Ethical Nutrients Lysine Viral Cold Sore Defence is a dietary supplement that comes in a bottle containing 60 tablets. This product is designed to provide support for people who suffer from cold sores, which are caused by the herpes simplex virus. The active ingredient in this supplement is Lysine, which is an essential amino acid that has been shown to help prevent and reduce the occurrence of cold sores. Other ingredients in this supplement may include Vitamin C, Zinc, and Bioflavonoids, which are also believed to support immune system function and promote healing. As with any dietary supplement, it's important to follow the manufacturer's instructions for use and consult with a professional before taking this product if you have any medical conditions or are taking any medications. It's also important to note that dietary supplements are not intended to diagnose, treat, cure, or prevent any disease.