we used the trypsin from the invitrogen.# x2 I3 l6 M2 ~: t
But they provide the red and white trypsin with the same concentration. # u2 \* O5 o, K( O8 E- y: unormally we use the write one for the ES and NSC culture.4 S m6 U' C [1 q
some people know the difference between these two things?