GUTsy Captain Kombucha Zero - Ginger and Lemon is part of the brand's Zero sub-range, a non-alcoholic kombucha line formulated without sugar or calories. It parallels the standard Ginger and Lemon variant in the permanent range while sitting within the Zero series' stripped-back formulation. The Zero sub-range was a distinct launch by the brand, offering the authentic fermented tea character of the standard range in a zero-sugar form.