SFI Health L-Lysine 100c

I love this product, firstly because it comes from an allergen friendly facility so I feel safe having it in my house and giving it to my children with food allergies. My husband has cold sores on a regular basis and this works quickly to get rid of them. He usually has relief within 24 hours. I'm not sure if we really need a 2 pack because we use it fairly infrequently and he only needs 1-2 doses.