diff --git a/flow/react-native-host-hooks.js b/flow/react-native-host-hooks.js
index 1e4a048ae4..7c0a1b5c39 100644
--- a/flow/react-native-host-hooks.js
+++ b/flow/react-native-host-hooks.js
@@ -40,4 +40,6 @@ declare module 'UIManager' {
   declare function setChildren() : void;
   declare function updateView() : void;
 }
-declare module 'View' { }
+declare module 'View' {
+  declare var exports : typeof ReactComponent;
+}
diff --git a/grunt/config/browserify.js b/grunt/config/browserify.js
index 332af66f22..3c06303a3c 100644
--- a/grunt/config/browserify.js
+++ b/grunt/config/browserify.js
@@ -19,13 +19,8 @@ var SECRET_INTERNALS_NAME = 'React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_
 var shimSharedModulesFiles = {
   './ReactCurrentOwner': SECRET_INTERNALS_NAME + '.ReactCurrentOwner',
   './ReactComponentTreeHook': SECRET_INTERNALS_NAME + '.ReactComponentTreeHook',
-  // The methods we used here are exposed on the main React export.
-  // TODO: Change all renderer code to require the isomorphic React directly
-  // instead of these internals.
+  // Use the global, anywhere we require React
   './React': 'React',
-  './ReactElement': 'React',
-  './ReactPropTypes': 'React.PropTypes',
-  './ReactChildren': 'React.Children',
 };
 
 // We can access these as absolute or relative. We need to shim both.
diff --git a/gulpfile.js b/gulpfile.js
index 20b54944eb..d5bd834620 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -111,20 +111,11 @@ var moduleMapReact = Object.assign(
 );
 
 var rendererSharedState = {
+  // Alias
+  React: 'react/lib/React',
   // Shared state
   ReactCurrentOwner: 'react/lib/ReactCurrentOwner',
   ReactComponentTreeHook: 'react/lib/ReactComponentTreeHook',
-
-  // TODO: Move to shared since these are actually shared and can be copied.
-  ReactPropTypeLocations: 'react/lib/ReactPropTypeLocations',
-  ReactPropTypesSecret: 'react/lib/ReactPropTypesSecret',
-  checkReactTypeSpec: 'react/lib/checkReactTypeSpec',
-
-  // TODO: Update the source to just use the React module.
-  React: 'react/lib/React',
-  ReactElement: 'react/lib/ReactElement',
-  ReactPropTypes: 'react/lib/ReactPropTypes',
-  ReactChildren: 'react/lib/ReactChildren',
 };
 
 var moduleMapReactDOM = Object.assign(
diff --git a/src/isomorphic/classic/element/ReactElement.js b/src/isomorphic/classic/element/ReactElement.js
index 64a0e13e14..9544a8cc73 100644
--- a/src/isomorphic/classic/element/ReactElement.js
+++ b/src/isomorphic/classic/element/ReactElement.js
@@ -17,11 +17,7 @@ var warning = require('warning');
 var canDefineProperty = require('canDefineProperty');
 var hasOwnProperty = Object.prototype.hasOwnProperty;
 
-// The Symbol used to tag the ReactElement type. If there is no native Symbol
-// nor polyfill, then a plain number is used for performance.
-var REACT_ELEMENT_TYPE =
-  (typeof Symbol === 'function' && Symbol.for && Symbol.for('react.element')) ||
-  0xeac7;
+var REACT_ELEMENT_TYPE = require('ReactElementSymbol');
 
 var RESERVED_PROPS = {
   key: true,
@@ -390,6 +386,4 @@ ReactElement.isValidElement = function(object) {
   );
 };
 
-ReactElement.REACT_ELEMENT_TYPE = REACT_ELEMENT_TYPE;
-
 module.exports = ReactElement;
diff --git a/src/renderers/dom/client/ReactMount.js b/src/renderers/dom/client/ReactMount.js
index ec158c1754..d7f24aaf38 100644
--- a/src/renderers/dom/client/ReactMount.js
+++ b/src/renderers/dom/client/ReactMount.js
@@ -13,12 +13,12 @@
 
