Hyssop is used as an ingredient in eau de Cologne and the liqueur Chartreuse. It is also used to color the spirit Absinthe, along with Melissa and Roman wormwood.Hyssop is also used, usually in combination with other herbs such as liquorice,in herbal remedies, especially for lung conditions. The essential oils of hyssop can cause fatal convulsions in rats,and may not be as safe as most people believe.

 Ritual use

Hyssop is also often used to fill the Catholic ceremonial Aspergillum, which the priest dips into a bowl of holy water, and sprinkles onto the congregation to bless them. To wit, the invocation in Gregorio Allegri's Miserere states Thou shalt purge me with hyssop, and I shall be clean:. However, researchers have suggested that the Biblical accounts refer not to the plant currently known as hyssop but rather to one of a number of different herbs."

 Culinary use

Hyssop leaves have a slightly bitter minty flavor and can be added to soups, salads, or meats, although should be used sparingly, as the flavor is very strong.