Belgium
An intriguing mixer that bills itself as being "The alternative to lemon and lime" when it comes to cocktails. It's produced with distilled water alongside five different types of acid (citric, malic, tartaric, succinic and phosphoric) to mimic the acidity of citrus fruits, as well as a pinch of sugar and salt.

Replaces my lime juice, but doesn't go off. Makes amazing daiquiris and they're crystal clear too. I've used it for batching cocktails, making punch and super easy cordials. Doesn't need to be kept in the fridge and keeps for 2 years once opened. Very clever stuff.