diff --git a/code/modules/hydroponics/seed.dm b/code/modules/hydroponics/seed.dm
index 874d3dcb10..0eb62a156c 100644
--- a/code/modules/hydroponics/seed.dm
+++ b/code/modules/hydroponics/seed.dm
@@ -452,11 +452,15 @@
 	var/additional_chems = rand(0,5)
 
 	if(additional_chems)
-
+		//VOREStation Edit Start TFF 24/1/20 - More chems too the blacklist for prefs reasoning.
 		var/list/banned_chems = list(
 			"adminordrazine",
-			"nutriment"
+			"nutriment",
+			"macrocillin",
+			"microcillin",
+			"normalcillin"
 			)
+		//VOREStation Edit End
 
 		for(var/x=1;x<=additional_chems;x++)