Cell-Ess is now available!

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What is Cell-Ess®?

Cell-Ess is a serum-free, animal-free synthetic replacement for Fetal Bovine Serum and other sera.

What is Fetal Bovine Serum?

Fetal Bovine Serum, FBS, is a common component of animal cell culture media. It is produced from blood collected from cattle bred to supply meat destined for human consumption. It is harvested from bovine fetuses taken from pregnant cows during slaughter.

How is Cell-Ess better than serum?

Cell-Ess is chemically defined, so it works the same each time, giving you greater control and confidence in your media’s performance. Cell-Ess contains no animal products or unknown contaminants that could impact your work or require later purification steps.

Does Cell-Ess contain any protein?

Cell-Ess contains very low amounts (<50 µg/L) of essential recombinant proteins. These proteins are non-animal and/or synthetic in origin. FBS contains between 32-70g/L of dozens of undefined bovine proteins, many of which can interfere with cell growth or performance.

Does Cell-Ess contain any plant hydrolysates or any additives not in FBS?

No. Cell-Ess has no plant or animal-derived additives of any kind.

Does Cell-Ess cost more than Fetal Bovine Serum?

Cell-Ess is priced about the same as high-quality FBS and its total cost can often be less. If you now do extra steps with FBS like multi-lot testing, heat-inactivation, virus-testing, centrifugation, filtering, and having to buy and store large volumes of one lot of serum, Cell-Ess could cost you less.

How do I use Cell-Ess in place of FBS?

Cell-Ess was designed to directly replace FBS, volume for volume, in your current cell culture medium. So if you are now using 10% FBS in DMEM, use 10% Cell-Ess in DMEM.

Do my cells need to be adapted away from FBS to work with Cell-Ess?

For cell line applications: yes, adapting your cells to Cell-Ess is best for optimum performance. For work with primary cells: Cell-Ess can be cultured directly in medium with Cell-Ess.

Is Cell-Ess a new product?

Cell-Ess is very new and was introduced to the market in 2013. Cell-Ess has been in development for several years.

Where and how is Cell-Ess produced?

Cell-Ess is produced in the USA under cGMP and ISO compliance.

Is Cell-Ess stored frozen like FBS?

No, storage of Cell-Ess is at 4°C making it easier to store and quicker to use.

I’ve noticed that other serum-free products seem to lose their potency if they aren’t used quickly. Is this true with Cell-Ess?

No, Cell-Ess was specially designed to allow it have full potency for a full year after its production date.

Why are the growth factors packaged separately?

Essential Pharmaceuticals has devised a patent-pending method of increasing shelf life via this packaging in addition to giving the user much more flexibility in their formulations.

How can I get your latest brochure?

Download our latest brochure from this page.

FAQ  Factors


Ask about out sample program.