diff --git a/code/modules/reagents/chemistry/recipes/others.dm b/code/modules/reagents/chemistry/recipes/others.dm
index b463b5758b..347313cceb 100644
--- a/code/modules/reagents/chemistry/recipes/others.dm
+++ b/code/modules/reagents/chemistry/recipes/others.dm
@@ -47,6 +47,12 @@
 	results = list(/datum/reagent/consumable/sodiumchloride = 3)
 	required_reagents = list(/datum/reagent/water = 1, /datum/reagent/sodium = 1, /datum/reagent/chlorine = 1)
 
+/datum/chemical_reaction/preservahyde
+	name = "Preservahyde"
+	id = "preservahyde"
+	results = list(/datum/reagent/preservahyde = 3)
+	required_reagents = list(/datum/reagent/water = 1, /datum/reagent/toxin/formaldehyde = 1, /datum/reagent/bromine = 1)
+
 /datum/chemical_reaction/plasmasolidification
 	name = "Solid Plasma"
 	id = "solidplasma"