Thank you!
Your email is being processed.
You purchased this item on
View this order
Muscle recovery, lean muscle support, workout energy support, connective tissue building blocks
Active adults or athletes who want convenient essential amino acids, and older adults aiming to support daily muscle needs when protein intake is light.
Mix 1 scoop with at least 8 ounces of water one to two times daily; taking after workouts is commonly used for recovery. If you experience stomach upset, take with a small snack or shake.
Gluten Free. Contains: none stated. California Proposition 65 warning: exposure to lead.
Leucine activates the mTOR pathway in muscle cells, which may stimulate muscle protein synthesis after exercise.
Caution: Avoid taking on an empty stomach if it upsets your stomach; amino acids can cause mild gastrointestinal discomfort in some people.
Isoleucine is used by muscles for energy and may support glucose uptake into muscle during and after activity.
Caution: May cause mild digestive upset in sensitive individuals; taking with a small snack or shake can help.
Valine serves as a substrate for muscle energy and helps balance nitrogen in muscle tissue during exercise.
Caution: High doses of BCAAs can compete with other amino acids for transport; keep to labeled amounts.
Lysine is an essential building block for proteins and collagen and supports absorption of other amino acids during muscle repair.
Caution: May cause stomach discomfort in some users; take with water and avoid exceeding suggested use.
Threonine contributes to protein structure and collagen formation and supports balanced nitrogen metabolism.
Caution: Those following a protein-restricted diet should confirm overall amino acid intake fits their plan.
This blend provides all essential amino acids with an emphasis on the BCAAs leucine, isoleucine, and valine to drive muscle protein synthesis and provide workout fuel. Supporting EAAs like lysine and threonine supply building blocks for structural proteins and help balance overall amino acid availability for recovery.
Label Warning: Use only if bottle is sealed. If pregnant or nursing, do not use this product. This product may expose you to chemicals, including lead, known to the State of California to be associated with birth defects or other reproductive harm.
Who should be cautious: Contains L-tryptophan, which may interact with SSRIs, SNRIs, or MAOIs; discuss with a healthcare provider if using these medications before use.
Storage: Store tightly sealed in a cool, dry place.
Many reviewers say it helps post-exercise recovery and fits well into fitness routines.
Berry flavor is often described as tasty, and the powder dissolves smoothly in beverages.
Some mention an overly sweet or slightly sour taste, and a few report nausea or irritation when mixing.
This product is guaranteed authentic and backed by our easy returns & refunds policy. Details
Omega-3s may support joint health and reduce inflammation, enhancing the benefits of amino acids for active individuals.
AI generated. Not medical advice.
Sorry, there was a problem adding this item to cart. Please refresh the page and try again.
Optimize your workout results and build the lean muscle mass that boosts strength. The 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 in total, 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 essential amino acids, which is high in branched-chain amino acids (BCAAs) – a group of amino acids validated through clinical trials to promote the growth of lean muscle mass and enhance muscle strength.
EAAs benefit the body in multiple ways:
Amino Complex’s formula supports sports, fitness, and training-related activities.. Additionally, it promotes the growth of muscle mass in individuals who need to preserve muscle mass, including the elderly.
Amino Complex comes in two flavors – lemon and berry – and is lightly sweetened. It mixes easily with warm or cold liquids, and contains flavors and sweeteners derived from natural sources.
It 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 more than 200 substances banned by many major athletic organizations.
Mix 1 scoop with at least 8 ounces of water one to two times daily or as recommended by your health-care practitioner.
Flavor, citric acid, stevia extract (leaf), fruit and vegetable juice (color).
Tamper Evident: Use only if bottle is sealed. Store tightly sealed in a cool, dry place.
If pregnant or nursing, do not use this product.
Consuming this product can expose you to chemicals, including lead, which are known to the State of California to cause birth defects or other reproductive harm.
While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
| Supplement facts | ||
| Serving Size: One Scoop (7.6 g) | ||
| Servings Per Container: 30 | ||
| Each Scoop (7.6 g) Contains: | %Daily Value | |
| Calories | 25 | |
| Total Carbohydrate | 1 g | <1%* |
| L-Leucine | 1.25 g | ** |
| L-Lysine (as L-Lysine Chloride) | 650 mg | ** |
| L-Isoleucine | 625 mg | ** |
| L-Valine | 625 mg | ** |
| L-Threonine | 350 mg | ** |
| L-Histidine (as L-Histidine Chloride Monohydrate) | 150 mg | ** |
| L-Cystine | 150 mg | ** |
| L-Phenylalanine | 100 mg | ** |
| L-Methionine | 50 mg | ** |
| L-Tyrosine | 30 mg | ** |
| L-Tryptophan | 20 mg | ** |
| *Percent Daily Values are based on a 2,000 calorie diet. **Daily Value (DV) not established. | ||
