Micronized L-Glutamine by Natural Factors $17.99 90 Vegetarian Capsules - $17.99 180 Vegetarian Capsules - $31.99 Size 90 Vegetarian Capsules 180 Vegetarian Capsules 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Micronized L-Glutamine supports muscle tissue and mass after physical activity and immune system function.* Natural Factors amino acids are the highest quality pharmaceutical grade products available.