Each Package contains (10) patches, each patch will last for 3 days. Environmental Allergies not only contaminate our air, but these chemicals eventually land on the food that we eat, the soil where our crops are cultivated and into our water supply. These chemicals pose a wide range of health risks to everyone. Enviro3 offers a simple solution to this problem by providing bio-frequencies that support healthy immune boosting function. The patch is designed to support the immune system from environmental fallout. Effectively encourages the body to defend against viral and bacterial infections.