KLEOS Mastiha Spirit is Greeceâs first luxury spirit brand, the worldâs first super-premium mastiha liqueur.The raw ingredient, Mastiha (mas-tee-hah) is a sap from the âSkinosâ tree that grows only in 24 villages in the southern part of the Greek island of Chios.Mastiha is known as the âdiamond of spicesâ because of its rarity, and the ancient worldâs âsuper ingredientâ due to its variety of healing properties, and has the honor of being the worldâs first chewing gum.KLEOS is made by hand in small batches, via a distillation of the rare Mastiha âtearsâ and the addition of Mastiha essential oils. Balanced enough to be consumed on the rocks with a wedge of lemon, and the ultimate cocktail ingredient! It mixes 1:1 with every base spirit on your backbar and a myriad of fruits and herbs.