A portable sunscreen stick with Spf 50+ that can be reapplied anytime and anywhere. Powered by SynchroShield technology, this invisible protective veil is strengthened when it senses water and heat, for peak protection during active and outdoor activities. The HeatForce technology is activated on hot days, after the formula is applied to the skin. To activate the WetForce technology, expose the area of application to water or perspiration for 30 minutes.