diff --git a/skinr.module b/skinr.module
index 2d19df649f6cca557b0c2aaa5ff20024e48f386d..6b5744c32f924499ee58e860dd11d9f62c7a9979 100644
--- a/skinr.module
+++ b/skinr.module
@@ -92,36 +92,42 @@ function skinr_preprocess(&$variables, $hook) {
   // An array of $elements based on $module and $original_hook, derived from $variables.
   $array_elements = skinr_invoke_all('skinr_elements', $variables, $original_hook, 'preprocess');
   foreach ($array_elements as $module => $elements) {
-    if (empty($elements)) {
-      // We can receive empty arrays; if that happens, there's no point
-      // in continuing.
-      continue;
-    }
+    $applied_skins = array();
+    foreach ($elements as $element) {
+      $cid = 'skinr_preprocess:' . $module . ':' . $element . ':' . $data['current_theme'];
+      if ($cached = cache_get($cid)) {
+        $applied_skins = $cached->data;
+      }
+      else {
+        // Get a list of skin configuration IDs to pass to
+        // skinr_skin_load_multiple().
+        $params = array(
+          'theme' => $data['current_theme'],
+          'module' => $module,
+          'element' => $element,
+          'status' => 1,
+        );
+        $sids = skinr_skin_get_sids($params);
+        $skins = !empty($sids) ? skinr_skin_load_multiple($sids) : array();
+
+        // Invoke hook_skinr_preprocess_alter() in all modules.
+        $context = array(
+          'hook' => $hook,
+          'variables' => &$variables,
+          'theme' => $data['current_theme'],
+          'module' => $module,
+          'elements' => $elements,
+        );
+        drupal_alter('skinr_preprocess', $skins, $context);
 
-    // Get a list of skin configuration IDs to pass to
-    // skinr_skin_load_multiple().
-    $params = array(
-      'theme' => $data['current_theme'],
-      'module' => $module,
-      'element' => $elements,
-      'status' => 1,
-    );
-    $sids = skinr_skin_get_sids($params);
-    $skins = !empty($sids) ? skinr_skin_load_multiple($sids) : array();
-
-    // Invoke hook_skinr_preprocess_alter() in all modules.
-    $context = array(
-      'hook' => $hook,
-      'variables' => &$variables,
-      'theme' => $data['current_theme'],
-      'module' => $module,
-      'elements' => $elements,
-    );
-    drupal_alter('skinr_preprocess', $skins, $context);
+        $applied_skins = array();
+        foreach ($skins as $skin) {
+          $applied_skins = array($skin->skin => $skin->options) + $applied_skins;
+        }
 
-    $applied_skins = array();
-    foreach ($skins as $skin) {
-      $applied_skins = array($skin->skin => $skin->options) + $applied_skins;
+        // Cache data.
+        cache_set($cid, $applied_skins);
+      }
     }
 
     // Use drupal_process_attached() to add attachements such as JS and CSS.
@@ -634,6 +640,8 @@ function skinr_skin_save(&$skin) {
   // @todo Once we have a more granular reset for skinr_skin_load_multiple(), we
   //   need to use it here.
   drupal_static_reset('skinr_skin_load_multiple');
+  // Clear preprocess cache.
+  cache_clear_all('skinr_preprocess:' . $skin->module . ':' . $skin->element . ':', 'cache', TRUE);
 
   return $status;
 }