diff --git a/app/controllers/items_controller.rb b/app/controllers/items_controller.rb
index b3c0bba6..fc720a04 100644
--- a/app/controllers/items_controller.rb
+++ b/app/controllers/items_controller.rb
@@ -122,14 +122,19 @@ class ItemsController < ApplicationController
       return
     end
 
+    # For Dyeworks items whose base is currently in the NC Mall, preload their
+    # trade values. We'll use this to determine which ones are fully buyable rn
+    # (because Owls tracks this data and we don't).
+    Item.preload_nc_trade_values(@items.select(&:dyeworks_base_buyable?))
+
     # Group the items by category!
     @nc_mall_items = @items.select(&:currently_in_mall?).
-      reject(&:dyeworks_active?)
-    @active_dyeworks_items = @items.select(&:dyeworks_active?)
+      reject(&:dyeworks_buyable?)
+    @buyable_dyeworks_items = @items.select(&:dyeworks_buyable?)
     @np_items = @items.select(&:np?)
     @pb_items = @items.select(&:pb?)
     @other_nc_items = @items.select(&:nc?).reject(&:currently_in_mall?).
-      reject(&:dyeworks_active?)
+      reject(&:dyeworks_buyable?)
 
     # Start loading the NC trade values for the non-Mall NC items.
     trade_values_task = Async { Item.preload_nc_trade_values(@other_nc_items) }
diff --git a/app/models/item.rb b/app/models/item.rb
index c5168e8e..48009725 100644
--- a/app/models/item.rb
+++ b/app/models/item.rb
@@ -203,11 +203,27 @@ class Item < ApplicationRecord
   end
 
   # Whether this is a Dyeworks item whose base item can currently be purchased
-  # in the NC Mall, then dyed via Dyeworks.
-  def dyeworks_active?
+  # in the NC Mall. It may or may not currently be *dyeable* in the NC Mall,
+  # because Dyeworks eligibility is often a limited-time event.
+  def dyeworks_base_buyable?
     dyeworks_base_item.present? && dyeworks_base_item.currently_in_mall?
   end
 
+  # Whether this is one of the few Dyeworks items that can be dyed in the NC
+  # Mall at any time, rather than as part of a limited-time event. (Owls tracks
+  # this, not us!)
+  def dyeworks_permanent?
+    nc_trade_value.value_text.include?("Permanent Dyeworks")
+  end
+
+  # Whether this is a Dyeworks item whose base item can currently be purchased
+  # in the NC Mall, then dyed via Dyeworks. (Owls tracks this last part!)
+  def dyeworks_buyable?
+    # TODO: Add support for limited-time Dyeworks items. Does Owls offer this
+    # info too? (At time of writing, there are no active Dyeworks events.)
+    dyeworks_base_buyable? && dyeworks_permanent?
+  end
+
   DYEWORKS_NAME_PATTERN = %r{
     ^(
       # Most Dyeworks items have a colon in the name.
diff --git a/app/views/items/sources.html.haml b/app/views/items/sources.html.haml
index bbcb0353..d27e0c8b 100644
--- a/app/views/items/sources.html.haml
+++ b/app/views/items/sources.html.haml
@@ -29,7 +29,7 @@
 						= cart_icon alt: ""
 						Buy (#{item.current_nc_price} NC)
 
-- if @active_dyeworks_items.present?
+- if @buyable_dyeworks_items.present?
 	%h2 Dyeworks items
 	:markdown
 		These are recolored "Dyeworks" variants of items. First get the "base"
@@ -37,9 +37,6 @@
 		[Dyeworks][dyeworks] section of the NC Mall! Potions can also be bought in
 		bundles of 5 or 10.
 
-		TODO: This is currently incorrect! Dyeworks items can't always be dyed, we
-		need to keep track of which ones actually can be right now!
-
 		[dyeworks]: https://www.neopets.com/mall/dyeworks/
 	%table.item-list
 		%thead
@@ -47,23 +44,23 @@
 				= image_tag "https://images.neopets.com/items/mall_80x80_cleaning.gif",
 					alt: "Dyeworks Hue Brew Potion"
 			%th
-				Total: #{dyeworks_nc_total_for @active_dyeworks_items} NC
+				Total: #{dyeworks_nc_total_for @buyable_dyeworks_items} NC
 				= surround "(", ")" do
 					%span.price-breakdown{
-						title: "#{dyeworks_items_nc_total_for(@active_dyeworks_items)} NC"
+						title: "#{dyeworks_items_nc_total_for(@buyable_dyeworks_items)} NC"
 					}<
-						#{pluralize @active_dyeworks_items.size, "item"}
+						#{pluralize @buyable_dyeworks_items.size, "item"}
 					+
 					%span.price-breakdown{
-						title: dyeworks_potions_nc_summary(@active_dyeworks_items.size)
+						title: dyeworks_potions_nc_summary(@buyable_dyeworks_items.size)
 					}<
-						#{pluralize @active_dyeworks_items.size, "potion"}
+						#{pluralize @buyable_dyeworks_items.size, "potion"}
 			%td.actions-cell
 				%button{onclick: "alert('Todo!')"}
 					= cart_icon alt: ""
 					Buy all in NC Mall
 		%tbody
-			- @active_dyeworks_items.each do |item|
+			- @buyable_dyeworks_items.each do |item|
 				= render "item_list_row", item:,
 					subtitle: dyeworks_explanation_subtitle_for(item) do
 					%button{onclick: "alert('Todo!')"}