Thorne

Amino Complex Lemon NSF, 231 g

Size: 231 Grams

4.2 across 6 sources

May be a fit for

  • Athletes seeking amino acid support for muscle protein synthesis post-training
  • Adults over 40 maintaining lean muscle mass with essential amino acids
  • Practitioner protocols requiring NSF-certified amino complex for competitive athletes
$52.99

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PowderFormat
231 gPack size
The essentials

A closer look.

Thorne Amino Complex Lemon is a powder-form essential amino acid (EAA) blend designed to support muscle protein synthesis, recovery, and lean mass maintenance, formulated for active individuals, athletes, and those with elevated protein needs. The lemon-flavored, NSF Certified for Sport® formula signals third-party testing for banned substances, relevant for competitive athletes.

Why It's Worth Considering: Thorne's NSF Certified for Sport® certification adds an independent verification layer beyond standard GMP compliance, and the powder delivery allows for flexible, adjustable dosing mixed into water or preferred beverages.

The Apotheca perspective

50+ signals. A clearer standard.

Our curation and trust scoring bring together manufacturing, testing, research, practitioner insight and reviews from across the web.

90OUT OF 100
Manufacturing8383
Lab verification7373
Transparency6565

Our score is an editorial assessment, not a product certification or a guarantee of results.

Thorne - Amino Complex Lemon NSF, 231 gThorne · 231 g
Make it part of your day

Make it part of your routine.

Mix 1 scoop with at least 8 ounces of water one to two times daily or as recommended by your health professional.

Read the complete label
Inside the formula

Product details

Supplement facts & complete label

Serving Size:
One Scoop (7.7 g)

Amount Per Serving:

Calories ... 25
Total Carbohydrate ... 1 g
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

Other Ingredients:
Citric Acid, Flavors, Fruit and Vegetable Juice (Color), Stevia Extract

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.

WARNING: 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.

Label directions

Mix 1 scoop with at least 8 ounces of water one to two times daily or as recommended by your health professional.

Source: authorized supplier catalog · September 04, 2026. Formulas and labels can change. Check the packaging you receive.

Who it may suit

May be a fit for

  • Athletes seeking amino acid support for muscle protein synthesis post-training
  • Adults over 40 maintaining lean muscle mass with essential amino acids
  • Practitioner protocols requiring NSF-certified amino complex for competitive athletes
  • Those supporting recovery between high-frequency strength or endurance sessions

Considerations

  • Known allergy to any ingredient (check label)
  • Currently pregnant or breastfeeding (consult healthcare provider)
  • Taking prescription medications (check for interactions)
  • Under 18 years of age (unless recommended by pediatrician)
From across the web

Real reviews. A wider perspective.

Customer reviews, social conversations and expert insights, with every source in view.

4.2/5Aggregate source rating
Marketplaces & brand websites
Amazon, iHerb and direct brand reviews
Social & community
Reddit, X, Instagram and TikTok
Video & creators
YouTube and creator perspectives

Coverage varies by product and brand.

2757 product and brand ratings and mentions across 6 sources.

Explore the source sentiment summary

Brand sentiment heavily negative due to PE acquisition quality fears, counterfeit concerns, and COA transparency issues; promotional posts provide minority positive signal.

This summary includes broader brand discussion. Individual experiences are not evidence of product effectiveness.

Good to know

A few useful answers.

Research & further reading

More category questions

How should I store this supplement?

Store in a cool, dry place away from direct sunlight. Most supplements are stable at room temperature (59-77°F). Keep the bottle sealed between uses. Check the label for any specific storage requirements — some probiotics and oils require refrigeration.

Can I take this with other supplements?

Most supplements can be taken together safely. However, some minerals compete for absorption (zinc and iron, calcium and magnesium) and should be taken at different times of day. If you're taking prescription medications, consult your healthcare provider about potential interactions.

How long should I take this supplement?

Most supplements benefit from consistent daily use over 2-3 months to achieve full effect. Some (like vitamins and minerals) can be taken indefinitely as part of a daily routine. Others (like specific herbs) may benefit from cycling. Follow the product's recommended protocol or consult a practitioner.

When is the best time to take this?

Fat-soluble supplements (vitamins A, D, E, K, omega-3, CoQ10) should be taken with a meal containing fat. Water-soluble supplements (B vitamins, vitamin C) can be taken anytime. Minerals are generally best absorbed with food. Probiotics should be taken with or just before a meal. Check the product label for specific timing recommendations.

How do I know if this supplement is working?

Track your specific health goals — energy levels, sleep quality, joint comfort, digestion, mood, etc. Most supplements take 2-8 weeks for noticeable effects. For objective measurement, baseline lab tests before starting (and repeat at 3 months) provide definitive evidence. The Gabriel Score incorporates clinical evidence for expected outcomes.

Supplement information is provided for education and is not a substitute for personalized medical advice. Supplements are not intended to diagnose, treat, cure or prevent disease. Read the current product label before use.

Thorne - Amino Complex Lemon NSF, 231 g Thorne

Apotheca quality score

90/100

The overall score combines several sources of information. The individual dimensions below show where those signals are stronger or more limited; they are not a simple average of the overall score.

Manufacturing8383
Lab verification7373
Review consensus90.090.0
Practitioner signals69.069.0
Community signals6464
Transparency6565
See available brand signals
✓
Good manufacturing practices verifiedStandard
✓
Quality ingredients with verified sourcingGood
✓
Clean FDA regulatory recordNo issues
✓
Positive consumer reviews and community feedbackGood
✓
Authorized distribution channel verifiedDirect

Our score is an editorial assessment, not a product certification or a guarantee of results.

How our scoring works ↗