 var DOMLazyTree = require('DOMLazyTree');
 var DOMProperty = require('DOMProperty');
+var React = require('React');
 var ReactBrowserEventEmitter = require('ReactBrowserEventEmitter');
 var ReactCurrentOwner = require('ReactCurrentOwner');
 var ReactDOMComponentTree = require('ReactDOMComponentTree');
 var ReactDOMContainerInfo = require('ReactDOMContainerInfo');
 var ReactDOMFeatureFlags = require('ReactDOMFeatureFlags');
-var ReactElement = require('ReactElement');
 var ReactFeatureFlags = require('ReactFeatureFlags');
 var ReactInstanceMap = require('ReactInstanceMap');
 var ReactInstrumentation = require('ReactInstrumentation');
@@ -423,7 +423,7 @@ var ReactMount = {
   _renderSubtreeIntoContainer: function(parentComponent, nextElement, container, callback) {
     ReactUpdateQueue.validateCallback(callback, 'ReactDOM.render');
     invariant(
-      ReactElement.isValidElement(nextElement),
+      React.isValidElement(nextElement),
       'ReactDOM.render(): Invalid component element.%s',
       (
         typeof nextElement === 'string' ?
@@ -450,7 +450,7 @@ var ReactMount = {
       'for your app.'
     );
 
-    var nextWrappedElement = ReactElement.createElement(
+    var nextWrappedElement = React.createElement(
       TopLevelWrapper,
       { child: nextElement }
     );
diff --git a/src/renderers/dom/client/wrappers/LinkedValueUtils.js b/src/renderers/dom/client/wrappers/LinkedValueUtils.js
index d13630d6f5..22a10279d5 100644
--- a/src/renderers/dom/client/wrappers/LinkedValueUtils.js
+++ b/src/renderers/dom/client/wrappers/LinkedValueUtils.js
@@ -11,7 +11,7 @@
 
 'use strict';
 
-var ReactPropTypes = require('ReactPropTypes');
+var React = require('React');
 var ReactPropTypeLocations = require('ReactPropTypeLocations');
 var ReactPropTypesSecret = require('ReactPropTypesSecret');
 
@@ -84,7 +84,7 @@ var propTypes = {
       'set either `onChange` or `readOnly`.'
     );
   },
-  onChange: ReactPropTypes.func,
+  onChange: React.PropTypes.func,
 };
 
 var loggedTypeFailures = {};
diff --git a/src/renderers/dom/client/wrappers/ReactDOMOption.js b/src/renderers/dom/client/wrappers/ReactDOMOption.js
index 295f961d03..2a2a28a180 100644
--- a/src/renderers/dom/client/wrappers/ReactDOMOption.js
+++ b/src/renderers/dom/client/wrappers/ReactDOMOption.js
@@ -11,7 +11,7 @@
 
 'use strict';
 
-var ReactChildren = require('ReactChildren');
+var React = require('React');
 var ReactDOMComponentTree = require('ReactDOMComponentTree');
 var ReactDOMSelect = require('ReactDOMSelect');
 
@@ -23,7 +23,7 @@ function flattenChildren(children) {
 
   // Flatten children and warn if they aren't strings or numbers;
   // invalid types are ignored.
-  ReactChildren.forEach(children, function(child) {
+  React.Children.forEach(children, function(child) {
     if (child == null) {
       return;
     }
diff --git a/src/renderers/dom/server/ReactServerRendering.js b/src/renderers/dom/server/ReactServerRendering.js
index 64de3870bf..ff08fe8ff0 100644
--- a/src/renderers/dom/server/ReactServerRendering.js
+++ b/src/renderers/dom/server/ReactServerRendering.js
@@ -10,9 +10,9 @@
  */
 'use strict';
 
+var React = require('React');
 var ReactDOMContainerInfo = require('ReactDOMContainerInfo');
 var ReactDefaultBatchingStrategy = require('ReactDefaultBatchingStrategy');
-var ReactElement = require('ReactElement');
 var ReactInstrumentation = require('ReactInstrumentation');
 var ReactMarkupChecksum = require('ReactMarkupChecksum');
 var ReactReconciler = require('ReactReconciler');
@@ -80,7 +80,7 @@ function renderToStringImpl(element, makeStaticMarkup) {
  */
 function renderToString(element) {
   invariant(
-    ReactElement.isValidElement(element),
+    React.isValidElement(element),
     'renderToString(): You must pass a valid ReactElement.'
   );
   return renderToStringImpl(element, false);
@@ -93,7 +93,7 @@ function renderToString(element) {
  */
 function renderToStaticMarkup(element) {
   invariant(
-    ReactElement.isValidElement(element),
+    React.isValidElement(element),
     'renderToStaticMarkup(): You must pass a valid ReactElement.'
   );
   return renderToStringImpl(element, true);
diff --git a/src/renderers/native/ReactNative.js b/src/renderers/native/ReactNative.js
index 0305ff2447..23648da925 100644
--- a/src/renderers/native/ReactNative.js
+++ b/src/renderers/native/ReactNative.js
@@ -16,7 +16,6 @@
 var ReactNativeComponentTree = require('ReactNativeComponentTree');
 var ReactNativeDefaultInjection = require('ReactNativeDefaultInjection');
 
