---
product_id: 427816039
title: "Nutrition Matrix - Sustained-Release Protein Blend with RBST-Free Grass-Fed Whey, Micellar Casein & Egg White Protein, Bananas & Cream Flavor, 5 lbs. | Whey Protein, Micellar Casein, Egg Albumin"
brand: "syntrax"
price: "R3211"
currency: ZAR
in_stock: true
reviews_count: 8
category: "Syntrax"
url: https://www.desertcart.co.za/products/427816039-nutrition-matrix-sustained-release-protein-blend-with-rbst-free-grass
store_origin: ZA
region: South Africa
---

# Sustained-release protein blend rBST-free grass-fed whey Micellar casein & egg white protein Nutrition Matrix - Sustained-Release Protein Blend with RBST-Free Grass-Fed Whey, Micellar Casein & Egg White Protein, Bananas & Cream Flavor, 5 lbs. | Whey Protein, Micellar Casein, Egg Albumin

**Brand:** syntrax
**Price:** R3211
**Availability:** ✅ In Stock

## Summary

> 🍌 Fuel your hustle with the protein blend that works as hard as you do!

## Quick Answers

- **What is this?** Nutrition Matrix - Sustained-Release Protein Blend with RBST-Free Grass-Fed Whey, Micellar Casein & Egg White Protein, Bananas & Cream Flavor, 5 lbs. | Whey Protein, Micellar Casein, Egg Albumin by syntrax
- **How much does it cost?** R3211 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/427816039-nutrition-matrix-sustained-release-protein-blend-with-rbst-free-grass)

## Best For

- syntrax enthusiasts

## Why This Product

- Trusted syntrax brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Timed Muscle Fuel:** Sustained-release blend delivers 23g protein per serving for all-day recovery and growth.
- • **Pure & Clean Source:** rBST-free, grass-fed whey ensures premium quality without unwanted hormones.
- • **Triple Protein Power:** Ultrafiltered whey, micellar casein, and egg white protein combine for fast, medium, and slow digestion.
- • **Effortless Mixability:** Instantizes perfectly—just a spoon and a quick stir for smooth, clump-free shakes anytime.
- • **Flavor That Fits Your Lifestyle:** Bananas & Cream flavor offers a natural, crave-worthy taste that works great in water, milk, or recipes.

## Overview

Syntrax Matrix is a 5 lb sustained-release protein powder featuring a premium blend of rBST-free grass-fed whey, micellar casein, and egg white protein. Each serving delivers 23 grams of high-quality protein designed for muscle growth, recovery, and weight management. Its instant mixability and delicious Bananas & Cream flavor make it a versatile choice for busy professionals seeking clean, effective nutrition.

## Description

Matrix is a sustained release protein blend that derives from ultrafiltered whey protein, ultrafiltered micellar casein, native egg white protein and glutamine peptides. Matrix is thoroughly instantized so that every scoop dissolves perfectly in your favorite beverage using only a spoon for vigorous stirring. Matrix is available in 11 amazing flavors!

Review: My favorite banana protein powder - I’m sad to see this item is no longer available because it has become my favorite protein powder. I love the packaging (I’m not a fan of the large canisters) which makes it easier to retrieve the product as you get closer to the bottom. The quality of the powder is noticeably better than those I’ve tried in the past. I enjoy the flavoring, mixability, and how easy it is to add to almost any breakfast dish or baked good.
Review: Matrix protein - Syntrax Matrix is a great protein mix that consists of three different protein types releasing in different way/time + several important Amino Acids. Use it for many years since it’s really best-tasting protein. Mixes well and easily with milk or milk/water in shaker bottle or blender cup. My absolute favorite is cookies&cream, but this new banana&cream tastes rather good (not too strong, not too artificial, close to banana milk shake taste).

