Sometimes a specified formula does not fit your needs. So, If you need to mix and match your cleanser with a different line's moisturizer, and want a choice of eye serum - you have the freedom to do that with Your Essentials. Simply use the code 3STEPS to receive your discount for purchasing the three steps together! The Same goes with the Duos. If you want to mix and match cleanser and moisturizer lines, simply use the code 2STEPS! For Example, you may want to use the Balanced Clean, but want the power of the Luxurious Hydration. You deserve a discount too!