A shade guide is a tool used to measure the current color of a client’s teeth and to track the progress of whitening treatments. This guide helps the technician at SOS Wax and Skincare to determine the starting point and to set realistic expectations for the whitening outcome. Clients should be informed about how the shade guide works and how it will be used to show the improvement in their teeth’s brightness. This transparency helps build trust and ensures clients understand the achievable results. Providing this information is especially valuable for clients who are curious about the potential changes in their teeth color and want to see visible evidence of their whitening progress.