diff --git a/CHANGELOG.md b/CHANGELOG.md
index dae488a735..d3a0e3195f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,7 +4,7 @@
 -
 
 ### Client
--
+- Fix: リアクションの一部の絵文字が重複して表示されることがある問題を修正
 
 ### Server
 -
diff --git a/packages/frontend/src/composables/use-note-capture.ts b/packages/frontend/src/composables/use-note-capture.ts
index 90a5922b3e..2aeb9074e5 100644
--- a/packages/frontend/src/composables/use-note-capture.ts
+++ b/packages/frontend/src/composables/use-note-capture.ts
@@ -194,9 +194,9 @@ export function useNoteCapture(props: {
 	parentNote: Misskey.entities.Note | null;
 	mock?: boolean;
 }): {
-	$note: Reactive<ReactiveNoteData>;
-	subscribe: () => void;
-} {
+		$note: Reactive<ReactiveNoteData>;
+		subscribe: () => void;
+	} {
 	const { note, parentNote, mock } = props;
 
 	const $note = reactive<ReactiveNoteData>({
@@ -225,8 +225,8 @@ export function useNoteCapture(props: {
 	let latestPollVotedKey: string | null = null;
 
 	function onReacted(ctx: { userId: Misskey.entities.User['id']; reaction: string; emoji?: { name: string; url: string; }; }): void {
-		const normalizedName = ctx.reaction.replace(/^:(\w+):$/, ':$1@.:');
-
+		let normalizedName = ctx.reaction.replace(/^:(\w+):$/, ':$1@.:');
+		normalizedName = normalizedName.match('\u200d') ? normalizedName : normalizedName.replace(/\ufe0f/g, '');
 		if (reactionUserMap.has(ctx.userId) && reactionUserMap.get(ctx.userId) === normalizedName) return;
 		reactionUserMap.set(ctx.userId, normalizedName);
 
@@ -245,7 +245,8 @@ export function useNoteCapture(props: {
 	}
 
 	function onUnreacted(ctx: { userId: Misskey.entities.User['id']; reaction: string; emoji?: { name: string; url: string; }; }): void {
-		const normalizedName = ctx.reaction.replace(/^:(\w+):$/, ':$1@.:');
+		let normalizedName = ctx.reaction.replace(/^:(\w+):$/, ':$1@.:');
+		normalizedName = normalizedName.match('\u200d') ? normalizedName : normalizedName.replace(/\ufe0f/g, '');
 
 		// 確実に一度リアクションされて取り消されている場合のみ処理をとめる（APIで初回読み込み→Streamでアップデート等の場合、reactionUserMapに情報がないため）
 		if (reactionUserMap.has(ctx.userId) && reactionUserMap.get(ctx.userId) === noReaction) return;