diff --git a/packages/effect-fc/src/Component.ts b/packages/effect-fc/src/Component.ts
index 548182f..1dbd9b7 100644
--- a/packages/effect-fc/src/Component.ts
+++ b/packages/effect-fc/src/Component.ts
@@ -1,7 +1,8 @@
-import { Context, Effect, type Equivalence, ExecutionStrategy, Function, pipe, Pipeable, Predicate, Runtime, Scope, String, Tracer, type Utils } from "effect"
+import { Context, Effect, ExecutionStrategy, Function, pipe, Pipeable, Predicate, Runtime, Scope, String, Tracer, type Utils } from "effect"
 import * as React from "react"
 import * as Hook from "./Hook.js"
-import type { ExcludeKeys } from "./utils.js"
+import * as Memoized from "./Memoized.js"
+import * as Suspense from "./Suspense.js"
 
 
 export const TypeId: unique symbol = Symbol.for("effect-fc/Component")
@@ -339,93 +340,15 @@ export const withOptions: {
 ))
 
 
-export interface Memoized<P> {
-    readonly memo: true
-    readonly memoOptions: Memoized.Options<P>
-}
-
-export namespace Memoized {
-    export interface Options<P> {
-        readonly propsAreEqual?: Equivalence.Equivalence<P>
-    }
-}
-
-export const memo = <T extends Component<any, any, any> | Component<any, any, any> & Memoized<any>>(
-    self: T
-): T & Memoized<Component.Props<T>> => Object.setPrototypeOf({
-    ...self,
-    memo: true,
-    memoOptions: Predicate.hasProperty(self, "memo") ? { ...self.memoOptions } : {},
-}, Object.getPrototypeOf(self))
-
-export const withMemoOptions: {
-    <T extends Component<any, any, any> & Memoized<any>>(
-        memoOptions: Partial<Memoized.Options<Component.Props<T>>>
-    ): (self: T) => T
-    <T extends Component<any, any, any> & Memoized<any>>(
-        self: T,
-        memoOptions: Partial<Memoized.Options<Component.Props<T>>>,
-    ): T
-} = Function.dual(2, <T extends Component<any, any, any> & Memoized<any>>(
-    self: T,
-    memoOptions: Partial<Memoized.Options<Component.Props<T>>>,
-): T => Object.setPrototypeOf(
-    { ...self, memoOptions: { ...self.memoOptions, ...memoOptions } },
-    Object.getPrototypeOf(self),
-))
-
-
-export interface Suspense {
-    readonly suspense: true
-    readonly suspenseOptions: Suspense.Options
-}
-
-export namespace Suspense {
-    export interface Options {
-        readonly defaultFallback?: React.ReactNode
-    }
-
-    export type Props = Omit<React.SuspenseProps, "children">
-}
-
-export const suspense = <T extends Component<any, any, P> | Component<any, any, P> & Suspense, P extends {}>(
-    self: T & Component<any, any, ExcludeKeys<P, keyof Suspense.Props>>
-): (
-    & T
-    & Component<Component.Error<T>, Component.Context<T>, P & Suspense.Props>
-    & Suspense
-) => Object.setPrototypeOf({
-    ...self,
-    suspense: true,
-    suspenseOptions: Predicate.hasProperty(self, "suspense") ? { ...self.suspenseOptions } : {},
-}, Object.getPrototypeOf(self))
-
-export const withSuspenseOptions: {
-    <T extends Component<any, any, any> & Suspense>(
-        suspenseOptions: Partial<Suspense.Options>
-    ): (self: T) => T
-    <T extends Component<any, any, any> & Suspense>(
-        self: T,
-        suspenseOptions: Partial<Suspense.Options>,
-    ): T
-} = Function.dual(2, <T extends Component<any, any, any> & Suspense>(
-    self: T,
-    suspenseOptions: Partial<Suspense.Options>,
-): T => Object.setPrototypeOf(
-    { ...self, suspense: true, suspenseOptions: { ...self.suspenseOptions, ...suspenseOptions } },
-    Object.getPrototypeOf(self),
-))
-
-
 export const useFC: {
     <E, R, P extends {}>(
-        self: Component<E, R, P> & Suspense
-    ): Effect.Effect<React.FC<P & Suspense.Props>, never, Exclude<R, Scope.Scope>>
+        self: Component<E, R, P> & Suspense.Suspense
+    ): Effect.Effect<React.FC<P & Suspense.Suspense.Props>, never, Exclude<R, Scope.Scope>>
     <E, R, P extends {}>(
         self: Component<E, R, P>
     ): Effect.Effect<React.FC<P>, never, Exclude<R, Scope.Scope>>
 } = Effect.fn("useFC")(function* <E, R, P extends {}>(
-    self: Component<E, R, P> & (Memoized<P> | Suspense | {})
+    self: Component<E, R, P> & (Memoized.Memoized<P> | Suspense.Suspense | {})
 ) {
     const runtimeRef = React.useRef<Runtime.Runtime<Exclude<R, Scope.Scope>>>(null!)
     runtimeRef.current = yield* Effect.runtime<Exclude<R, Scope.Scope>>()
@@ -439,20 +362,20 @@ export const useFC: {
         ))
 
