We are a technique-oriented biotechnology company, producing high quality cell culture media and reagents. Our mission is to help customers conduct successful scientific experiments and produce repeatable data and results. We believe in sweating the details, and treat our work with the utmost patience and care. Customer satisfaction is at the heart of our business.

In addition to media and reagents, we produce CF1 and C57BL/6 mouse embryonic fibroblasts (MEFs), i.e. feeder cells, at passages 2 and 3. We also provide mycoplasma testing as well as customized media services. Please contact us at for more details.

We work closely with our customers at their schedule. Upon receiving purchase orders, we prepare fresh media in the following week. In many cases, our customers receive their media the day of (or one day before) their planned experiments. Please contact us ( if you have an urgent order.

About Us

Located in the San Francisco Bay Area, CytoSpring supports institutions all over the world. Our scientists have decades of advanced research knowledge, benchwork skill, and tissue culture experience. We are committed to high quality industrial products and the advance of science both directly and indirectly.


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