## Features

- Sustained-Release Protein Blend
- Contains rBST-Free, Grass-Fed Whey
- Undenatured Micellar Casein & Egg White Protein
- Best-Tasting Protein in Water or Milk
- Mixes Instantly with just a spoon

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09X6B5JXS |
| Age Range Description | Adult |
| Allergen Information | Egg may contain, Milk may contain, Soy may contain, Wheat may contain |
| Best Sellers Rank | #190,472 in Health & Household ( See Top 100 in Health & Household ) #597 in Sports Nutrition Whey Protein Powders |
| Brand | Syntrax |
| Brand Name | Syntrax |
| Customer Reviews | 4.6 out of 5 stars 59 Reviews |
| Diet Type | Halal, Kosher, Vegetarian |
| Flavor | Bananas & Cream |
| Item Dimensions | 9 x 6 x 14 inches |
| Item Nype Name | Protein Powder |
| Item Weight | 5 Pounds |
| Manufacturer | Si03, Inc. |
| Manufacturer Part Number | SM5BC |
| Material Type Free | rBST-Free |
| Model Name | Matrix |
| Model Number | SM5BC |
| Number of Items | 1 |
| Package Type Name | Pouch |
| Product Benefits | Muscle Growth, Muscle Recovery, Weight Loss |
| Protein | 23 Grams |
| Protein Source | Blend |
| Recommended Uses For Product | Pre-Workout |
| Servings per Container | 76 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 76 |
| UPC | 810007540535 |
| Unit Count | 80.0 Ounce |
| Warranty Description | Satisfaction Guaranteed |

## Product Details

- **Brand:** Syntrax
- **Diet Type:** Halal, Kosher, Vegetarian
- **Flavor:** Bananas & Cream
- **Material Type Free:** rBST-Free
- **Servings per Container:** 76

## Images

![Nutrition Matrix - Sustained-Release Protein Blend with RBST-Free Grass-Fed Whey, Micellar Casein & Egg White Protein, Bananas & Cream Flavor, 5 lbs. | Whey Protein, Micellar Casein, Egg Albumin - Image 1](https://m.media-amazon.com/images/I/710gWT8d3HL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ My favorite banana protein powder
*by R***. on October 28, 2022*

I’m sad to see this item is no longer available because it has become my favorite protein powder. I love the packaging (I’m not a fan of the large canisters) which makes it easier to retrieve the product as you get closer to the bottom. The quality of the powder is noticeably better than those I’ve tried in the past. I enjoy the flavoring, mixability, and how easy it is to add to almost any breakfast dish or baked good.

### ⭐⭐⭐⭐⭐ Matrix protein
*by A***R on June 23, 2022*

Syntrax Matrix is a great protein mix that consists of three different protein types releasing in different way/time + several important Amino Acids. Use it for many years since it’s really best-tasting protein. Mixes well and easily with milk or milk/water in shaker bottle or blender cup. My absolute favorite is cookies&cream, but this new banana&cream tastes rather good (not too strong, not too artificial, close to banana milk shake taste).

### ⭐⭐⭐⭐ More “Banana Cake” Than Bananas & Cream
*by H***D on March 25, 2026*

Like other protein powders from Syntrax, the quality is solid. It mixes well, has a smooth texture, and performs as expected from a nutritional standpoint. The main differentiator here is the flavor. Despite the name, it doesn’t really taste like a classic bananas-and-cream profile. Instead, it comes across more like a banana cake -- slightly sweet, with a noticeable “baked” flavor. It’s not bad, but it does lean a bit artificial and may not match what some people expect from the label. For me, it’s good but not a top-tier flavor. I’d use it again if needed, but I’d choose other flavors (like Chocolate Supreme) first if they’re available. Overall, a solid protein powder with dependable performance, but the flavor is more niche than the name suggests.

## Frequently Bought Together

- Syntrax Nutrition Matrix, Sustained-Release Protein Blend, Bananas and Cream, 5 lb
- Kaged Creatine HCl Powder, Fruit Punch, Supports Muscle Growth and Recovery, Patented Creatine Hydrochloride Formula, Easy Digestion and Enhanced Muscle Absorption, 75 Servings

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-07-01*