L-glutamine is supplied in both liquid and powdered forms to be used as an amino acid supplement for cell culture media. 

Powdered glutamine is supplied as a USP grade chemical and liquid formulations of glutamine are supplied at 200 mM (100X) at a final concentration of 29.2 mg/ml in 0.85% NaCl.

Improve cell viability and growth with GlutaMAX Media and Supplements

While results may vary depending on the cell line, using CTS GlutaMAX-I Supplement in place of L-glutamine in cell culture can improve cell viability and growth, potentially increasing productivity levels. Increase media stability, minimize toxic ammonia build-up, and maximize cell performance. Read more - Stability of GlutaMAX-I vs. L-Glutamine.

Glutamine Graph   Fig. 1 - Viability of AE-1 mouse myeloma cells was improved by the addition of our GlutaMAX Media Supplement  

Learn more about GlutaMAX media and GlutaMAX-I Supplements