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Glutamine is a conditionally-essential amino acid (CEAA) and an important building-block of proteins. Prolonged bouts of intense exercise can deplete your body’s nutritional reserves and overcome its ability to fully recover. Made entirely with pure l-glutamine, R1 Glutamine is a simple way to help keep your levels elevated.


100% L-Glutamine

R1 Glutamine is offered in one stress-free flavor option: unflavored. It readily drops into protein shakes and workout supplements to boost the benefits.^


  • 5g micronized l-glutamine† 
  • Formula Transparency
  • ZERO Fillers 
  • ZERO Sugars 
  • ZERO Stimulants 
  • ZERO Gums

Glutamine 75 Servings

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