The ADVANCED PRO FORMULA tan boosting facial serum from St. Moriz is a self-tanning solution designed specifically for the face. This innovative serum provides users with precise control over their tanning process through a straightforward and user-friendly application method. To achieve the desired glow, simply combine a few drops of this serum with your regular facial moisturizer. Within hours, a natural-looking tan will begin to emerge, giving you complete control over the intensity. You can apply it multiple times to reach your ideal shade or use it as a booster to prolong your existing tan. It has been professionally tested in salons and features a formula that is dermatologically approved.