Using a pigmentation treatment kit can help fade dark spots and even out skin tone, but protecting your skin from the sun is crucial during the process. The ingredients in these treatments make the skin more sensitive to UV rays, which can worsen pigmentation or undo progress. Sun protection helps prevent further darkening, maintains the results of the treatment, and protects sensitive skin from damage. Using a broad-spectrum sunscreen with SPF 30 or higher, reapplying regularly, and limiting sun exposure are key steps in ensuring effective treatment results.