It’s called Castello Tonic Water and comes from the water brand Castello.
At the center, the Portuguese natural mineral water and carbonated water, the original product of Castello. The quinine - originally discovered plants of South America - is then added.
The first Portuguese premium tonic water, which is also a brand new product, is produced in Moura, Alentejo, and hits stores in bottles of 20cl.
The information is not much, but let's hope to prove to give our opinion.