diff --git a/packages/reffuse/src/Reffuse.ts b/packages/reffuse/src/Reffuse.ts
index 07d9779..1d7b3d3 100644
--- a/packages/reffuse/src/Reffuse.ts
+++ b/packages/reffuse/src/Reffuse.ts
@@ -68,18 +68,18 @@ export class Reffuse<R> {
         ])
     }
 
-    // useEffect<A, E>(
-    //     effect: Effect.Effect<A, E, RuntimeR | ContextR | Scope.Scope>,
-    //     deps?: React.DependencyList,
-    //     options?: RenderOptions,
-    // ): void {
-    //     const runSync = this.useRunSync()
+    useEffect<A, E>(
+        effect: Effect.Effect<A, E, R | Scope.Scope>,
+        deps?: React.DependencyList,
+        options?: RenderOptions,
+    ): void {
+        const runSync = this.useRunSync()
 
-    //     return React.useEffect(() => { runSync(effect) }, [
-    //         ...options?.doNotReExecuteOnRuntimeOrContextChange ? [] : [runSync],
-    //         ...(deps ?? []),
-    //     ])
-    // }
+        return React.useEffect(() => { runSync(Effect.scoped(effect)) }, [
+            ...options?.doNotReExecuteOnRuntimeOrContextChange ? [] : [runSync],
+            ...(deps ?? []),
+        ])
+    }
 
     useSuspense<A, E>(
         effect: Effect.Effect<A, E, R>,