diff --git a/09_palindromes/solution/palindromes-solution.js b/09_palindromes/solution/palindromes-solution.js
index 7950015..b731371 100644
--- a/09_palindromes/solution/palindromes-solution.js
+++ b/09_palindromes/solution/palindromes-solution.js
@@ -1,6 +1,19 @@
 const palindromes = function (string) {
-  const processedString = string.toLowerCase().replace(/[^a-z0-9]/g, "");
-  return processedString.split("").reverse().join("") == processedString;
+  // Since we only consider letters and numbers, create a variable containing all valid characters
+  let alphanumerical = 'abcdefghijklmnopqrstuvwxyz0123456789';
+
+  // Convert to lowercase, split to array of individual characters, filter only valid characters, then rejoin as new string
+  const cleanedString = string
+    .toLowerCase()
+    .split('')
+    .filter((character) => alphanumerical.includes(character))
+    .join('');
+
+  // Create a new reversed string for comparison
+  const reversedString = cleanedString.split('').reverse().join('');
+
+  // Return the outcome of the comparison which will either be true or false
+  return cleanedString === reversedString;
 };
 
 module.exports = palindromes;