Alloderm

Hi everyone, This is my first post here. I am 6 days out from a lap. RNY. Everything is going great, I have lost 9 pounds since 5/16. I did just find out that my doctor used alloderm, when we talked I made sure to say that I did not want any foreign bodies used. The lit. from the group and the classes talk about using fascia from the leg. Does anyone know anything about this alloderm. Thanks, Tiana