Note to previous customers: We recently upgraded our software, and you may have to re-enter your information during checkout. We apologize for the inconvenience.
Natural sunlight is the best source of Vitamin D—but how long should you stay in the sun without sun protection? These patented solar sensors take the guess work out of gauging the real-time intensity of UV light. By changing color, they are designed to help determine the amount of time necessary to attain your optimal Vitamin D dosage—naturally!
Choking hazard. Keep out of the reach of children under 3 years of age. Store at room temperature.