         const FC = React.useMemo(() => {
-            const f: React.FC<P> = Predicate.hasProperty(self, "suspense")
+            const f: React.FC<P> = Suspense.isSuspense(self)
                 ? pipe(
                     function SuspenseInner(props: { readonly promise: Promise<React.ReactNode> }) {
                         return React.use(props.promise)
                     },
 
-                    SuspenseInner => ({ fallback, name, ...props }: P & Suspense.Props) => {
+                    SuspenseInner => ({ fallback, name, ...props }: P & Suspense.Suspense.Props) => {
                         const promise = Runtime.runPromise(runtimeRef.current)(
                             Effect.provideService(self.body(props as P), Scope.Scope, scope)
                         )
 
                         return React.createElement(
                             React.Suspense,
-                            { fallback: fallback ?? self.suspenseOptions.defaultFallback, name },
+                            { fallback: fallback ?? self.defaultFallback, name },
                             React.createElement(SuspenseInner, { promise }),
                         )
                     },
@@ -462,8 +385,8 @@ export const useFC: {
                 )
 
             f.displayName = self.displayName ?? "Anonymous"
-            return Predicate.hasProperty(self, "memo")
-                ? React.memo(f, self.memoOptions.propsAreEqual)
+            return Memoized.isMemoized(self)
+                ? React.memo(f, self.propsAreEqual)
                 : f
         }, [scope])
 