-var ReactElement = require('ReactElement');
 var ReactNativeMount = require('ReactNativeMount');
 var ReactUpdates = require('ReactUpdates');
 
@@ -25,7 +24,7 @@ var findNodeHandle = require('findNodeHandle');
 ReactNativeDefaultInjection.inject();
 
 var render = function(
-  element: ReactElement,
+  element: ReactElement<any>,
   mountInto: number,
   callback?: ?(() => void)
 ): ?ReactComponent<any, any, any> {
diff --git a/src/renderers/native/ReactNativeDefaultInjection.js b/src/renderers/native/ReactNativeDefaultInjection.js
index 42f3d115b4..4d15ab5771 100644
--- a/src/renderers/native/ReactNativeDefaultInjection.js
+++ b/src/renderers/native/ReactNativeDefaultInjection.js
@@ -22,9 +22,9 @@ require('InitializeJavaScriptAppEngine');
 var EventPluginHub = require('EventPluginHub');
 var EventPluginUtils = require('EventPluginUtils');
 var RCTEventEmitter = require('RCTEventEmitter');
+var React = require('React');
 var ReactComponentEnvironment = require('ReactComponentEnvironment');
 var ReactDefaultBatchingStrategy = require('ReactDefaultBatchingStrategy');
-var ReactElement = require('ReactElement');
 var ReactEmptyComponent = require('ReactEmptyComponent');
 var ReactNativeBridgeEventPlugin = require('ReactNativeBridgeEventPlugin');
 var ReactHostComponent = require('ReactHostComponent');
@@ -83,7 +83,7 @@ function inject() {
     // Can't import View at the top because it depends on React to make its composite
     var View = require('View');
     return new ReactSimpleEmptyComponent(
-      ReactElement.createElement(View, {
+      React.createElement(View, {
         collapsable: true,
         style: { position: 'absolute' },
       }),
diff --git a/src/renderers/native/ReactNativeMount.js b/src/renderers/native/ReactNativeMount.js
index 080fe428f4..2d508631ab 100644
--- a/src/renderers/native/ReactNativeMount.js
+++ b/src/renderers/native/ReactNativeMount.js
@@ -11,7 +11,7 @@
  */
 'use strict';
 
-var ReactElement = require('ReactElement');
+var React = require('React');
 var ReactInstrumentation = require('ReactInstrumentation');
 var ReactNativeContainerInfo = require('ReactNativeContainerInfo');
 var ReactNativeTagHandles = require('ReactNativeTagHandles');
@@ -35,9 +35,9 @@ if (__DEV__) {
   TopLevelWrapper.displayName = 'TopLevelWrapper';
 }
 TopLevelWrapper.prototype.render = function() {
-  // this.props is actually a ReactElement
-  return this.props;
+  return this.props.child;
 };
+TopLevelWrapper.isReactTopLevelWrapper = true;
 
 /**
  * Mounts this component and inserts it into the DOM.
@@ -99,25 +99,20 @@ var ReactNativeMount = {
    * @param {containerTag} containerView Handle to native view tag
    */
   renderComponent: function(
-    nextElement: ReactElement,
+    nextElement: ReactElement<*>,
     containerTag: number,
     callback?: ?(() => void)
   ): ?ReactComponent<any, any, any> {
-    var nextWrappedElement = new ReactElement(
+    var nextWrappedElement = React.createElement(
       TopLevelWrapper,
-      null,
-      null,
-      null,
-      null,
-      null,
-      nextElement
+      { child: nextElement }
     );
 
