Garlic oil is used as a nutritional supplement, and is sometimes marketed in the form of capsules, which may be diluted with other ingredients. Some commercial preparations are produced with various levels of dilution, such as a preparation that contains 10% garlic oil.
Garlic oil has antifungal and antibiotic properties, but there is insufficient clinical research confirming such effects. It is also sold in health food stores as a digestive aid.
It can be used as an insecticide, diluted with water and sprayed on plants.
Garlic-flavored oil is produced and used for cooking and seasoning purposes, and is sometimes used as an ingredient in seasoning mixtures.