zCleanse Reviews seeks to increase immunity and give people greater vitality. When your immune system is weak, you are more likely to get certain diseases, like shingles or other conditions. It is also this specific virus that causes chickenpox. The Centers for Disease Control and Prevention (CDC) estimates that one million people get shingles each year. The likelihood is increased for those over. This is because the defense system isn't operating as well as it could be. The immunization is available, but some requirements must be met before you may get it.