diff --git a/src/app/(user)/mypage/layout.tsx b/src/app/(user)/mypage/layout.tsx
index 9314c0d8..5c3fc051 100644
--- a/src/app/(user)/mypage/layout.tsx
+++ b/src/app/(user)/mypage/layout.tsx
@@ -1,5 +1,3 @@
-import { redirect } from 'next/navigation';
-
 import { dehydrate, HydrationBoundary } from '@tanstack/react-query';
 
 import { API } from '@/api';
@@ -10,17 +8,15 @@ interface Props {
   children: React.ReactNode;
 }
 
+export const dynamic = 'force-dynamic';
+
 const MyPageLayout = async ({ children }: Props) => {
   const queryClient = getQueryClient();
 
-  try {
-    await queryClient.fetchQuery({
-      queryKey: userKeys.me(),
-      queryFn: () => API.userService.getMe(),
-    });
-  } catch {
-    redirect('/login');
-  }
+  await queryClient.fetchQuery({
+    queryKey: userKeys.me(),
+    queryFn: () => API.userService.getMe(),
+  });
 
   return <HydrationBoundary state={dehydrate(queryClient)}>{children}</HydrationBoundary>;
 };
diff --git a/src/app/(user)/profile/[userId]/layout.tsx b/src/app/(user)/profile/[userId]/layout.tsx
index f174a250..d0d00266 100644
--- a/src/app/(user)/profile/[userId]/layout.tsx
+++ b/src/app/(user)/profile/[userId]/layout.tsx
@@ -1,4 +1,4 @@
-import { redirect } from 'next/navigation';
+import { notFound, redirect } from 'next/navigation';
 
 import { dehydrate, HydrationBoundary } from '@tanstack/react-query';
 
@@ -15,22 +15,19 @@ const ProfileLayout = async ({ children, params }: Props) => {
   const { userId: id } = await params;
   const userId = Number(id);
 
-  const { cookies } = await import('next/headers');
-  const cookieStore = await cookies();
-  const myId = Number(cookieStore.get('userId')?.value);
-
-  // 본인 id와 같은지 확인 후 같으면 mypage로 리다이렉트
-  if (userId === myId) {
-    redirect('/mypage');
-  }
+  // userId가 숫자가 아닌 경우 notFound redirect 처리
+  if (isNaN(userId)) notFound();
 
   const queryClient = getQueryClient();
 
-  await queryClient.fetchQuery({
+  const user = await queryClient.fetchQuery({
     queryKey: userKeys.item(userId),
     queryFn: () => API.userService.getUser({ userId }),
   });
 
+  // isFollow가 null이면 본인 페이지 이므로 mypage로 redirect 처리
+  if (user.isFollow === null) redirect('/mypage');
+
   return <HydrationBoundary state={dehydrate(queryClient)}>{children}</HydrationBoundary>;
 };
 
diff --git a/src/mock/service/user/user-mock.ts b/src/mock/service/user/user-mock.ts
index 389cde55..6e87ffc0 100644
--- a/src/mock/service/user/user-mock.ts
+++ b/src/mock/service/user/user-mock.ts
@@ -15,7 +15,7 @@ export const mockUserItems: User[] = [
     createdAt: '2025-12-07T17:00:00+09:00',
     groupJoinedCnt: 5,
     groupCreatedCnt: 3,
-    isFollow: true,
+    isFollow: null,
   },
   {
     userId: 2,
diff --git a/src/types/service/user.ts b/src/types/service/user.ts
index 71eaa520..18fe57f0 100644
--- a/src/types/service/user.ts
+++ b/src/types/service/user.ts
@@ -11,7 +11,7 @@ export interface User {
   groupCreatedCnt: number;
   isNotificationEnabled: boolean;
   createdAt: string;
-  isFollow: boolean;
+  isFollow: boolean | null;
 }
 
 export interface GetUserPathParams {