L-Isoleucine®

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Serving Size: 1000 mg · 1–2 per day

Not Present

• 

  L-Isoleucine Powder

  BulkSupplements.com5.0(10)

  $24.97
• 

  L-Isoleucine BCAA Powder

  BulkSupplements.com5.0(9)

  $153.97
• 

  BulkSupplements Hydrolyzed Whey Protein Isolate Powder

  BulkSupplements.com4.6(109)

  $22.97
• 

  BulkSupplements L-Leucine Capsules

  BulkSupplements.com4.6(139)

  $19.97
• 

  L-Leucine Supplement Boost Athletic Performance Powder

  BulkSupplements.com4.6(146)

  $42.97
• 

  BulkSupplements BCAA 3:1:2 Powder

  BulkSupplements.com4.8(1100)

  $38.97
• 

  BulkSupplements.com BCAA 2:1:1

  BulkSupplements.com4.7(4500)

  $182.97
• 

  BulkSupplements HMB Capsules

  BulkSupplements.com4.7(978)

  $22.97

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

• Supplement Superstores

  5.0 (996)

  Vitamin & supplements store

  6687 Center Grove Rd, Glen Carbon, IL 62034

  Directions(618) 307-5993

• 1Stop Supplements

  4.9 (83)

  Vitamin & supplements store

  2711 N Center St, Maryville, IL 62062

  Directions(618) 343-1040

• Supplement Superstore

  5.0 (918)

  Vitamin & supplements store

  3280 Green Mt Crossing Dr, Shiloh, IL 62269

  Directions(618) 624-9995

• Innovative Sports Nutrition

  4.9 (28)

  Nutritionist

  211 Harvard Dr, Edwardsville, IL 62025

  Directions(618) 655-0775

• Supplement Superstore

  5.0 (1306)

  Vitamin & supplements store

  7449 S Lindbergh Blvd, St. Louis, MO 63125

  Directions(314) 416-8800

• Supplement Superstore

  5.0 (1389)

  Vitamin & supplements store

  8420 Eager Rd, St. Louis, MO 63144

  Directions(314) 961-3935

• GNC

  4.3 (36)

  Vitamin & supplements store

  11274 W Florissant Ave #1274, Florissant, MO 63033

  Directions(314) 838-3634

• Supplement Superstore

  5.0 (660)

  Vitamin & supplements store

  8184 N Lindbergh Blvd, Florissant, MO 63031

  Directions(314) 839-7782

• Adding free leucine to a balanced essential amino acid mixture suppresses intracellular transamination of isoleucine and valine in healthy older adults

  SB Knezek, MPKJ Engelen, KS Coyle, CN Perez… - Clinical Nutrition, 2026 - Elsevier

  Background Adding leucine (LEU) to protein meals enhances protein anabolism, but excess LEU reduces valine (VAL) and isoleucine (ILE) plasma concentrations. We examined in …

  2026

• Modified from a paper to be submitted to Crop Science

  I Mertz, N Christians, A Thoms - Evaluation of creeping …, 2019 - search.proquest.com

  … Nitrogen content by weight was as follows: L-leucine and L-isoleucine 10.7%, and L-valine 12% N. The commercially available AA complex GreenNCrease is a product of Ajinomoto …

  2019

• The Effects of Arginine, Guanidinoacetic Acid and Citrulline Supplementation to Reduced Protein Diets for Aged Laying Hens.

  A Nawab, TH Dao, S Sukirno, N Akter… - Animals: an Open …, 2026 - europepmc.org

  This study evaluated the effects of arginine (Arg), guanidinoacetic acid (GAA), and citrulline (Cit) supplementation in reduced protein (RP) diets on the production performance, serum …

  20261 citations

• Concentration and Production of Cryoprotective Additives from Agricultural Waste Streams and Abundant Protein Sources

  ML Fomich - 2024

  2024

• Reading BCAA and Amino Acid Labels

  What the leucine, isoleucine, and valine ratios on a BCAA label tell you, and how amino acid amounts are listed.

  VitaSuppTrack Editorial· Jun 24, 2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2024-05-23. DSLD Label ID: 312176. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.