diff --git a/code/modules/reagents/chemistry_properties/prop_positive.dm b/code/modules/reagents/chemistry_properties/prop_positive.dm
index aa88459c989c..2447dd925d38 100644
--- a/code/modules/reagents/chemistry_properties/prop_positive.dm
+++ b/code/modules/reagents/chemistry_properties/prop_positive.dm
@@ -854,6 +854,8 @@
 		return
 	var/mob/living/carbon/xenomorph/X = M
 	X.interference += (volume * potency)
+	if(X.interference > 90)
+		X.interference = 90
 
 /datum/chem_property/positive/neutralizing
 	name = PROPERTY_NEUTRALIZING