It's CZ

Dietary Supplement: 30 Vegetable Capsules

Vitamin C (as Ascorbic Acid) 500mg

Zinc (as Zinc Picolinate) 20mg

Other Ingredients: Micro Crystalline Cellulose (USP), Vegetable Capsule (cellulose, purified water). 

No artificial colors, artificial flavors, milk or milk derivatives, or sodium added.