diff --git a/modular_citadel/code/modules/reagents/chemistry/reagents/healing.dm b/modular_citadel/code/modules/reagents/chemistry/reagents/healing.dm
index a6a9d7a85f..a44cea5b24 100644
--- a/modular_citadel/code/modules/reagents/chemistry/reagents/healing.dm
+++ b/modular_citadel/code/modules/reagents/chemistry/reagents/healing.dm
@@ -200,22 +200,23 @@
 
 /datum/reagent/fermi/zeolites
 	name = "Artificial Zeolites"
-	description = "Lab made Zeolite, used to clear radiation from people and items alike! Splashing just a small amount(5u) onto any item can clear away large amounts of contamination."
+	description = "Lab made Zeolite, used to clear radiation from people and items alike! Splashing just a small amount(5u) onto any item can clear away large amounts of contamination, as long as purity is at least 0.7."
 	pH = 8
 	color = "#FFDADA"
-	metabolization_rate = 8 * REAGENTS_METABOLISM //Metabolizes fast but heals a lot!
-	value = REAGENT_VALUE_COMMON
+	metabolization_rate = 8 * REAGENTS_METABOLISM //Metabolizes fast but heals a lot! Lasts far longer if more pure.
+	value = REAGENT_VALUE_RARE //Relatively hard to make now, might be fine with VERY_RARE instead depending on feedback.
 
 /datum/reagent/fermi/zeolites/on_mob_life(mob/living/carbon/M)
+	metabolization_rate = (4 / purity) * REAGENTS_METABOLISM //Metab rate directly influenced by purity. Linear.
 	var/datum/component/radioactive/contamination = M.GetComponent(/datum/component/radioactive)
 	if(M.radiation > 0)
-		M.radiation -= min(M.radiation, 60)
+		M.radiation -= min(M.radiation, round(20 ** (0.5 + purity), 0.1)) //Far more effective if more pure. Tops out at ~90 at max purity. Exponential.
 	if(contamination && contamination.strength > 0)
-		contamination.strength -= min(contamination.strength, 100)
+		contamination.strength -= min(contamination.strength, round(25 ** (0.5 + purity), 0.1)) //Tops out at ~125 at max purity. Exponential.
 	..()
 
 /datum/reagent/fermi/zeolites/reaction_obj(obj/O, reac_volume)
 	var/datum/component/radioactive/contamination = O.GetComponent(/datum/component/radioactive)
-	if(contamination && reac_volume >= 5)
+	if(contamination && reac_volume >= 5 && purity >= 0.7) //you need at least 0.7 purity to instantly purge all contam on an object.
 		qdel(contamination)
 		return
diff --git a/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm b/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
index da9fd34cd6..4eee732e49 100644
--- a/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
+++ b/modular_citadel/code/modules/reagents/chemistry/recipes/fermi.dm
@@ -591,19 +591,20 @@
 /datum/chemical_reaction/fermi/zeolites
 	name = "Zeolites"
 	id = /datum/reagent/fermi/zeolites
-	results = list(/datum/reagent/fermi/zeolites = 5) //We make a lot!
+	results = list(/datum/reagent/fermi/zeolites = 5) //We make a lot! - But it's now pretty dangerous, too! The ingredients are supercheap after all...
 	required_reagents = list(/datum/reagent/medicine/potass_iodide = 1, /datum/reagent/aluminium = 1, /datum/reagent/silicon = 1, /datum/reagent/oxygen = 1)
 	//FermiChem vars:
-	OptimalTempMin 	= 300
-	OptimalTempMax 	= 900
-	ExplodeTemp 	= 1000 //check to see overflow doesn't happen!
-	OptimalpHMin 	= 4.0
-	OptimalpHMax 	= 6.0
+	OptimalTempMin 	= 350
+	OptimalTempMax 	= 750
+	ExplodeTemp 	= 850
+	OptimalpHMin 	= 2.8
+	OptimalpHMax 	= 5.5 //2.7 ph levels of optimal ph zone - centered at 4.15 - ph of ingredients mixed at equal values is 9.55; ph of result is 8.
 	ReactpHLim 		= 4
 	//CatalystFact 	= 0
-	CurveSharpT 	= 4
-	CurveSharppH 	= 0
-	ThermicConstant = 0
-	HIonRelease 	= 0.01
-	RateUpLim 		= 15
+	CurveSharpT 	= 2
+	CurveSharppH 	= 3
+	ThermicConstant = 5
+	HIonRelease 	= -0.1
+	RateUpLim 		= 2
+	PurityMin 		= 0.5 //Good luck.
 	FermiChem 		= TRUE