     var topRootNodeID = containerTag;
     var prevComponent = ReactNativeMount._instancesByContainerID[topRootNodeID];
     if (prevComponent) {
       var prevWrappedElement = prevComponent._currentElement;
-      var prevElement = prevWrappedElement.props;
+      var prevElement = prevWrappedElement.props.child;
       if (shouldUpdateReactComponent(prevElement, nextElement)) {
         ReactUpdateQueue.enqueueElementInternal(prevComponent, nextWrappedElement, emptyObject);
         if (callback) {
diff --git a/src/renderers/shared/fiber/ReactChildFiber.js b/src/renderers/shared/fiber/ReactChildFiber.js
index c3621c30ad..a0e5608b62 100644
--- a/src/renderers/shared/fiber/ReactChildFiber.js
+++ b/src/renderers/shared/fiber/ReactChildFiber.js
@@ -18,9 +18,7 @@ import type { PriorityLevel } from 'ReactPriorityLevel';
 
 import type { ReactNodeList } from 'ReactTypes';
 
-var {
-  REACT_ELEMENT_TYPE,
-} = require('ReactElement');
+var REACT_ELEMENT_TYPE = require('ReactElementSymbol');
 var {
   REACT_COROUTINE_TYPE,
   REACT_YIELD_TYPE,
diff --git a/src/renderers/shared/fiber/ReactFiber.js b/src/renderers/shared/fiber/ReactFiber.js
index 2bcfe3f496..fb3d6f9723 100644
--- a/src/renderers/shared/fiber/ReactFiber.js
+++ b/src/renderers/shared/fiber/ReactFiber.js
@@ -26,8 +26,6 @@ var {
   YieldComponent,
 } = ReactTypeOfWork;
 
-var ReactElement = require('ReactElement');
-
 var {
   NoWork,
 } = require('ReactPriorityLevel');
@@ -201,7 +199,8 @@ exports.createHostContainerFiber = function() {
   return fiber;
 };
 
-exports.createFiberFromElement = function(element : ReactElement, priorityLevel : PriorityLevel) {
+exports.createFiberFromElement = function(element : ReactElement<*>, priorityLevel : PriorityLevel) {
+// $FlowFixMe: ReactElement.key is currently defined as ?string but should be defined as null | string in Flow.
   const fiber = createFiberFromElementType(element.type, element.key);
   fiber.pendingProps = element.props;
   fiber.pendingWorkPriority = priorityLevel;
diff --git a/src/renderers/shared/stack/reconciler/ReactCompositeComponent.js b/src/renderers/shared/stack/reconciler/ReactCompositeComponent.js
index ec3f31d41a..13db6d1bed 100644
--- a/src/renderers/shared/stack/reconciler/ReactCompositeComponent.js
+++ b/src/renderers/shared/stack/reconciler/ReactCompositeComponent.js
@@ -11,9 +11,9 @@
 
 'use strict';
 
+var React = require('React');
 var ReactComponentEnvironment = require('ReactComponentEnvironment');
 var ReactCurrentOwner = require('ReactCurrentOwner');
-var ReactElement = require('ReactElement');
 var ReactErrorUtils = require('ReactErrorUtils');
 var ReactInstanceMap = require('ReactInstanceMap');
 var ReactInstrumentation = require('ReactInstrumentation');
@@ -49,7 +49,7 @@ StatelessComponent.prototype.render = function() {
 function warnIfInvalidElement(Component, element) {
   if (__DEV__) {
     warning(
-      element === null || element === false || ReactElement.isValidElement(element),
+      element === null || element === false || React.isValidElement(element),
       '%s(...): A valid React element (or null) must be returned. You may have ' +
       'returned undefined, an array or some other invalid object.',
       Component.displayName || Component.name || 'Component'
@@ -212,7 +212,7 @@ var ReactCompositeComponentMixin = {
       invariant(
         inst === null ||
         inst === false ||
-        ReactElement.isValidElement(inst),
+        React.isValidElement(inst),
         '%s(...): A valid React element (or null) must be returned. You may have ' +
         'returned undefined, an array or some other invalid object.',
         Component.displayName || Component.name || 'Component'
@@ -1078,7 +1078,7 @@ var ReactCompositeComponentMixin = {
     invariant(
       // TODO: An `isValidNode` function would probably be more appropriate
       renderedComponent === null || renderedComponent === false ||
-      ReactElement.isValidElement(renderedComponent),
+      React.isValidElement(renderedComponent),
       '%s.render(): A valid React element (or null) must be returned. You may have ' +
         'returned undefined, an array or some other invalid object.',
       this.getName() || 'ReactCompositeComponent'
diff --git a/src/renderers/shared/stack/reconciler/ReactNodeTypes.js b/src/renderers/shared/stack/reconciler/ReactNodeTypes.js
index 2b5e40376d..7b8d6f2094 100644
--- a/src/renderers/shared/stack/reconciler/ReactNodeTypes.js
+++ b/src/renderers/shared/stack/reconciler/ReactNodeTypes.js
@@ -14,7 +14,7 @@
 
 type ReactNodeType = 0 | 1 | 2;
 
