Endothelial Cell Growth Supplement (ECGS) is a broadly used supplement to culture a variety of cells, particularly endothelial cells.

ECGS contains various growth factors (e.g., acidic FGF or ECCF-a).

Tested for ability to promote proliferation of Fetal Bovine Heart Endothelial Cells (FBHEC) in medium containing 10% newborn calf serum. Filtered (0.2 µm membrane) and tested and found negative for the presence of bacteria, fungi, and mycoplasma.