ThorneAmino Complex

Overview

Thorne is best known for practitioner-grade supplements, and Amino Complex is its answer to sugary amino drinks. Each 7.6 g scoop provides 11 amino acids, including all nine essential amino acids: 1.25 g leucine, 650 mg lysine, 625 mg each of isoleucine and valine, 350 mg threonine, and smaller amounts of the rest, for about 3.8 g of EAAs in total. It has zero sugar, is sweetened with stevia (Reb A), and is colored with fruit and vegetable juice. It's NSF Certified for Sport and costs $52 for 30 scoops in Berry or Lemon.

What reviewers say

Reviewers consistently point to the complete amino acid profile and third-party certification as the reasons to pay up. Dr. Bell Health frames it as a top-tier option for pre- and post-workout recovery, product-review channels such as Smart Gear Vault rank it among the best amino supplements for lean muscle, and fight-sports coaches at Momentum WOD focus on its NSF certification for athletes subject to USADA drug testing. On paper, the main drawback is dose: about 3.8 g of EAAs per scoop is modest compared with the amounts often used in research, and Thorne suggests one to two scoops a day, which doubles the cost. The label also carries a California Prop 65 warning for lead.

Who it's for

Drug-tested athletes, lifters who want a clean, stevia-sweetened amino drink, and plant-based eaters looking to top up essential amino acids between meals.

Bottom line

If you're going to buy an amino supplement, a complete EAA formula is the type research supports best, and Thorne's is the most rigorously certified in this lineup. Budget for two scoops if you want to get closer to research-style doses.