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Head to head · Amino Acids (BCAA & EAA)

Thorne Amino Complex vs Transparent Labs BCAA Glutamine

Thorne scores higher overall (6.6 vs 6.1 out of 10), mainly on efficacy, quality & purity and transparency. Transparent Labs still leads on value.

Updated September 2026 from our full reviews · How we score

Higher score

A well-balanced, NSF Certified for Sport EAA formula with 1.25 g leucine per scoop, but only about 4 g of amino acids for roughly $1.73 a serving.

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Clean-label BCAA drink with 8 g fermented BCAAs, 5 g glutamine and no artificial sweeteners, but about $1.33 a serving and 1,500 mg of vitamin C per scoop.

Check price on AmazonBuy from the brand$39.99

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Read the full review

We may earn a commission when you buy through these links — it never affects our scores. How we make money

The short answer

Choose Thorne if…

  • Tested athletes who want an NSF-certified EAA
  • People who can't tolerate protein powders
  • Those who want a balanced EAA profile rather than a BCAA drink
  • You care most about efficacy, quality & purity, transparency

Choose Transparent Labs if…

  • Buyers who want BCAAs without sucralose or artificial dyes
  • Vegans who prefer fermented, plant-derived BCAAs
  • Athletes who want an Informed Choice certified amino drink
  • You care most about value
  • You want the lower cost per serving ($1.33)

Side by side

Amino ComplexBCAA Glutamine
Our score6.6 / 106.1 / 10
Efficacy (30%)6.24.9
Quality & Purity (25%)8.88.2
Value (20%)3.84.5
Experience (15%)6.26.2
Transparency (10%)8.57.8
FormPowderPowder
Serving1 scoop30 servings per container1 scoop30 servings per container
Price per serving$1.73$1.33
Testing & certifications
NSF Certified for Sport
Informed Choice
DietaryVegan, Gluten-free, Dairy-free, Soy-freeVegan, Gluten-free, Non-GMO
Key ingredients
  • L-Leucine1.25 g
  • Other essential amino acids (isoleucine, valine, lysine, threonine, histidine, phenylalanine, methionine, tryptophan)2,570 mg combined
  • L-Cystine and L-Tyrosine150 mg / 30 mg
  • Fermented BCAAs (2:1:1 leucine, isoleucine, valine)8,000 mg
  • L-Glutamine5,000 mg
  • Vitamin C1,500 mg
  • Coconut water powder1,000 mg
Flavors2 (Berry, Lemon)7 (Strawberry Lemonade, Blue Raspberry, Tropical Punch…)
Creator video reviews23

Pros and cons

Amino Complex

  • Complete, balanced essential amino acid profile with 1.25 g leucine
  • Listed as NSF Certified for Sport
  • Fully disclosed amounts for every amino acid
  • Labeled vegan, gluten-free, dairy-free and soy-free
  • Only about 4 g of amino acids per scoop
  • About $1.73 per serving, poor value versus protein powder
  • Taste and stevia divide buyers; some report nausea
  • Thorne's product page carries a California Prop 65 lead warning

BCAA Glutamine

  • 8 g of fermented, vegan BCAAs in a fully disclosed formula
  • No sucralose, acesulfame potassium or artificial dyes
  • Brand reports third-party testing of every batch and Informed Choice certification
  • Buyers rate its quality and digestibility highly
  • BCAAs add little for people who already eat enough protein
  • 1,500 mg vitamin C per scoop; three scoops would exceed the adult upper limit
  • Taste is the most frequent complaint in buyer reviews
  • About $1.33 per serving

Our verdicts

Amino Complex

Amino Complex gets the science and the certification right: a balanced, leucine-forward essential amino acid profile with NSF Certified for Sport status. It is let down by a small dose, a high price and divisive taste. It makes most sense for tested athletes or people who can't use protein powder; everyone else will get more from a quality protein shake.

Full review

BCAA Glutamine

This is a thoughtfully formulated BCAA drink with a clean label and certification, but it is expensive, divisive on taste and built on an ingredient class with weak evidence for people who eat enough protein. The megadose of vitamin C is unnecessary and adds up quickly if you follow the label's multi-scoop directions. An EAA product or a protein shake is the better buy.

Full review

What creators say

Questions people ask

Is Thorne better than Transparent Labs?
In our scoring, Thorne Amino Complex rates higher overall (6.6 vs 6.1 out of 10). Thorne leads on efficacy, quality & purity and transparency; Transparent Labs leads on value. Scores weigh efficacy, quality, value, experience and transparency.
Which is cheaper per serving, Thorne or Transparent Labs?
Transparent Labs costs about $1.33 per serving versus $1.73 for Thorne, based on the list prices shown in our reviews. Prices change often, so check the current price before buying.
Are Thorne and Transparent Labs third-party tested?
Thorne carries NSF Certified for Sport; Transparent Labs carries Informed Choice. Sport-level certifications screen for banned substances, which matters for drug-tested athletes.
Who should choose Thorne over Transparent Labs?
Our reviews suggest Thorne is best for tested athletes who want an NSF-certified EAA, people who can't tolerate protein powders and those who want a balanced EAA profile rather than a BCAA drink, while Transparent Labs is best for buyers who want BCAAs without sucralose or artificial dyes, vegans who prefer fermented, plant-derived BCAAs and athletes who want an Informed Choice certified amino drink.

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