diff --git a/code/modules/mob/living/carbon/human/species/grey.dm b/code/modules/mob/living/carbon/human/species/grey.dm
index 26b56be2315..915d0072434 100644
--- a/code/modules/mob/living/carbon/human/species/grey.dm
+++ b/code/modules/mob/living/carbon/human/species/grey.dm
@@ -81,7 +81,7 @@
 				to_chat(H, "<span class='notice'>A speech translator implant has been installed due to your role on the station.</span>")
 
 /datum/species/grey/handle_reagents(mob/living/carbon/human/H, datum/reagent/R)
-	if(R.id == "sacid")
+	if(R.id == "sacid" || R.id == "facid")
 		H.reagents.remove_reagent(R.id, REAGENTS_METABOLISM)
 		return FALSE
 	if(R.id == "water")
diff --git a/code/modules/reagents/chemistry/reagents/toxins.dm b/code/modules/reagents/chemistry/reagents/toxins.dm
index b69c8256c0b..c286c6a8ae4 100644
--- a/code/modules/reagents/chemistry/reagents/toxins.dm
+++ b/code/modules/reagents/chemistry/reagents/toxins.dm
@@ -334,7 +334,7 @@
 	return ..() | update_flags
 
 /datum/reagent/acid/facid/reaction_mob(mob/living/M, method = REAGENT_TOUCH, volume)
-	if(ishuman(M))
+	if(ishuman(M) && !isgrey(M))
 		var/mob/living/carbon/human/H = M
 		if(method == REAGENT_TOUCH)
 			if(volume > 9)