What age can you start giving this?

Formula 707 MuscleMx is safe to administer to yearlings.

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Formula 707 MuscleMx Muscle Supplement for Horses, 10 lb, 106 Servings

Product ID: 65404943

Details

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

⚡ATP energy boost via Creatine

💪4 key muscle-building ingredients

🇺🇸Made in Colorado, USA

$303.19

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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Description

🏇 Unlock Peak Equine Performance with Formula 707 MuscleMx!

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.

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.

Specifications

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

Reviews

Z**H

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!

4.05.2026

R**R

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 Amazon

6.06.2026

R**.

It helps my horse

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

3.02.2026

T**I

No Flies!!

Love the product and it worked. My barn had little to no flies in it after I started using

11.03.2026

L**T

Formula 707

So far my horse is liking the taste of this product. Hoping to see a difference in 30 days so I can continue giving it to him.

13.01.2026

D**L

MuscleMx

I only use products from 707. This muscleMx is new to me, I've just started my EPM mare on it a couple of weeks ago. Have noticed she runs alot now has pep to her step. Lol I think i should start seeing results in another couple of weeks.

2.01.2026

M**N

707

Exelente producto y calidad 100%

1.02.2026

A**R

707

Love all your products

15.12.2025

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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$303.19

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to USA.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

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