---
product_id: 641207321
title: "SERIOUS Protein – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Salted Caramel)"
brand: "the bulk protein company"
price: "¥33646"
currency: JPY
in_stock: true
reviews_count: 8
category: "The Bulk Protein Company"
url: https://www.desertcart.jp/products/641207321-serious-protein-protein-powder-4kg-low-carb-supports-lean-muscle
store_origin: JP
region: Japan
---

# fast + slow release proteins 24g protein/serving 114 calories, low carb SERIOUS Protein – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Salted Caramel)

**Brand:** the bulk protein company
**Price:** ¥33646
**Availability:** ✅ In Stock

## Summary

> 🔥 Fuel your hustle with Serious Protein — bulk up without the bulk price!

## Quick Answers

- **What is this?** SERIOUS Protein – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Salted Caramel) by the bulk protein company
- **How much does it cost?** ¥33646 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/641207321-serious-protein-protein-powder-4kg-low-carb-supports-lean-muscle)

## Best For

- the bulk protein company enthusiasts

## Why This Product

- Trusted the bulk protein company brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile & Delicious:** Salted caramel flavor shines with milk or in smoothies—your new go-to recovery shake.
- • **Lean & Clean Nutrition:** Only 114 calories per serving with low carbs and fats—perfect for calorie-conscious pros.
- • **Bulk Value, Serious Gains:** 133 servings per tub means you’re stocked for over 6 weeks of consistent progress.
- • **Power-Packed Protein Punch:** 24g of premium protein fuels lean muscle growth and rapid recovery.
- • **Triple-Action Protein Blend:** Fast, medium, and slow-digesting proteins deliver sustained muscle nourishment all day.

## Overview

Serious Protein by The Bulk Protein Company is a 4kg low-carb protein powder delivering 24g of a premium whey, casein, and soy blend per serving. Designed for lean muscle growth and fast recovery, it offers 133 servings at just 114 calories each, making it an ideal, cost-effective choice for professionals balancing fitness and busy lifestyles. The salted caramel flavor mixes best with milk for a creamy, satisfying shake.

## Description

Product Description In short, Serious Protein is the perfect protein powder for those looking to support muscle gains, or if you're on a calorie-controlled diet and trying to lean out. It's designed to fit into every serious athlete's lifestyle by combining fast, slow, and medium speed digestion proteins into the same formula resulting in exceptional nutrient delivery and incredible results. Serious Protein is not about fancy packaging, high-carb flavours, or the rip-off pricing... it's about amazing value, huge protein levels, and incredible results in your training and diet. Ingredients Ingredients: SOYA Protein Isolate, Skimmed MILK Powder, Glutamine Peptides (GLUTEN), MILK Protein Concentrate, Maltodextrin, Flavouring, Salt, Sweetener (Sucralose) | For Allergens, please see ingredients in bold / CAPITALS. May also contain EGG, MILK, GLUTEN, SOYA, NUTS and PEANUTS. Directions Mix 1 rounded scoop (30g) with 250ml of water and shake well before use. Once the shake is prepared consume the same day. Safety Warning Warning: Please discontinue use if you experience any adverse reactions. Do not exceed recommended daily dose. Manufacturer Contact Information Distributed by: KBF Enterprises Unit 1, Guinness Rd Trading Est, Guinness Road, M17 1SB

Review: Overview - Flavour is very weak with this power. Could do with a more powerful flavour. Great price for the amount of protein you get, Needs thorough shake so there are no lumps of protein when you drink.
Review: Massive Value for Money, Taste is Acceptable - I picked up this 4kg tub of the Salted Caramel "Serious Protein" primarily because of the price-per-serving ratio. With 133 servings listed on the tub, the value proposition is hard to ignore compared to smaller premium brands. After working my way through the first kilogram, here is my honest breakdown. The Packaging & Size First off, be warned: this tub is enormous. It barely fits in my standard kitchen cupboard. If you have limited storage, you might want to decant this into smaller containers. The lid seals well, which is crucial for a bulk buy this size to prevent the powder from clumping over the months it takes to finish. Flavor & Texture (Salted Caramel) With Water: It mixes relatively thinly. The flavor is sweet, perhaps a little artificial on the aftertaste, but drinkable. It doesn't have that thick, milkshake consistency when mixed with water alone. With Milk: This is where it shines. It becomes much creamier and the "salted" note comes through better, masking the artificial sweetener taste. Mixability: I use a standard shaker with a metal ball. It mixes about 90% well, but I do notice occasional small clumps if I don't shake it vigorously for a good 45 seconds. It's not the finest milled powder I've used, but acceptable for the price. Nutritional Value For a "Serious Protein" blend, the macros are solid for lean muscle support. It is low carb, which fits my current diet macros well. However, note that this is a soy/whey blend (check the ingredients label carefully), which explains the slightly different texture compared to 100% Whey Isolate.

