---
product_id: 429215613
title: "Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb | Whey Protein, Micellar Casein, Egg Albumin"
brand: "syntrax"
price: "₨4488"
currency: SCR
in_stock: true
reviews_count: 8
url: https://www.desertcart.sc/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb
store_origin: SC
region: Seychelles
---

# 8-hour sustained amino acid release 24g multi-source protein per serving rBST-free, grass-fed whey protein Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb | Whey Protein, Micellar Casein, Egg Albumin

**Brand:** syntrax
**Price:** ₨4488
**Availability:** ✅ In Stock

## Summary

> ⏳ Fuel your gains all day, not just post-workout!

## Quick Answers

- **What is this?** Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb | Whey Protein, Micellar Casein, Egg Albumin by syntrax
- **How much does it cost?** ₨4488 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb)

## 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

- • **Instant Mixability:** Dissolves effortlessly with just a spoon—no blender needed, no clumps, no hassle
- • **Low-Carb, Zero Sugar:** Supports lean muscle development and keeps your macros on point
- • **Sustained-Release Formula:** Continuous amino acid delivery for up to 8 hours—stay fueled beyond your workout
- • **Clean & Premium Ingredients:** rBST-free, grass-fed whey ensures top-tier nutrition without compromise
- • **Power-Packed Protein Matrix:** 24g of ultrafiltered whey, micellar casein & egg albumin fuel muscle growth all day long

## Overview

Syntrax Matrix is a 5 lb sustained-release protein powder blend combining ultrafiltered whey, micellar casein, egg albumin, and glutamine peptides. Designed for continuous amino acid delivery over 8 hours, it supports muscle recovery and growth with premium, rBST-free grass-fed whey and zero sugar, low carbs. Perfect for professionals seeking clean, effective nutrition that fits seamlessly into a busy lifestyle.

## 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!

## Features

- Multi-Source Protein Complex: Features Undenatured Micellar Casein and Egg White Protein for comprehensive muscle recovery and growth
- Sustained-Release Protein Blend: Advanced formula delivers a continuous stream of amino acids throughout the day for optimal muscle support
- Premium Quality Ingredients: Contains rBST-Free, Grass-Fed Whey for superior protein nutrition and quality assurance
- Low Carb Nutrition: Zero sugar and low carbohydrate content supports lean muscle development and fitness goals
- Complete Protein Matrix: Combines ultrafiltered whey protein, micellar casein, native egg white protein, and glutamine peptides for comprehensive amino acid profile

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B09Y2C33YM |
| Best Sellers Rank | #183 in Sports Nutrition Whey Protein Powders |
| Date First Available | April 15, 2022 |
| Item Model Number | SM5MC |
| Manufacturer | Si03, Inc. |
| Product Dimensions | 9 x 6 x 14 inches; 5 pounds |

## Product Details

- **Brand:** Syntrax
- **Flavor:** Milk Chocolate
- **Item Weight:** 5 Pounds
- **Material Type Free:** rBST-Free
- **Servings per Container:** 73

## Images

![Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb | Whey Protein, Micellar Casein, Egg Albumin - Image 1](https://m.media-amazon.com/images/I/71oyjYON0WL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ High Quality, Good Taste, Easy Mix
*by  on Reviewed in the United States June 1, 2026*

Top quality

### ⭐⭐⭐⭐⭐ Love the taste!
*by  on Reviewed in the United States March 2, 2026*

Great taste! My go to for many years now. New packaging design. I’m a milk chocolate fan. I put some ice cubes in, water, half a scoop of protein, and half a banana to start my day. I finish it quickly!

### ⭐⭐⭐⭐⭐ Good just mix it up good
*by  on Reviewed in the United States March 12, 2026*

I like the macros and the taste is good not very chemically . You do have to mix pretty aggressively so don’t expect to use a spoon . Texture is fine when mixed properly.

## Frequently Bought Together

- Syntrax Nutrition Matrix Protein Powder, Sustained-Release Protein Blend, Milk Chocolate, 5 lbs
- Syntrax Matrix Whey Protein, Peanut Butter Cookie, 5 Pound

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**Shop now:** [https://www.desertcart.sc/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb](https://www.desertcart.sc/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb)

---

*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-08-14*