Custom-fit whitening trays are designed specifically for an individual’s teeth to ensure even and effective application of the whitening gel. These trays are typically provided by a dental professional and are more effective than over-the-counter options because they offer a precise fit, reducing the risk of gum irritation and ensuring that the gel is distributed evenly across the teeth. At SOS Wax and Skincare, clients interested in at-home whitening should be advised about the benefits of using custom-fit trays compared to generic ones. Understanding the advantages of custom trays helps clients achieve better results with greater comfort. This tip is particularly important for clients who want to maintain their whitening results with at-home treatments, as it ensures they receive the best possible care. Providing this information helps clients make informed decisions about their whitening regimen and supports them in achieving optimal results with minimal side effects.