---
product_id: 429215613
title: "Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb"
brand: "syntrax"
price: "$320.39"
currency: USD
in_stock: true
category: "Syntrax"
url: https://www.desertcart.ec/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb
store_origin: EC
region: Ecuador
---

# Sustained-release protein delivery Multi-source protein complex rBST-free, grass-fed whey Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb

**Brand:** syntrax
**Price:** $320.39
**Availability:** ✅ In Stock

## Summary

> 💪 Elevate your gains with the protein blend that works as hard as you do!

## Quick Answers

- **What is this?** Matrix Sustained‑Release Protein Powder Blend, Milk Chocolate 5 lb by syntrax
- **How much does it cost?** $320.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/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:** Ultra-instantized formula dissolves effortlessly with just a spoon—no blender needed
- • **All-Day Muscle Fuel:** Advanced sustained-release blend keeps amino acids flowing for hours
- • **Lean & Low-Carb Power:** Zero sugar and low carbs to fuel lean muscle without the extra bulk
- • **Clean & Premium Protein:** rBST-free, grass-fed whey ensures top-tier nutrition and purity
- • **Complete Recovery Matrix:** Combines whey, micellar casein, egg white, and glutamine peptides for total muscle support

## Overview

Syntrax Matrix is a 5 lb sustained-release protein powder featuring a multi-source complex of ultrafiltered whey, micellar casein, native egg white protein, and glutamine peptides. Designed for continuous amino acid delivery, it supports muscle recovery and growth with premium rBST-free, grass-fed whey, zero sugar, and low carbs. Perfectly instantized for easy mixing, it’s a top choice for fitness enthusiasts seeking clean, long-lasting protein 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!

## Features

- Contains rBST-Free, Grass-Fed Whey
- Undenatured Micellar Casein & Egg White Protein
- Best-Tasting Protein in Water or Milk
- Mixes Instantly
- Kosher & Halal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B089XB2PCL |
| Age Range Description | Adult |
| Allergen Information | Egg may contain, Milk may contain, Soy may contain, Wheat may contain |
| Best Sellers Rank | #20,079 in Grocery & Gourmet Food ( See Top 100 in Grocery & Gourmet Food ) #343 in Powdered Drink Mixes & Flavorings |
| Brand | Syntrax |
| Brand Name | Syntrax |
| Customer Reviews | 4.7 out of 5 stars 57 Reviews |
| Diet Type | Halal, Kosher |
| Flavor | Milk Chocolate |
| Global Trade Identification Number | 00810007540870 |
| Item Dimensions | 7 x 5 x 13 inches |
| Item Highlight | 29 Servings - Sustained-Release Protein Blend, Micellar Casein & Egg White Protein for Use Anytime |
| Item Weight | 2 pounds |
| Manufacturer | Si03, Inc. |
| Manufacturer Part Number | SM2BC |
| Material Type Free | rBST-Free |
| Model Name | av2023-Syntrax-syntrax matrix native grassfed undenatured whey protein micellar casein and egg albumin with glutamine peptides-3f6731c2 |
| Model Number | SM2BC |
| Number of Items | 1 |
| Package Type Name | Pouch |
| Product Benefits | Extra Protein Support, Supports Muscle Endurance, Supports Muscle Growth, Supports Muscle Health |
| Protein | 23 g |
| Protein Source | Blend |
| Recommended Uses For Product | Pre-Workout |
| Servings per Container | 29 |
| Supplement Formulation | Multi-Supplement |
| Total Servings Per Container | 29 |
| UPC | 810007540870 810007540290 |
| Unit Count | 32 Ounce |

## Product Details

- **Brand:** Syntrax
- **Flavor:** Milk Chocolate
- **Item Weight:** 2 pounds
- **Material Type Free:** rBST-Free
- **Servings per Container:** 29

## Images

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

## Available Options

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

## 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

---

## 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.ec/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb](https://www.desertcart.ec/products/429215613-matrix-sustained-release-protein-powder-blend-milk-chocolate-5-lb)

---

*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-11-08*