[zenburnmyface]

It’s call FBS, and it can be grown in a lab, too (if it’s even required…). See companies like Future Fields.

[epgui]

In practice, artificial FBS or FBS-free medium can be very tricky to use successfully. It's definitely not a solved problem yet.

[species9606]

It is a solved problem, UPSIDE (and I believe one other company) now have animal-component-free medium.