

NASA-Researched Essential Aminos
Key Features & Benefits
- Rapid Recovery
- Builds & Preserves Muscle
- Clinically Proven
- Clean Zero-Sugar Amino Acid
Capsules
Clinically proven to fuel muscle growth, recovery, and performance — in just 3.6g per serving
- NASA-Researched Formula - Developed by Dr. Robert Wolfe, world leader in amino acid science, based on research originally funded to protect astronauts' muscles in space.
- More Effective Than Whey Protein - Clinically shown to match the muscle-building effects of 15g whey protein with only 3.6g of essential amino acids.
- Rapid Muscle Recovery & Strength - Promotes lean muscle growth, reduces soreness, and supports peak training performance.
- Tasteless, odorless, easy to swallow vegan capsules.
- Made in USA & Third-Party Tested - Produced in GMP-certified facilities to ensure purity, potency, and safety.
The Science of Muscle Code & How it’s Made
What you can find in Muscle Code
- Clinically Proven Amino Acids
- Vegan & Clean Formula
- Zero Sugar & No Artificial Flavors
- Electrolytes & Enzymes
- Researched & Developed Backed by amino acid science
- Made in a GMP-Certified Facility
- Gluten Free, Dairy Free, Soy Free, Nut Free, Shellfish Free

Backed by Our Advisory Board

Dr. Smith Johnston
Dr. Smith Johnston is a leading expert in space medicine with more than 25 years as a NASA Flight Surgeon, where he cared for astronauts, supported over 25 Space Shuttle missions, and led medical systems for the ISS. As Medical Director at Johnson Space Center, he oversaw astronaut medical standards, fatigue management, and human performance programs. He now serves as Chief Medical Officer at Axiom Space, guiding crew health and readiness for private astronaut missions. Board-certified in Aerospace Medicine, he also teaches at the University of Texas Medical Branch and advises Timeshifter. His work has been widely recognized in media outlets including NOVA, Scientific American, and The New York Times.
Aerospace Medicine Specialist
Dr. Robert Wolfe
Dr. Robert Wolfe, a leading researcher in muscle metabolism, has spent decades uncovering the power of amino acids in human health. With a career rooted in clinical research and physiology, he became particularly intrigued by how the body repairs and builds muscle—especially in aging populations and athletes.His research led to a groundbreaking discovery: essential amino acids (EAAs) play a far more critical role than previously thought. Unlike complete proteins, EAAs could stimulate muscle protein synthesis rapidly, even without exercise. This had profound implications—not just for body builders, but for older adults losing muscle mass, patients recovering from surgery, and anyone looking to improve recovery and performance.
The Amino Acid Pioneer: Dr. Robert WolfKey Ingredients
EAAlpha® Reginator Essential Amino Acids Powder Premix (3600 mg)
- L-Leucine
- L-Lysine HCl
- L-Valine
- L-Isoleucine
- L-Arginine
- L-Threonine
- L-Phenylalanine
- L-Methionine
- L-Histidine
- L-Tryptophan
Other Ingredients
- Malic Acid
- Pyure Organic Stevia (Rebaudioside A)
- Red Beet Juice Powder
- Natural Flavor
- Silicon Dioxide
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