Looks like serum free cell culture medium exist: https://www.labome.com/method/Cell-Culture-Media-A-Review.html https://www.labome.com/method/Cell-Culture-Media

Looks like serum free cell culture medium exist: https://www.labome.com/method/Cell-Culture-Media-A-Review.html https://www.labome.com/method/Cell-Culture-Media-A-Review.ht...