## Features

- ✅ 24g PROTEIN PER SERVING TO BUILD LEAN MUSCLE - A convenient way to help meet your daily protein needs. Use after training to quickly heal micro-tears in muscle tissues, speed up recovery and reduce muscle soreness for STRONGER and BIGGER muscles over time.
- ✅ HIGH PROTEIN, LOW CALORIES, LOW CARBS - Only 114 Calories Per Serving! Serious Protein powder is 80% Protein with Low Carbs, Sugars, and Fats. Ideal for adding LEAN MASS! Perfect to use as a meal replacement or part of a calorie-controlled diet, while trying to lean out, or for those simply looking to support MUSCLE GAINS.
- ✅ HIGH QUALITY INGREDIENTS - Premium blend of Whey Protein Concentrate, Micellar Casein and Soy Protein Isolate, a combination of slow and fast releasing proteins for total protein synthesis throughout the day. Also contains GLUTAMINE PEPTIDE, essential for muscle recovery and more bioavailable than regular glutamine, helping aid MUSCLE GROWTH.
- ✅ PROTEIN SHAKE THAT TASTES GREAT - Add 1 rounded scoop (30g) to 250ml of cold water or skimmed milk and shake well to create a great tasting Protein Shake! Can also be enjoyed in smoothies, with oats or when added to a pancake mix. For best results consume 1 serving (30g) one to three times per day
- ✅ EXCELLENT VALUE - More than 6 weeks supply in one tub, when following our recommended servings. Comes with scoop for measurements.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D4ZHFPCZ |
| Age Range Description | Adult |
| Allergen Information | Contains: Milk, Soy, Wheat |
| Benefits | Muscle Growth |
| Best Sellers Rank | 656 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 12 in Protein Nutrition Blends |
| Brand | The Bulk Protein Company |
| Brand Name | The Bulk Protein Company |
| Customer Reviews | 3.9 out of 5 stars 128 Reviews |
| Flavour | Salted Caramel |
| Item Dimensions | 28.5 x 28.5 x 26 centimetres |
| Item Nype Name | Serious Protein |
| Item Weight | 4 Kilograms |
| Item weight | 4 Kilograms |
| Manufacturer | KBF Enterprises |
| Manufacturer Contact Information | Distributed by: KBF Enterprises Unit 1, Guinness Rd Trading Est, Guinness Road, M17 1SB |
| Manufacturer Part Number | B150 |
| Model Name | Serious Protein |
| Model Number | B150 |
| Number of Items | 1 |
| Package Type Name | Tub |
| Product benefits | Muscle Growth |
| Servings per container | 133 |
| Total Servings Per Container | 133 |
| Unit Count | 4000.0 Grams |
| Unit count | 4000.0 Grams |

## Product Details

- **Age range (description):** Adult
- **Brand:** The Bulk Protein Company
- **Flavour:** Salted Caramel
- **Item dimensions L x W x H:** 28.5 x 28.5 x 26 centimetres
- **Item form:** Powder
- **Item weight:** 4 Kilograms
- **Number of items:** 1
- **Package information:** Tub
- **Product benefits:** Muscle Growth
- **Unit count:** 4000.0 gram

## Images

![SERIOUS Protein – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Salted Caramel) - Image 1](https://m.media-amazon.com/images/I/71vRFoxVEsL.jpg)

## Available Options

This product comes in different **Size, Flavor** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Overview
*by J***S on 13 January 2026*

Flavour is very weak with this power. Could do with a more powerful flavour. Great price for the amount of protein you get, Needs thorough shake so there are no lumps of protein when you drink.

### ⭐⭐⭐⭐ Massive Value for Money, Taste is Acceptable
*by C***N on 19 November 2025*

I picked up this 4kg tub of the Salted Caramel "Serious Protein" primarily because of the price-per-serving ratio. With 133 servings listed on the tub, the value proposition is hard to ignore compared to smaller premium brands. After working my way through the first kilogram, here is my honest breakdown. The Packaging & Size First off, be warned: this tub is enormous. It barely fits in my standard kitchen cupboard. If you have limited storage, you might want to decant this into smaller containers. The lid seals well, which is crucial for a bulk buy this size to prevent the powder from clumping over the months it takes to finish. Flavor & Texture (Salted Caramel) With Water: It mixes relatively thinly. The flavor is sweet, perhaps a little artificial on the aftertaste, but drinkable. It doesn't have that thick, milkshake consistency when mixed with water alone. With Milk: This is where it shines. It becomes much creamier and the "salted" note comes through better, masking the artificial sweetener taste. Mixability: I use a standard shaker with a metal ball. It mixes about 90% well, but I do notice occasional small clumps if I don't shake it vigorously for a good 45 seconds. It's not the finest milled powder I've used, but acceptable for the price. Nutritional Value For a "Serious Protein" blend, the macros are solid for lean muscle support. It is low carb, which fits my current diet macros well. However, note that this is a soy/whey blend (check the ingredients label carefully), which explains the slightly different texture compared to 100% Whey Isolate.

### ⭐⭐⭐⭐⭐ It's not winning awards, but it's not terrible and does the job. Excellent price per kg.
*by M***S on 9 September 2025*

Got salted Caramel Flavour. Peoples negative reviews of this stuff is absolutely unjustified. It's really not bad considering its low sugar content, like at very worst I would rate the taste as Meh, smells OK but no it's not winning any awards. Don't like the taste or texture? Mix something with it which changes the taste and texture profile. Lumpy? Put water in first and shake it quickly, use a chopstick to unstick lumps stuck on sides or even use a whisk. It's really cost effective protein powder that serves its purpose and all protein powder tastes a bit rubbish.

## Frequently Bought Together

- SERIOUS Protein – Protein Powder – 4kg – Low Carb – Supports Lean Muscle Growth – Recovery Supplement - The Bulk Protein Company - 133 Servings (Salted Caramel)
- Warrior Protein Shaker Bottle, Includes Wire Mixball Blender – 600ml – Perfect for Mixing Powdered Shakes, Clear, BPA Free, Dishwasher Safe

---

## 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.jp/products/641207321-serious-protein-protein-powder-4kg-low-carb-supports-lean-muscle](https://www.desertcart.jp/products/641207321-serious-protein-protein-powder-4kg-low-carb-supports-lean-muscle)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-03-18*