Description
What Are the Main Differences between the CellTiter-Glo® 2.0 Assay and the Original Version?
The CellTiter-Glo® 2.0 Assay delivers the same sensitivity, dynamic range, and luminescent signal as the original, with three meaningful operational improvements: a simplified single-reagent format, extended reagent stability and better suitability for multi-day high-throughput workflows.
Is Data Reproducibility Improved in the CellTiter-Glo® 2.0 Assay?
Data quality—sensitivity, linearity and signal stability—is equivalent between versions. Reproducibility improvements in the CellTiter-Glo® 2.0 Assay are primarily operational. By eliminating the substrate reconstitution step, the assay removes a source of plate-to-plate variability introduced when different users prepare reagent batches at different times. The stable, ready-to-use format also ensures that the reagent used on day 1 and day 5 of a screening campaign performs identically.
Are There Differences in Reagent Compatibility between Versions?
CellTiter-Glo® and CellTiter-Glo® 2.0 Assays should not be mixed. The two formulations contain different stabilizer systems, and mixing may produce unpredictable signal characteristics. If transitioning from the original to 2.0 within a validated assay, a side-by-side bridging experiment is recommended to confirm equivalence in your specific cell model and assay format before fully switching.
Does the CellTiter-Glo® 2.0 Assay Offer Faster Results than the Original?
Total assay time from reagent addition to luminescence measurement is equivalent (approximately 10–12 minutes). The speed improvement with the CellTiter-Glo® 2.0 Assay is in preparation time: eliminating reconstitution reduces setup by approximately 15–30 minutes per session, which accumulates meaningfully over multi-day screening campaigns.
