Biochem works for most classes.
My trooper was my first toon with biochem and having easy access to medpacs and stims made playing (PvE) go easier and faster. I also send implants to my friends and my alts. Makes me wish I had not gone with all the other crafts (arrms, armor, cyber, artifice) first.
Great, I'm a long ways away but is it the same for L50?