PatchMD C Plus Topical Patch. Vitamin C is a water-soluble nutrient with revered antioxidant and immune supportive properties.* How To Use Apply patch daily to an area with little or no hair, i.e., shoulder, back or hip. For best results, it is recommended to wear PatchMD patches for 8 hours. There is no additional benefit wearing the patch longer than 8 hours. Avoid using any lotion or cream in the same area as it will inhibit absorption. Patch is not waterproof. Patches May also be worn overnight while you sleep. Multiple patches can be worn at the same time. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. PatchMD C Plus Topical Patch. Vitamin C is a water-soluble nutrient with revered antioxidant and immune supportive properties.* Comprehensive Vitamin C , Citrus Bioflavonoids and Quercetin Blend. How To Use Apply patch daily to an area with little or no hair, i.e., shoulder, back or hip. For best results, it is recommended to wear PatchMD patches for 8 hours. There is no additional benefit wearing the patch longer than 8 hours. Avoid using any lotion or cream in the same area as it will inhibit absorption. Patch is not waterproof. Patches May also be worn overnight while you sleep. Multiple patches can be worn at the same time. *These statements have not been evaluated by the Food and Drug Administration. This product is not intended to dia