I have several patches of comfrey planted around my property. I harvest the youngest, most tender leaves from various different plants to make this tincture. The comfrey is organic. My entire property is organic. I live far from the city or any factory farms that would contribute pollution. Everything is watered with untreated well water. The alcohol for this tincture is handmade on my property as well. It's completely organic. This ships in a 1 ounce glass dropper bottle.