Myos Canine Muscle Formula

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MYOS has worked wonders for our dogs, and we are proud to say that thousands of dogs are experiencing the benefits of our unique product.

Simple. Natural. Proven. MYOS uses a single, all-natural ingredient called Fortetropin®. No additives or artificial ingredients. Fortetropin® has been shown in multiple clinical studies to accelerate gains in muscle mass, improve mobility and enhance recovery from injury.

Veterinarian Recommended. Veterinarians reported that older dogs engaged in more physical activity after consuming Fortetropin® and resumed certain activities that were thought to have stopped because of age.

100% Safe. Not only is MYOS safe for your dog, but it’s safe for you too. We wouldn’t feed our dogs something that we wouldn’t be willing to eat ourselves.

Net Weight 12.7 oz (360 g)

120 scoops/container

  • Up to 25 pounds: 1 scoop daily
  • 25-50: 2 scoops daily
  • 50+ Pounds: 4 scoops daily

What Is Fortetropin?

Fortetropin® is a proprietary advanced nutrition product developed and owned by MYOS that has been proven in multiple veterinary clinical studies to build muscle and reduce muscle loss due to aging or injury. 

Foretropin® is a safe & all natural product sourced from fertilized egg yolk that has been clinically proven to support animal muscle health.

Fortetropin® is a unique formula derived from fertilized chicken egg yolks. Our patented process preserves the biological integrity and bio-activity of nutrients in egg yolks. Fortetropin is considered a natural myostatin-reducing agent.

Our scientists have developed a patented process to harness the immense power of fertilized egg yolk – one of nature’s most nutrient-dense substances!

The resulting ingredient is Fortetropin®.

Clinically Proven

MYOS is dedicated to improving our pets lives with products that have been clinically proven to support muscle health. Research has shown that better muscle heath leads to better mobility, vitality and quality of life.


Per 3 g Serving
Calories  19.50 
     From Fat  14.85
Total Fat (g) 1.65g
     Saturated Fat (g) 0.60g
     Trans Fat (g) 0.00g
Cholesterol (mg) 66.00mg
Sodium (mg) 2.85mg 
Total Carbohydrates (g) 0.21g
      Dietary Fiber (g) 0.00g
Protein (g) 0.99g
Vitamin A (mcg) 23.40mcg
Calcium (mg) 7.95mg
Vitamin D (IU) 13.50 IU
Vitamin B1 (mg) 0.01mg
Vitamin B2 (mg) 0.03mg
Vitamin B5 (mcg) 0.18mcg
Vitamin B9 (mcg) 9.00mcg
Iron (mg) 0.17mg
Vitamin C (mg) 0.00mg
Phosphorus (mg) 24.00mg
Zinc (mg) 0.14mg
Magnesium (mg) 0.30mg
Potassium (mg) 6.72mg