4 Replacement Applicator Tips for the Clarisonic Opal Sonic Infusion System. For best results, Clarisonic recommend replacing your Opal Applicator Tip every 90 days. Removing & replacing the tip: Using your finger, fingernail or thumb, gently grasp below the rim of the hard plastic tip base & pop the tip off, being careful not to pull on the soft silicone. To replace the tip, press the tip firmly onto the black tip base. Listen for the snap for proper attachment.