We just restocked in preparation for the vog. Eyes are lightly burning, slight headache, and feeling a bit sluggish. This stuff works. VOG Defense and Detox Cleanse were created by a phd to specifically treat the symptoms brought on by exposure to volcanic organic gasses. This pair work great combined. If you are visiting Big Island or live here I recommend getting both. You can find them at Healthy Pathways II in Kamuela.