diff --git a/code/__DEFINES/genetics.dm b/code/__DEFINES/genetics.dm
index 157fa1c30b9..f64022136ef 100644
--- a/code/__DEFINES/genetics.dm
+++ b/code/__DEFINES/genetics.dm
@@ -81,3 +81,4 @@
 #define NO_INTORGANS	"no_internal_organs"
 #define CAN_WINGDINGS	"can_wingdings"
 #define NO_CLONESCAN 	"no_clone_scan"
+#define NO_HAIR			"no_hair"
diff --git a/code/datums/diseases/advance/symptoms/shedding.dm b/code/datums/diseases/advance/symptoms/shedding.dm
index 087231017b4..a1f244c5566 100644
--- a/code/datums/diseases/advance/symptoms/shedding.dm
+++ b/code/datums/diseases/advance/symptoms/shedding.dm
@@ -31,6 +31,8 @@ BONUS
 		to_chat(M, "<span class='warning'>[pick("Your scalp itches.", "Your skin feels flakey.")]</span>")
 		if(istype(M, /mob/living/carbon/human))
 			var/mob/living/carbon/human/H = M
+			if(NO_HAIR in H.dna.species.species_traits)
+				return // Hair can't fall out if you don't have any
 			var/obj/item/organ/external/head/head_organ = H.get_organ("head")
 			switch(A.stage)
 				if(3, 4)
diff --git a/code/game/gamemodes/blob/blobs/blob_mobs.dm b/code/game/gamemodes/blob/blobs/blob_mobs.dm
index 7c8bd56e822..14603c1681a 100644
--- a/code/game/gamemodes/blob/blobs/blob_mobs.dm
+++ b/code/game/gamemodes/blob/blobs/blob_mobs.dm
@@ -103,7 +103,7 @@
 	icon = H.icon
 	speak_emote = list("groans")
 	icon_state = "zombie2_s"
-	if(head_organ)
+	if(head_organ && !(NO_HAIR in H.dna.species.species_traits))
 		head_organ.h_style = null
 	H.update_hair()
 	human_overlays = H.overlays
diff --git a/code/modules/mob/living/carbon/human/human_defense.dm b/code/modules/mob/living/carbon/human/human_defense.dm
index 5b1e11d1437..4e3727aaf25 100644
--- a/code/modules/mob/living/carbon/human/human_defense.dm
+++ b/code/modules/mob/living/carbon/human/human_defense.dm
@@ -354,11 +354,12 @@ emp_act
 			if(prob(min(acidpwr * acid_volume / 10, 90))) //Applies disfigurement
 				head_organ.receive_damage(acidity, 2 * acidity)
 				emote("scream")
-				head_organ.h_style = "Bald"
-				head_organ.f_style = "Shaved"
-				update_hair()
-				update_fhair()
 				head_organ.disfigure()
+				if(!(NO_HAIR in dna.species.species_traits))
+					head_organ.h_style = "Bald"
+					head_organ.f_style = "Shaved"
+					update_hair()
+					update_fhair()
 
 		UpdateDamageIcon()
 
diff --git a/code/modules/mob/living/carbon/human/species/_species.dm b/code/modules/mob/living/carbon/human/species/_species.dm
index 9d642c155f8..215f43b2491 100644
--- a/code/modules/mob/living/carbon/human/species/_species.dm
+++ b/code/modules/mob/living/carbon/human/species/_species.dm
@@ -807,7 +807,7 @@
 
 	if(radiation > RAD_MOB_HAIRLOSS)
 		var/obj/item/organ/external/head/head_organ = H.get_organ("head")
-		if(!head_organ)
+		if(!head_organ || (NO_HAIR in species_traits))
 			return
 		if(prob(15) && head_organ.h_style != "Bald")
 			to_chat(H, "<span class='danger'>Your hair starts to fall out in clumps...</span>")
diff --git a/code/modules/mob/living/carbon/human/species/abductor.dm b/code/modules/mob/living/carbon/human/species/abductor.dm
index 058abc8d0cf..646dbe8ac58 100644
--- a/code/modules/mob/living/carbon/human/species/abductor.dm
+++ b/code/modules/mob/living/carbon/human/species/abductor.dm
@@ -13,7 +13,7 @@
 		"eyes" =     /obj/item/organ/internal/eyes/abductor //3 darksight.
 		)
 
