Opti-MEM® Reduced-Serum Medium is an improved Minimal Essential Medium (MEM) that allows for a reduction of Fetal Bovine Serum supplementation by at least 50% with no change to growth rate or morphology. Opti-MEM® is also recommended for use with cationic lipid transfection reagents, such as Lipofectamine™ reagent. Opti-MEM® can be used with a variety of suspension and adherent mammalian cells, including Sp2, AE-1, CHO, BHK-21, HEK, and primary fibroblasts. We offer a variety of Gibco® Opti-MEM® modifications for a range of cell culture applications.

This Opti-MEM® is modified as follows:

With

• L-glutamine

• Phenol Red

The complete formulation is confidential. For more information, please contact Technical Services.

Gibco® Opti-MEM® is a unique media that contains insulin, transferrin, hypoxanthine, thymidine, and trace elements. These additional components allow for a reduction in serum supplementation by at least 50%.

cGMP Manufacturing and Quality System
For supply chain continuity, we manufacture Gibco® Opti-MEM® at two separate facilities located in Grand Island, NY and Scotland, UK. Both sites are compliant with cGMP manufacturing requirements, are certified to ISO 13485, and are registered with the FDA as medical device manufacturers.

Gibco® Opti-MEM® uses a sodium bicarbonate buffer system (2.4 g/L) and therefore requires a 5-10% CO₂ environment to maintain physiological pH.

Powder forms of Gibco® cell culture medium require sodium bicarbonate supplementation, pH adjustment and filtration at the time of preparation (see protocol for details).

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