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Easier and faster way to quantify cell viability on your 2D or 3D cell culture

Get 25% off our  more sensitive colorimetric cell viability assay :
Cell Counting Kit 8 (CCK-8)

Based on the use of a highly water-soluble tetrazolium salt (WST-8), the Cell Counting Kit-8 (CCK-8) from Dojindo Laboratories, allows better and easier colorimetric assays for the determination of cell viability, cell proliferation and cytotoxicity assay in comparison to the classical MTT cell viability assay

The main benefits

  • Viability analysis on classical or organoid cell culture

  • Re-use the cells after colorimetric measurement
  • Less cellular toxicity
  • Highest sensitivity
  • Easiest to use
    • One ready-to-use bottle
    • No need to dissolve salt
    • No need to lyse cells

Thanks to its water-soluble salt (WST-8), the CCK-8 colorimetric assay is currently the most well accepted assay in academia, in comparison with other Tetrazolium salt assays.


Offer valid up to December 31st, 2018 - mention promo code "CK-04 End of Year"on your order to benefit from this discount. For more information or to order, please contact your local tebu-bio office.
Non-cumulative with any other discounts, special offers or price agreements.

See how CCK-8 was used with Spheroids in our lab

CCK-8 allows determination of cell toxicity in a much easier and quicker way than microscopy scoring.
It has been used at our labs based in France - see our scientist's opinion below:

"When your model of choice is a 3D culture, the colorimetric CCK-8 represents a significant gain of time relative to microscopy scoring methods for accessing viability, proliferation or cytotoxicity.

Incubation of HCT-116 and HepG2 spheroids with WST-8 (CCK-8 cell counting kit) for as little as two hours enables reliable measurement of absorbance and the determination of IC50 values and cytotoxicity caused by paclitaxel and staurosporine.

The CCK-8 kit is an invaluable tool for anyone interested in spheroid-based studies."

Download the PDF with more information & results here

Watch the videos...

...and learn more about WST-8 and our Cell Counting Kit-8 (CCK8) on our scientific blog