Buy 1:1 Mint Oil Tincture (600 mg) Online Europe. A 1:1 Mint Oil Tincture (600 mg) is a cannabis-based product containing equal parts of two or more main cannabinoids (e.g., THC and CBD) in a mint-flavored oil. The 600 mg refers to the total amount of active cannabinoids in the entire bottle, which is typically a 30 mL (1 oz) size.