Leibovitz's L-15 Medium

We do provide osmolality information on the certificate of analysis. All lots of Leibovitz's L-15 Medium will meet the osmolality specification of 300-340 mOsm/kg.

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We offer the following Leibovitz media:

- Leibovitz's L-15 Medium, powder: Cat. Nos. 41300039 (10x 1L) and 41300070 (1x 10L)
- Leibovitz's L-15 Medium, no phenol red: Cat. No 21083027 (1x 500 mL)
- Leibovitz's L-15 Medium: Cat. Nos.11415064 (1x 500 mL) and 11415114 (10x 500 mL) (for sale in N. America, Latin America, and Asia-Pacific regions; Cat. No. 11415049 (for sale in Europe, Africa, and the Middle East
- Leibovitz's L-15 Medium with GlutaMAX Supplement: Cat. No. 31415029 (1x 500 mL)

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Generally speaking, media can be used for up to three weeks after supplementation with serum. There are no formal studies to support this, but it is the rule of thumb used by our scientists.

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We routinely ship media that require long-term storage in the refrigerator at room temperature. We have done studies on representative media formulations to show that media can be at room temperature for up to a week without a problem.

Find additional tips, troubleshooting help, and resources within our Mammalian Cell Culture Basics Support Center.

Very often mycoplasma contamination cannot be removed from the culture so it should be discarded. You may have a unique culture that you prefer not to discard and would like to try to clean it. Ciprofloxacin and Plasmocin have reportedly been used for this application. If interested in a protocol or directions for use, check with the antibiotic supplier or published literature. Note that mycoplasma are very difficult to remove from culture and spread easily so the treated cultures should be quarantined until clear of mycoplasma, and your laboratory should be thoroughly cleaned.

Find additional tips, troubleshooting help, and resources within our Cell Culture Support Center.