Description

Optimize your workout results and build the lean muscle mass that boosts strength. Thorne’s Amino Complex formula also enhances cellular energy production.* 

Amino acids are the building blocks of protein. They fuel muscle gain and other physiological functions, including enzyme production, hormone regulation, cognitive ability, neurotransmitter balance, metabolism, and energy production. As we age, we lose muscle mass, which can cause other health issues, so it is important to promote the growth of lean muscle mass.

Of the 20 amino acids that make up protein, nine are classified as essential amino acids (EAAs), those the body cannot produce itself. Therefore, they must be consumed through diet and supplementation to support the body’s internal production of energy.  

Thorne’s Amino Complex is a comprehensive blend of EAAs, which is high in branched-chain amino acids (BCAAs) – a group of amino acids that promote the growth of lean muscle mass and enhance muscle strength.* 


EAAs benefit the body in multiple ways

  • Support muscle repair and recovery*
  • Reduce muscle soreness*
  • Benefit muscle strength*
  • Support lean muscle mass*
  • Increase cellular energy production*
  • Promote healthy blood sugar already within the normal range*
  • Support cardiovascular health*
  • Strengthen connective tissue* 


Who can benefit from Thorne Amino Complex

  • Athletes, to support training and fitness
  • The elderly, who need to preserve muscle mass
  • A person recovering from muscle injury or overuse
  • Anyone needing readily bioavailable amino acids for protein building 


Features of Thorne Amino Complex

  • Available in two flavors - lemon and berry
  • Available in bulk powder or individual stick pack servings 
  • NSF Certified for Sport®
  • Lightly sweetened
  • Mixes easily in warm or cold liquid
  • Contains flavors and sweeteners derived from natural flavors


How to take Thorne Amino Complex

Amino Complex is best taken after a workout to facilitate the recovery process.* It’s an ideal formula for active individuals, individuals managing calories, or anyone who has difficulty consuming whole foods or protein powders, particularly after heavy exercise.

Because athletes need to know their supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations. 

Suggested Use:

Mix 1 stick pack with at least 8 ounces of water one to two times daily or as recommended by your health-care practitioner.

Warnings:

CALIFORNIA WARNING

Risk of reproductive harm from exposure to lead. See www.P65Warnings.ca.gov/food.

ALLERGY WARNING

This product is contraindicated in an individual with a history of hypersensitivity to any of its ingredients.

PREGNANCY WARNING

If pregnant or nursing, do not use this product.

INTERACTIONS

There are no known adverse interactions or contraindications at publication date.

NOTICE FOR NEW YORK RESIDENTS

New York law prohibits the sale of this product to individuals under the age of eighteen.

FAQs
Frequently asked question

Is Amino Complex worth buying compared to regular protein powders?

Yes, Amino Complex offers a targeted advantage over standard protein powders. It delivers free-form amino acids that absorb rapidly without requiring digestion, making them ideal before, during, or after workouts. Unlike whole protein sources, these amino acids are immediately available to support muscle building, energy production, and recovery. If you want precise, efficient amino acid delivery without extra calories from fats or carbs, Amino Complex is a strong choice.

Where can I buy Amino Complex Travel Packs and what is the return policy?

You can purchase Amino Complex Travel Packs directly on this page for guaranteed authenticity. We offer a satisfaction-based return policy—if you're not happy with your purchase, contact our customer support team within the applicable return window for assistance. Buying directly ensures you receive fresh, properly stored product along with any available promotions or subscription savings.

What are amino acids and why do they matter for fitness?

Amino acids are the building blocks of protein, essential for muscle growth, repair, and many body functions including hormone regulation, enzyme production, metabolism, and cognitive health. For active individuals, getting adequate amino acids supports lean muscle development and faster recovery. As we age, maintaining amino acid intake becomes even more critical since the body naturally loses muscle mass over time.

What does 'travel pack' mean and how convenient are they?

Travel packs are single-serving, pre-measured packets designed for on-the-go use. No measuring or scooping needed—just toss a pack in your gym bag, carry-on, or backpack. They're perfect for maintaining your supplement routine while traveling, at work, or anywhere away from home. Each lemon-flavored packet simply mixes into water for a refreshing, convenient amino acid boost wherever you are.

When is the best time to take Amino Complex?

Amino Complex can be taken before, during, or after exercise for maximum benefit. Pre-workout use helps prime muscles with available amino acids, while intra-workout sipping supports endurance and reduces muscle breakdown. Post-workout consumption aids recovery and muscle repair. It can also be used between meals to help maintain a positive muscle protein balance throughout the day.

Is the Lemon flavor naturally flavored and free from artificial additives?

Thorne is known for producing high-quality supplements with clean ingredient standards. The Lemon flavor is formulated to be refreshing and easy to drink without relying on artificial flavors or unnecessary fillers. Thorne products are rigorously tested for purity and potency, making them a trusted choice for athletes and health-conscious consumers who care about what goes into their bodies.

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