Cell Counting Kit-8

Cell Counting Kit-8 (CCK-8) is a scientific tool used to measure how many living cells are present in a sample, often in research or medical labs. It contains a special substance that living cells can convert into a colored compound. When added to cells, the more active and numerous the cells are, the more color develops. By measuring the color intensity with a simple instrument called a spectrophotometer, researchers can determine cell growth, viability, or the effects of treatments in a quick and accurate way.