From the website Limonello contains lemongrass, lemon peels and dried apple.
It is available in a 3.2oz canister for $10.95.
When I first opened this one I love the tart lemony smell. I was curious what the dried apples would add to the mix. Once brewed I mostly tasted the lemon peel and lemongrass; there may have been a touch of sweetness from the apples, but I mostly got lemon. Not that I wish to relegate this purely to use for illness, but with a little bit of honey I think this one would be the perfect cold remedy. Of course, I could also imagine it hot with a bit of cake or with a scone.