L-Glutamine is an amino acid essential for cell culture. L-glutamine is involved in the formation of purine and pyrimidine nucleotides, amino sugars, glutathione, L-glutamic acid and other amino acids, and is involved in protein synthesis and glucose production. Unlike most other amino acids, L-glutamine is unstable in solution. The rate of degradation is a function of time, temperature and pH. Gibco™ L-Glutamine is a ready-to-use 200 mM stock solution for use as a cell culture supplement. The optimal concentration depends on the cell type and medium used to culture the cells, but is usually in the range of 2–6 mM.

We also offer Gibco™ GlutaMAX™ supplements as a stable alternative to L-Glutamine.

Dual Production Site cGMP Manufacturing and Quality System
Gibco™ L-Glutamine is manufactured in a cGMP compliant facility in Paisley, Scotland, UK. The facility is an FDA-registered medical device manufacturer and is certified to the ISO 13485 standard. To ensure supply chain continuity, we also offer an equivalent Gibco™ L-Glutamine product (25030-081) manufactured at our Grand Island facility. Our factory is also a medical device manufacturer registered with the FDA and complies with the ISO 13485 standard.