Sun activated inks
Sunlight inks can be used to alert consumers about the dangers of over exposure to sunlight. While food products are out on the picnic table or families are outside having fun, friendly reminders can appear alerting consumers not to leave their mayonnaise out in the sun or to apply more sunscreen throughout the day.
Take Me Outside
Example: Often consumers forget the importance of reapplying sunscreen; this sunscreen reminds consumers when they need to apply or reapply sunscreen. The alert will only be visible while outdoors in the sun.