Zinc is involved in normal cell growth and repair and helps support the body's natural defenses.* Our zinc lozenges are specially formulated to contain the most active forms of zinc. Suggested Use: 1 lozenge every two hours as needed. For optimal results, dissolve completely in mouth, allowing prolonged contact in throat area. Avoid taking on an empty stomach or with citrus juices. Do not exceed 6 lozenges in a 24-hour period. Do not use for more than 3 days at a time. Over 40 Years of Trust. Source Naturals was created in 1982 by CEO Ira Goldberg to support everyone’s potential to enjoy optimal health. Manufactured in the USA. Manufactured in Scotts Valley, CA, under the Good Manufacturing Practices (cGMPs) established by the US Food and Drug Administration. (FDA)