diff --git a/code/game/dna/dna2.dm b/code/game/dna/dna2.dm
index c51f265e78c..d4b1a0d44a6 100644
--- a/code/game/dna/dna2.dm
+++ b/code/game/dna/dna2.dm
@@ -67,6 +67,10 @@ var/global/list/bad_blocks[0]
 	var/struc_enzymes="" // Encoded SE
 	var/unique_enzymes="" // MD5 of player name
 
+	// Original Encoded SE, for use with Ryetalin
+	var/struc_enzymes_original="" // Encoded SE
+	var/list/SE_original[DNA_SE_LENGTH]
+
 	// Internal dirtiness checks
 	var/dirtyUI=0
 	var/dirtySE=0
@@ -89,6 +93,7 @@ var/global/list/bad_blocks[0]
 /datum/dna/proc/Clone()
 	var/datum/dna/new_dna = new()
 	new_dna.unique_enzymes=unique_enzymes
+	new_dna.struc_enzymes_original=struc_enzymes_original // will make clone's SE the same as the original, do we want this?
 	new_dna.b_type=b_type
 	new_dna.mutantrace=mutantrace
 	new_dna.real_name=real_name
@@ -362,10 +367,16 @@ var/global/list/bad_blocks[0]
 
 // BACK-COMPAT!
 //  Initial DNA setup.  I'm kind of wondering why the hell this doesn't just call the above.
+//    ready_dna is (hopefully) only used on mob creation, and sets the struc_enzymes_original and SE_original only once - Bone White
+
 /datum/dna/proc/ready_dna(mob/living/carbon/human/character)
+
 	ResetUIFrom(character)
 
 	ResetSE()
 
+	struc_enzymes_original = struc_enzymes // sets the original struc_enzymes when ready_dna is called
+	SE_original = SE
+
 	unique_enzymes = md5(character.real_name)
 	reg_dna[unique_enzymes] = character.real_name
diff --git a/code/modules/reagents/Chemistry-Reagents.dm b/code/modules/reagents/Chemistry-Reagents.dm
index 0466235341e..d9d14e37579 100644
--- a/code/modules/reagents/Chemistry-Reagents.dm
+++ b/code/modules/reagents/Chemistry-Reagents.dm
@@ -1115,11 +1115,25 @@ datum
 			on_mob_life(var/mob/living/M as mob)
 				if(!M) M = holder.my_atom
 
-				var/needs_update = M.mutations.len > 0
+				var/needs_update = 1 //M.mutations.len > 0
 
+				//Ryetalyn now cures by a random chance per on_mob_life call - Bone White
+				// 1 volume = ~2% chance
+				// 10 volume = ~17% chance
+				// 30 volume = ~38% chance
+				if (rand(0, 50+volume) > 50 && ishuman(M))
+					for(var/block=1;block<=DNA_SE_LENGTH;block++)
+						M.dna.SetSEState(block,0)
+						genemutcheck(M,block,null,MUTCHK_FORCED)
+						M.update_mutations()
+
+					M.dna.struc_enzymes = M.dna.struc_enzymes_original
+
+				/* Old Code (non-functional)
 				M.mutations = list()
 				M.disabilities = 0
 				M.sdisabilities = 0
+				*/
 
 				// Might need to update appearance for hulk etc.
 				if(needs_update && ishuman(M))