---
product_id: 65404943
title: "MuscleMx Muscle Supplement for Horses, 10 lb, 106 Servings"
brand: "formula 707"
price: "$291.87"
currency: USD
in_stock: true
reviews_count: 8
category: "Formula 707"
url: https://www.desertcart.us/products/65404943-musclemx-muscle-supplement-for-horses-10-lb-106-servings
store_origin: US
region: United States of America
---

# ATP energy boost via Creatine 4 key muscle-building ingredients Made in Colorado, USA MuscleMx Muscle Supplement for Horses, 10 lb, 106 Servings

**Brand:** formula 707
**Price:** $291.87
**Availability:** ✅ In Stock

## Summary

> 🏇 Unlock Peak Equine Performance with Formula 707 MuscleMx!

## Quick Answers

- **What is this?** MuscleMx Muscle Supplement for Horses, 10 lb, 106 Servings by formula 707
- **How much does it cost?** $291.87 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/65404943-musclemx-muscle-supplement-for-horses-10-lb-106-servings)

## Best For

- formula 707 enthusiasts

## Why This Product

- Trusted formula 707 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Metabolic Edge with OKG:** Bypasses metabolic blockers to accelerate new muscle development.
- • **Energy-Boosting Creatine:** Supercharges muscle cells with ATP for sustained performance.
- • **Synergistic Muscle Power:** Four natural ingredients combine to maximize muscle growth and definition.
- • **Trusted Heritage Formula:** Crafted by John Ewing Company since 1946, a legacy of equine excellence.
- • **Lysine-Driven Protein Build:** Essential amino acid fuels muscle protein synthesis for visible gains.

## Overview

Formula 707 MuscleMx is a 10 lb equine supplement expertly formulated with Lysine, Gamma Oryzanol, Creatine, and Ornithine-A-Ketoglutarate (OKG) to support muscle building and conditioning. Manufactured in Colorado by the trusted John Ewing Company since 1946, it enhances your horse’s metabolism to promote muscle mass, energy, and overall performance. Highly rated and a top choice for horse weight building supplements.

## Description

desertcart.com : Formula 707 MuscleMx Equine Supplement, 10 lb Bag – Conditioning Support and Muscle Builder for Horses with Lysine, Gamma Oryzanol, Creatine & OKG : Pet Supplies

Review: AMAZING! - Working well after 32 servings. Definitely going to buy more! First photo was the day I started and the last 3 are most recent!
Review: Love this brand - I love this product I waited to write my review so I could give a honest review and 707 supplements have all worked amazing non our horse must by !!! And they are cheaper on desertcart

## Features

- Empower your horse's metabolism to build optimum definition and muscle mass.
- Combines four natural ingredients that synergistically encourage muscle-building metabolic reactions.
- Lysine, an amino acid, aids in developing muscle-building proteins; Gamma oryzanol encourages weight gain and muscle formation.
- Creatine helps supply energy to muscle cells by stepping up production of ATP; Ornithine-A-Ketoglutarate (OKG) helps the body bypass metabolic processes that prevent new muscle development.
- Formulated and manufactured by John Ewing Company in Colorado, USA, where we've been Helping Horses Succeed Since 1946

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01AE0CSWS |
| Active Ingredients | amino acid |
| Best Sellers Rank | #26,245 in Pet Supplies ( See Top 100 in Pet Supplies ) #1 in Horse Weight Building Supplements |
| Brand | Formula 707 |
| Brand Name | Formula 707 |
| Customer Reviews | 4.6 out of 5 stars 123 Reviews |
| Flavor | Unflavored |
| Included Components | As shown. |
| Item Form | Pellet |
| Item Weight | 10 Pounds |
| Manufacturer | John Ewing Company |
| Manufacturer Part Number | 21279021 |
| Model Number | 21279021 |
| Number of Items | 1 |
| Specific Uses For Product | Muscle Development |
| Target Species | Horse |
| UPC | 765616105005 |
| Unit Count | 10.00 Pounds |

## Product Details

- **Active Ingredients:** amino acid
- **Brand:** Formula 707
- **Flavor:** Unflavored
- **Item Form:** Pellet
- **Item Weight:** 10 Pounds

## Images

![MuscleMx Muscle Supplement for Horses, 10 lb, 106 Servings - Image 1](https://m.media-amazon.com/images/I/71V2aKauYIL.jpg)

## Available Options

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

## Questions & Answers

**Q: What age can you start giving this?**
A: Formula 707 MuscleMx is safe to administer to yearlings.

**Q: is this powder or pellet?**
A: This is a pelleted product.

## Customer Reviews

### ⭐⭐⭐⭐⭐ AMAZING!
*by Z***H on May 4, 2026*

Working well after 32 servings. Definitely going to buy more! First photo was the day I started and the last 3 are most recent!

### ⭐⭐⭐⭐⭐ Love this brand
*by R***R on June 6, 2026*

I love this product I waited to write my review so I could give a honest review and 707 supplements have all worked amazing non our horse must by !!! And they are cheaper on Amazon

### ⭐⭐⭐⭐ It helps my horse
*by R***. on February 3, 2026*

This really works great on my 19year horse hes a good trail rider

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-12*