Addition Studio, Australian Native Bath Brew. Bath Brew is a giant tea bag for the bath, used as a remedial & relaxing bath soak. Steep in this tonic and enjoy the benefits.Australian Native : Native Ground Wattle seed, & Pink Ochre, with Blue Cypress & Macadamia Oil. Size: 120 x 120 x 15 mm (100g bag) Origin: Blended by hand, packed with care in Australia.