-	species_traits = list(NO_BLOOD)
+	species_traits = list(NO_BLOOD, NO_HAIR)
 	inherent_traits = list(TRAIT_VIRUSIMMUNE, TRAIT_CHUNKYFINGERS, TRAIT_NOHUNGER, TRAIT_NOBREATH, TRAIT_NOEXAMINE)
 	dies_at_threshold = TRUE
 
diff --git a/code/modules/mob/living/carbon/human/species/diona.dm b/code/modules/mob/living/carbon/human/species/diona.dm
index ffb7510dd40..3813dedbdd7 100644
--- a/code/modules/mob/living/carbon/human/species/diona.dm
+++ b/code/modules/mob/living/carbon/human/species/diona.dm
@@ -20,6 +20,7 @@
 	even the simplest concepts of other minds. Their alien physiology allows them survive happily off a diet of nothing but light, \
 	water and other radiation."
 
+	species_traits = list(NO_HAIR)
 	inherent_traits = list(TRAIT_NOGERMS, TRAIT_NODECAY)
 	inherent_biotypes = MOB_ORGANIC | MOB_HUMANOID | MOB_PLANT
 	clothing_flags = HAS_SOCKS
diff --git a/code/modules/mob/living/carbon/human/species/drask.dm b/code/modules/mob/living/carbon/human/species/drask.dm
index 5eb62de833f..05767c244f1 100644
--- a/code/modules/mob/living/carbon/human/species/drask.dm
+++ b/code/modules/mob/living/carbon/human/species/drask.dm
@@ -31,7 +31,7 @@
 		"is sucking in warm air!",
 		"is holding their breath!")
 
-	species_traits = list(LIPS, IS_WHITELISTED)
+	species_traits = list(LIPS, IS_WHITELISTED, NO_HAIR)
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT
 	bodyflags = HAS_SKIN_TONE | HAS_BODY_MARKINGS
 	has_gender = FALSE
diff --git a/code/modules/mob/living/carbon/human/species/golem.dm b/code/modules/mob/living/carbon/human/species/golem.dm
index e940136702d..3880d578b58 100644
--- a/code/modules/mob/living/carbon/human/species/golem.dm
+++ b/code/modules/mob/living/carbon/human/species/golem.dm
@@ -4,7 +4,7 @@
 
 	icobase = 'icons/mob/human_races/r_golem.dmi'
 
-	species_traits = list(NO_BLOOD)
+	species_traits = list(NO_BLOOD, NO_HAIR)
 	inherent_traits = list(TRAIT_RESISTHEAT, TRAIT_NOBREATH, TRAIT_RESISTCOLD, TRAIT_RESISTHIGHPRESSURE, TRAIT_RESISTLOWPRESSURE, TRAIT_NOFIRE, TRAIT_CHUNKYFINGERS, TRAIT_RADIMMUNE, TRAIT_PIERCEIMMUNE, TRAIT_NOPAIN)
 	inherent_biotypes = MOB_HUMANOID | MOB_MINERAL
 	dies_at_threshold = TRUE
diff --git a/code/modules/mob/living/carbon/human/species/grey.dm b/code/modules/mob/living/carbon/human/species/grey.dm
index 008fa9b39ac..26b56be2315 100644
--- a/code/modules/mob/living/carbon/human/species/grey.dm
+++ b/code/modules/mob/living/carbon/human/species/grey.dm
@@ -18,7 +18,7 @@
 
 	brute_mod = 1.25 //greys are fragile
 
-	species_traits = list(LIPS, IS_WHITELISTED, CAN_WINGDINGS)
+	species_traits = list(LIPS, IS_WHITELISTED, CAN_WINGDINGS, NO_HAIR)
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT | HAS_SOCKS
 	bodyflags =  HAS_BODY_MARKINGS
 	dietflags = DIET_HERB
diff --git a/code/modules/mob/living/carbon/human/species/kidan.dm b/code/modules/mob/living/carbon/human/species/kidan.dm
index da887e261b6..df364f6122b 100644
--- a/code/modules/mob/living/carbon/human/species/kidan.dm
+++ b/code/modules/mob/living/carbon/human/species/kidan.dm
@@ -9,7 +9,7 @@
 	hunger_drain = 0.15
 	tox_mod = 1.7
 
-	species_traits = list(IS_WHITELISTED)
+	species_traits = list(IS_WHITELISTED, NO_HAIR)
 	inherent_biotypes = MOB_ORGANIC | MOB_HUMANOID | MOB_BUG
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT | HAS_SOCKS
 	bodyflags = HAS_HEAD_ACCESSORY | HAS_HEAD_MARKINGS | HAS_BODY_MARKINGS
diff --git a/code/modules/mob/living/carbon/human/species/plasmaman.dm b/code/modules/mob/living/carbon/human/species/plasmaman.dm
index 69f28131aa0..926ed17348e 100644
--- a/code/modules/mob/living/carbon/human/species/plasmaman.dm
+++ b/code/modules/mob/living/carbon/human/species/plasmaman.dm
@@ -5,7 +5,7 @@
 	dangerous_existence = TRUE //So so much
 	//language = "Clatter"
 