@@ -473,8 +396,8 @@ export const useFC: {
 
 export const use: {
     <E, R, P extends {}>(
-        self: Component<E, R, P> & Suspense,
-        fn: (Component: React.FC<P & Suspense.Props>) => React.ReactNode,
+        self: Component<E, R, P> & Suspense.Suspense,
+        fn: (Component: React.FC<P & Suspense.Suspense.Props>) => React.ReactNode,
     ): Effect.Effect<React.ReactNode, never, Exclude<R, Scope.Scope>>
     <E, R, P extends {}>(
         self: Component<E, R, P>,
@@ -487,14 +410,14 @@ export const use: {
 export const withRuntime: {
     <T extends Component<any, R, any>, R>(
         context: React.Context<Runtime.Runtime<R>>,
-    ): (self: T) => React.FC<T extends Suspense
-        ? Component.Props<T> & Suspense.Props
+    ): (self: T) => React.FC<T extends Suspense.Suspense
+        ? Component.Props<T> & Suspense.Suspense.Props
         : Component.Props<T>
     >
     <E, R, P extends {}>(
-        self: Component<E, R, P> & Suspense,
+        self: Component<E, R, P> & Suspense.Suspense,
         context: React.Context<Runtime.Runtime<R>>,
-    ): React.FC<P & Suspense.Props>
+    ): React.FC<P & Suspense.Suspense.Props>
     <E, R, P extends {}>(
         self: Component<E, R, P>,
         context: React.Context<Runtime.Runtime<R>>,
diff --git a/packages/effect-fc/src/Memoized.ts b/packages/effect-fc/src/Memoized.ts
new file mode 100644
index 0000000..4400c34
--- /dev/null
+++ b/packages/effect-fc/src/Memoized.ts
@@ -0,0 +1,42 @@
+import { type Equivalence, Function, Predicate } from "effect"
+import type * as Component from "./Component.js"
+
+
+export const TypeId: unique symbol = Symbol.for("effect-fc/Memoized")
+export type TypeId = typeof TypeId
+
+export interface Memoized<P> extends Memoized.Options<P> {
+    readonly [TypeId]: true
+}
+
+export namespace Memoized {
+    export interface Options<P> {
+        readonly propsAreEqual?: Equivalence.Equivalence<P>
+    }
+}
+
+
+export const isMemoized = (u: unknown): u is Memoized<any> => Predicate.hasProperty(u, TypeId)
+
+export const memo = <T extends Component.Component<any, any, any>>(
+    self: T
+): T & Memoized<Component.Component.Props<T>> => Object.setPrototypeOf(
+    { ...self, [TypeId]: true },
+    Object.getPrototypeOf(self),
+)
+
+export const withOptions: {
+    <T extends Component.Component<any, any, any> & Memoized<any>>(
+        options: Partial<Memoized.Options<Component.Component.Props<T>>>
+    ): (self: T) => T
+    <T extends Component.Component<any, any, any> & Memoized<any>>(
+        self: T,
+        options: Partial<Memoized.Options<Component.Component.Props<T>>>,
+    ): T
+} = Function.dual(2, <T extends Component.Component<any, any, any> & Memoized<any>>(
+    self: T,
+    options: Partial<Memoized.Options<Component.Component.Props<T>>>,
+): T => Object.setPrototypeOf(
+    { ...self, ...options },
+    Object.getPrototypeOf(self),
+))
diff --git a/packages/effect-fc/src/Suspense.ts b/packages/effect-fc/src/Suspense.ts
new file mode 100644
index 0000000..b6aeba8
--- /dev/null
+++ b/packages/effect-fc/src/Suspense.ts
@@ -0,0 +1,49 @@
+import { Function, Predicate } from "effect"
+import type * as Component from "./Component.js"
+import type { ExcludeKeys } from "./utils.js"
+
+
+export const TypeId: unique symbol = Symbol.for("effect-fc/Suspense")
+export type TypeId = typeof TypeId
+
+export interface Suspense extends Suspense.Options {
+    readonly [TypeId]: true
+}
+
+export namespace Suspense {
+    export interface Options {
+        readonly defaultFallback?: React.ReactNode
+    }
+
+    export type Props = Omit<React.SuspenseProps, "children">
+}
+
+
+export const isSuspense = (u: unknown): u is Suspense => Predicate.hasProperty(u, TypeId)
+
+export const suspense = <T extends Component.Component<any, any, P>, P extends {}>(
+    self: T & Component.Component<any, any, ExcludeKeys<P, keyof Suspense.Props>>
+): (
+    & T
+    & Component.Component<Component.Component.Error<T>, Component.Component.Context<T>, P & Suspense.Props>
+    & Suspense
+) => Object.setPrototypeOf(
+    { ...self, [TypeId]: true },
+    Object.getPrototypeOf(self),
+)
+
+export const withOptions: {
+    <T extends Component.Component<any, any, any> & Suspense>(
+        options: Partial<Suspense.Options>
+    ): (self: T) => T
+    <T extends Component.Component<any, any, any> & Suspense>(
+        self: T,
+        options: Partial<Suspense.Options>,
+    ): T
+} = Function.dual(2, <T extends Component.Component<any, any, any> & Suspense>(
+    self: T,
+    options: Partial<Suspense.Options>,
+): T => Object.setPrototypeOf(
+    { ...self, ...options },
+    Object.getPrototypeOf(self),
+))
diff --git a/packages/effect-fc/src/index.ts b/packages/effect-fc/src/index.ts
index 4318eff..fd1ade9 100644
--- a/packages/effect-fc/src/index.ts
+++ b/packages/effect-fc/src/index.ts
@@ -1,3 +1,5 @@
 export * as Component from "./Component.js"
 export * as Hook from "./Hook.js"
+export * as Memoized from "./Memoized.js"
 export * as ReactManagedRuntime from "./ReactManagedRuntime.js"
+export * as Suspense from "./Suspense.js"