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#2 in Amino Acids Third-Party Tested

Thorne Amino Complex (Lemon Flavor)

by Thorne

"All 9 essential amino acids in clinical ratios — the practitioner-grade EAA for muscle preservation and recovery with NSF Certified for Sport"

Amazon Rating
4.3/5
Reviews
2,400+
Price Range
$38-46
Servings
30 servings
NSF Certified for SportGMP Certified
Our Editorial Rating
8.0
Very Good
FormPowder
CategoryAmino Acids
SubcategoryEAA (Essential Amino Acids, Clinical Grade)
View on Amazon

Overview

Thorne Amino Complex provides all 9 essential amino acids (EAAs) in clinically studied ratios optimized for muscle protein synthesis. The formula includes 3.6g leucine per serving — above the 2.5g leucine threshold required to maximally stimulate mTOR and muscle protein synthesis. Unlike BCAAs (which only provide 3 of 9 EAAs), a complete EAA formula provides all the building blocks needed for muscle protein synthesis. Thorne's formula is NSF Certified for Sport, making it suitable for professional and Olympic athletes. The lemon flavor is designed for intra-workout sipping.

Key Ingredients

4 ingredients linked to detailed encyclopedia profiles

Pros & Cons

What We Like

  • All 9 EAAs
  • 3.6g leucine
  • NSF Certified for Sport
  • Clinical ratios
  • Thorne quality

What Could Be Better

  • Premium price ($38+)
  • 30 servings only
  • 2,400+ reviews (niche)
  • Tart lemon flavor

Who Is This For?

Best For

  • Tested athletes
  • Muscle preservation during cutting
  • Fasted training
  • Those wanting complete EAAs over BCAAs

Not Ideal For

  • Budget seekers
  • Those with adequate protein intake
  • Those wanting BCAAs only
  • Those wanting unflavored

Our Verdict

8.0/10 — Very Good

Thorne Amino Complex is the clinical-grade EAA — all 9 essential amino acids with 3.6g leucine and NSF Certified for Sport. The premium for tested athletes and those wanting complete amino acid coverage over BCAAs.

Alternatives to Consider

No direct alternatives listed for this product yet.