-	species_traits = list(IS_WHITELISTED, NO_BLOOD, NOTRANSSTING)
+	species_traits = list(IS_WHITELISTED, NO_BLOOD, NOTRANSSTING, NO_HAIR)
 	inherent_traits = list(TRAIT_RADIMMUNE, TRAIT_NOHUNGER)
 	inherent_biotypes = MOB_HUMANOID | MOB_MINERAL
 	forced_heartattack = TRUE // Plasmamen have no blood, but they should still get heart-attacks
diff --git a/code/modules/mob/living/carbon/human/species/skeleton.dm b/code/modules/mob/living/carbon/human/species/skeleton.dm
index a0f929f3f48..92207de211e 100644
--- a/code/modules/mob/living/carbon/human/species/skeleton.dm
+++ b/code/modules/mob/living/carbon/human/species/skeleton.dm
@@ -9,7 +9,7 @@
 	blood_color = "#FFFFFF"
 	flesh_color = "#E6E6C6"
 
-	species_traits = list(NO_BLOOD)
+	species_traits = list(NO_BLOOD, NO_HAIR)
 	inherent_traits = list(TRAIT_RESISTHEAT, TRAIT_NOBREATH, TRAIT_RESISTCOLD, TRAIT_RESISTHIGHPRESSURE, TRAIT_RESISTLOWPRESSURE, TRAIT_RADIMMUNE, TRAIT_PIERCEIMMUNE, TRAIT_NOHUNGER, TRAIT_XENO_IMMUNE)
 	inherent_biotypes = MOB_UNDEAD | MOB_HUMANOID
 	tox_mod = 0
diff --git a/code/modules/mob/living/carbon/human/species/skrell.dm b/code/modules/mob/living/carbon/human/species/skrell.dm
index 99fa6344253..1beed1d8773 100644
--- a/code/modules/mob/living/carbon/human/species/skrell.dm
+++ b/code/modules/mob/living/carbon/human/species/skrell.dm
@@ -12,7 +12,7 @@
 	the secrets of their empire to their allies."
 
 
-	species_traits = list(LIPS)
+	species_traits = list(LIPS, NO_HAIR)
 	inherent_traits = list(TRAIT_NOFAT, TRAIT_WATERBREATH)
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT | HAS_SOCKS
 	bodyflags = HAS_SKIN_COLOR | HAS_BODY_MARKINGS
diff --git a/code/modules/mob/living/carbon/human/species/wryn.dm b/code/modules/mob/living/carbon/human/species/wryn.dm
index 78b707aed31..a88b0efaf8b 100644
--- a/code/modules/mob/living/carbon/human/species/wryn.dm
+++ b/code/modules/mob/living/carbon/human/species/wryn.dm
@@ -34,7 +34,7 @@
 		"antennae" =    /obj/item/organ/internal/wryn/hivenode
 		)
 
-	species_traits = list(LIPS, IS_WHITELISTED, NO_CLONESCAN, HIVEMIND)
+	species_traits = list(LIPS, IS_WHITELISTED, NO_CLONESCAN, NO_HAIR, HIVEMIND)
 	inherent_traits = list(TRAIT_NOBREATH)
 	clothing_flags = HAS_UNDERWEAR | HAS_UNDERSHIRT | HAS_SOCKS
 	bodyflags = HAS_SKIN_COLOR
diff --git a/code/modules/mob/living/simple_animal/hostile/headcrab.dm b/code/modules/mob/living/simple_animal/hostile/headcrab.dm
index c093c8e3d36..8cd010d96e7 100644
--- a/code/modules/mob/living/simple_animal/hostile/headcrab.dm
+++ b/code/modules/mob/living/simple_animal/hostile/headcrab.dm
@@ -76,9 +76,9 @@
 	attacktext = "bites"
 	attack_sound = 'sound/creatures/zombie_attack.ogg'
 	icon_state = "zombie2_s"
-	if(head_organ)
+	if(head_organ && !(NO_HAIR in H.dna.species.species_traits))
 		head_organ.h_style = null
-	H.update_hair()
+		H.update_hair()
 	host_species = H.dna.species.name
 	human_overlays = H.overlays
 	update_icons()