-var ReactElement = require('ReactElement');
+var React = require('React');
 
 var invariant = require('invariant');
 
@@ -26,7 +26,7 @@ var ReactNodeTypes = {
   getType: function(node: ReactElement<any>): ReactNodeType {
     if (node === null || node === false) {
       return ReactNodeTypes.EMPTY;
-    } else if (ReactElement.isValidElement(node)) {
+    } else if (React.isValidElement(node)) {
       if (typeof node.type === 'function') {
         return ReactNodeTypes.COMPOSITE;
       } else {
diff --git a/src/renderers/testing/ReactTestMount.js b/src/renderers/testing/ReactTestMount.js
index c022b9f356..d964a1390a 100644
--- a/src/renderers/testing/ReactTestMount.js
+++ b/src/renderers/testing/ReactTestMount.js
@@ -11,7 +11,7 @@
  */
 'use strict';
 
-var ReactElement = require('ReactElement');
+var React = require('React');
 var ReactReconciler = require('ReactReconciler');
 var ReactUpdates = require('ReactUpdates');
 
@@ -31,9 +31,9 @@ if (__DEV__) {
   TopLevelWrapper.displayName = 'TopLevelWrapper';
 }
 TopLevelWrapper.prototype.render = function() {
-  // this.props is actually a ReactElement
-  return this.props;
+  return this.props.child;
 };
+TopLevelWrapper.isReactTopLevelWrapper = true;
 
 /**
  * Mounts this component and inserts it into the DOM.
@@ -88,14 +88,9 @@ ReactTestInstance.prototype.update = function(nextElement) {
     this._component,
     "ReactTestRenderer: .update() can't be called after unmount."
   );
-  var nextWrappedElement = new ReactElement(
+  var nextWrappedElement = React.createElement(
     TopLevelWrapper,
-    null,
-    null,
-    null,
-    null,
-    null,
-    nextElement
+    { child: nextElement }
   );
   var component = this._component;
   ReactUpdates.batchedUpdates(function() {
@@ -142,14 +137,9 @@ var ReactTestMount = {
   render: function(
     nextElement: ReactElement<any>
   ): ReactTestInstance {
-    var nextWrappedElement = new ReactElement(
+    var nextWrappedElement = React.createElement(
       TopLevelWrapper,
-      null,
-      null,
-      null,
-      null,
-      null,
-      nextElement
+      { child: nextElement }
     );
 
     var instance = instantiateReactComponent(nextWrappedElement, false);
diff --git a/src/isomorphic/classic/types/ReactPropTypeLocationNames.js b/src/shared/types/ReactPropTypeLocationNames.js
similarity index 100%
rename from src/isomorphic/classic/types/ReactPropTypeLocationNames.js
rename to src/shared/types/ReactPropTypeLocationNames.js
diff --git a/src/isomorphic/classic/types/ReactPropTypeLocations.js b/src/shared/types/ReactPropTypeLocations.js
similarity index 100%
rename from src/isomorphic/classic/types/ReactPropTypeLocations.js
rename to src/shared/types/ReactPropTypeLocations.js
diff --git a/src/isomorphic/classic/types/ReactPropTypesSecret.js b/src/shared/types/ReactPropTypesSecret.js
similarity index 100%
rename from src/isomorphic/classic/types/ReactPropTypesSecret.js
rename to src/shared/types/ReactPropTypesSecret.js
diff --git a/src/isomorphic/classic/types/checkReactTypeSpec.js b/src/shared/types/checkReactTypeSpec.js
similarity index 100%
rename from src/isomorphic/classic/types/checkReactTypeSpec.js
rename to src/shared/types/checkReactTypeSpec.js
diff --git a/src/shared/utils/ReactElementSymbol.js b/src/shared/utils/ReactElementSymbol.js
new file mode 100644
index 0000000000..7547e2471b
--- /dev/null
+++ b/src/shared/utils/ReactElementSymbol.js
@@ -0,0 +1,20 @@
+/**
+ * Copyright 2014-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree. An additional grant
+ * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @providesModule ReactElementSymbol
+ */
+
+'use strict';
+
+// The Symbol used to tag the ReactElement type. If there is no native Symbol
+// nor polyfill, then a plain number is used for performance.
+var REACT_ELEMENT_TYPE =
+  (typeof Symbol === 'function' && Symbol.for && Symbol.for('react.element')) ||
+  0xeac7;
+
+module.exports = REACT_ELEMENT_TYPE;
diff --git a/src/shared/utils/traverseAllChildren.js b/src/shared/utils/traverseAllChildren.js
index 20d6e8eb52..60b5f147aa 100644
--- a/src/shared/utils/traverseAllChildren.js
+++ b/src/shared/utils/traverseAllChildren.js
@@ -12,7 +12,7 @@
 'use strict';
 
