, not harder — Serious Gainz for serious pros.
The Bulk Protein Company's Serious Gainz is a UK-made, high-calorie mass gainer designed for hardgainers and fitness pros aiming for steady muscle growth and weight gain. Each 125g serving packs 460 calories, 27g of a premium protein blend (soy, whey isolate, casein), and 74g of carbs to fuel recovery and performance. Versatile and smooth, it mixes best with milk and comes in five indulgent flavours, supporting your daily calorie surplus with a satisfying, easy-to-drink formula.











| ASIN | B07CGHS11Z |
| ASIN | B07CGHS11Z |
| Age Range Description | Adult |
| Allergen Information | Contains: Oat, Peanuts, Soy |
| Best Sellers Rank | 926 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 16 in Whey Nutrition Protein |
| Brand Name | The Bulk Protein Company |
| Country Of Origin | United Kingdom |
| Country of origin | United Kingdom |
| Customer Reviews | 4.1 4.1 out of 5 stars (1,869) |
| Customer reviews | 4.1 4.1 out of 5 stars (1,869) |
| Diet Type | Vegetarian |
| Flavour | Chocolate |
| Item Dimensions | 29 x 29 x 26 centimetres |
| Item Nype Name | Serious Gainz |
| Item Weight | 5 Kilograms |
| Item model number | B142 |
| Manufacturer | Warrior |
| Manufacturer | Warrior |
| Manufacturer Contact Information | Guinness Road Trading Estate, Unit 1& 3, Guinness Rd, Trafford Park, Stretford, Manchester M17 1SB |
| Manufacturer Part Number | B142 |
| Model Name | Serious Gainz |
| Model Number | B142 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product Dimensions | 29 x 29 x 26 cm; 5 kg |
| Protein Source | Soy, Whey |
| Recommended Uses For Product | Post-Workout |
| Total Servings Per Container | 40.0 |
| Unit Count | 5000.0 gram |
J**A
Using it for years
Been using this product for years... Started at £25 about 7 years ago obviously due to British pound going down in value the price has risen. Still a good price. High carb shake with minimul sugars. I have bought similar products from Holland and Barrett and The sugar content is half the carb intake. I went from 10st to 17 on this in few years I have been taking. I bulk in winter and this helps... after a high calorie breakfast I also down one of these. People say it doesn't go well with water. No protein shakes you will ever take will taste well with water. I use 350ml water 250ml milk and it tastes good! I did a bulk last year I was 15.5st and went upto 18.5 by summer. I gained 1st extra in muscle. I went down to 16.5 off bulk and stayed at that weight even on The cut. I have around ,18% body fat. 22in winter. Also buy serious protein to add that extra 25g to the protein intake. 1.5-2g of protien per kg of body weight. If you not making gainz then you probably not doing this. This product has helped me a lot through out the years and I stand by serious protein and serious gainz to make my gainz.
J**N
HELL YEAH!!
OMG 5 kilos of it!! Absolute bargain!! Ok so I have used it It mixes very easy, not as thick compared to some other shakes but not a problem, it has good protein to carb ratio The flavour yeah it is chocolate-ish but although not heavenly chocolate it is very pleasant to drink, if you wanted to make it really chocolatey get some raw Coco from the shops and mix it in I am thrilled to bits omg 5 kilos of it 😃😃 All in all well worth the money, tastes better than more expensive ones I’ve bought for much less, I will definitely purchase again ...hmmm if only they had Raspberry ripple 😋 10/10 for the amount 5 kilos 😲
A**R
For silm people
I've taken this product sometime about 6 months and an I've gain weight very slowly with each month without I've haven't really changed my diet or anything like that. I been really working out in the gym average about 5 days weekly and some light sessions in my home. I'm 6,3 tall and I find it very hard to get weight I've a very high metabolism so you can guess I'm slim built weighing 12 half stone when I started now I weigh nearly 14 stones which I'm very happy. I've really bulked up so yes it does work as for going to the toilet personally I've haven't had any issues an I drink at least 2-3 times a spend over course of the day . I prefer using water to milk but that's my personal preference. I'm for now very satisfied with the delivery having no issues whatsoever from amazon and hopefully it will remain plus there is a refund policy if anything goes wrong....... The product is not the best for teasing product in the world so please bear that in mind so had some Cadbury hot chocolate 🍫 as mixing others things into or blending.... Personally I don't have any issues with that really good.......if I'm honest this is for people who find it difficult very hard to gain weight and have a high metabolism and want to keep up with the weight gained the price is absolutely brilliant the taste is rubbish overall it works if you put in the effort in the gym etc etc..... 4 stars
J**S
Terrible powder, flavour and does not blend.
Waste of money, the powder hardily blends into a shake even after thoroughly blending. Weak chocolate flavour and just leaves the powder around the inside of your mouth after each drink. This is a poor product and would not recommend to anyone.
C**G
Great value gainer. I like it!
I've been using this for about 3 weeks now and really like it. It's cheap, decent quality, and does the job. The tub was fully sealed unlike some reviewers. I bought the chocolate flavour. It's actually quite nice and a lot better tasting than most powder shakes. Not sure how those who are complaining about the poor mixing are blending theirs, but I use my Nutri Ninja blender and it mixes great. If you don't drink it fairly quickly you do get a little sediment at the bottom (and I mean a little) but a few swirls of your drink container and it's fine. It's easy to get down. I weighed it out and find 4 flat scoops in 500ml of water gives you the 125g you need for 468 calories and 30g of protein. If you wanted to to use 500ml of whole milk instead then that's going to give you an additional (approx.) 300 calories and 17g of protein. So it really depends on how many surplus calories you're needing to start gaining. I've been doing a lot of cardio recently so I have found this gainer actually just keeps my weight consistant - which is great. I know if I wasn't doing cardio then I would definitely have gained weight. I currently have one shake a day but I may increase that to two soon. I expect to see a gain then (will let you know). Remember that this is a food supplement to add surplus calories and protein to your diet. Not some miracle powder. It does what its designed to do. Bar that, I've experienced no ill side effects. No bloating or excessive gas. So no complaints from the other half. If I suddenly go blind or grow an extra testicle in a few weeks I'll let you know. All in all I'm happy with it and think it's great value. I'll definitely be buying another tub!
K**.
Not that high in protein
It's cheaper because you are only getting 22 grams of protein per 100g - basically two full scoops of protein powder is only 22g of protein whereas most other companies two scoops would be 40-50g of protein. It mixes well and easily with water and the chocolate flavour doesn't taste to bad but TWO FULL SCOOPS for only 22 grams of protein is to much powder to ingest!
F**Y
My second order
This was a reorder for my son he swears by this product for maintaining a good balance in his diet, he is not a body builder but just likes to keep his calories up or he becomes to thin, he say it's brilliant and like the taste.
M**D
Thought I’d try a different protein powder and I’m sure it will do the job, But it does not mix well at all and there is very little in the way of chocolate taste. In fact it doesn’t really taste that good as you can taste more of the oat based ingredient. Find a different protein powder to buy and I’ll be going back to my usual one.
Trustpilot
3 weeks ago
1 month ago