 var ReactCurrentOwner = require('ReactCurrentOwner');
-var ReactElement = require('ReactElement');
+var REACT_ELEMENT_TYPE = require('ReactElementSymbol');
 
 var getIteratorFn = require('getIteratorFn');
 var invariant = require('invariant');
@@ -22,6 +22,12 @@ var warning = require('warning');
 var SEPARATOR = '.';
 var SUBSEPARATOR = ':';
 
+/**
+ * This is inlined from ReactElement since this file is shared between
+ * isomorphic and renderers. We could extract this to a
+ *
+ */
+
 /**
  * TODO: Test that a single child and an array with one item have the same key
  * pattern.
@@ -71,7 +77,9 @@ function traverseAllChildrenImpl(
   if (children === null ||
       type === 'string' ||
       type === 'number' ||
-      ReactElement.isValidElement(children)) {
+      // The following is inlined from ReactElement. This means we can optimize
+      // some checks. React Fiber also inlines this logic for similar purposes.
+      (type === 'object' && children.$$typeof === REACT_ELEMENT_TYPE)) {
     callback(
       traverseContext,
       children,
diff --git a/src/test/ReactTestUtils.js b/src/test/ReactTestUtils.js
index 5689f8432c..810f273940 100644
--- a/src/test/ReactTestUtils.js
+++ b/src/test/ReactTestUtils.js
@@ -19,7 +19,6 @@ var React = require('React');
 var ReactDefaultInjection = require('ReactDefaultInjection');
 var ReactDOM = require('ReactDOM');
 var ReactDOMComponentTree = require('ReactDOMComponentTree');
-var ReactElement = require('ReactElement');
 var ReactBrowserEventEmitter = require('ReactBrowserEventEmitter');
 var ReactCompositeComponent = require('ReactCompositeComponent');
 var ReactInstanceMap = require('ReactInstanceMap');
@@ -61,7 +60,7 @@ function findAllInRenderedTreeInternal(inst, test) {
       );
     }
   } else if (
-    ReactElement.isValidElement(currentElement) &&
+    React.isValidElement(currentElement) &&
     typeof currentElement.type === 'function'
   ) {
     ret = ret.concat(
@@ -92,12 +91,12 @@ var ReactTestUtils = {
   },
 
   isElement: function(element) {
-    return ReactElement.isValidElement(element);
+    return React.isValidElement(element);
   },
 
   isElementOfType: function(inst, convenienceConstructor) {
     return (
-      ReactElement.isValidElement(inst) &&
+      React.isValidElement(inst) &&
       inst.type === convenienceConstructor
     );
   },
@@ -108,7 +107,7 @@ var ReactTestUtils = {
 
   isDOMComponentElement: function(inst) {
     return !!(inst &&
-              ReactElement.isValidElement(inst) &&
+              React.isValidElement(inst) &&
               !!inst.tagName);
   },
 
@@ -136,7 +135,7 @@ var ReactTestUtils = {
   },
 
   isCompositeComponentElement: function(inst) {
-    if (!ReactElement.isValidElement(inst)) {
+    if (!React.isValidElement(inst)) {
       return false;
     }
     // We check the prototype of the type that will get mounted, not the
@@ -440,7 +439,7 @@ ReactShallowRenderer.prototype.render = function(element, context) {
   ReactDefaultInjection.inject();
 
   invariant(
-    ReactElement.isValidElement(element),
+    React.isValidElement(element),
     'ReactShallowRenderer render(): Invalid component element.%s',
     typeof element === 'function' ?
       ' Instead of passing a component class, make sure to instantiate ' +