Antioxidants
Thyme contains the flavonoids apigenin, naringenin, luteolin, and thymonin, which have antioxidant activity.

Bronchitis
A surveillance study was conducted to investigate the benefits of syrup extracts from thyme and ivy in treating acute bronchitis with productive cough. The results demonstrated that children and adolescents can be treated safely and effectively with the thyme and ivy syrup.
In another double blind, placebo-controlled study, extracts of thyme herb and primrose root or a placebo were administered over an 11-day to 361 patients with acute bronchitis. The results demonstrated the effectiveness of the thyme/primrose extract in the treatment of acute bronchitis.

Anti Fungal
A study at the Department of Pharmacology at the University of Milan in Italy has concluded that thymol, the major component of thyme oil, has the ability to interfere with the formation of candida.
A preliminary in-vitro study has determined the effectiveness of thymol, and other oil extracts in treating onychomycosis, the fungal infection of toe and fingernails.

The vapors of essential oil of thyme and thymol have also exhibited suppressive activity on molds from damp buildings, and could be used for disinfection of moldy walls.

Mosquito Repellent
Carvacrol, p-cymene, linalool, alpha-terpinene, and thymol are all ingredients derived from the essential oil of thyme, and have been studied for their mosquito repellent properties. In the study all 5 ingredients effectively repelled mosquitoes, and alpha-terpinene and carvacrol showed significantly greater repellent activity than a commercial formulation, with thymol showing similar repellent activity. The duration effectiveness of all 5 ingredients was equal to or higher than that of the commercial mosquito repellent.

Anti Bacterial
The thyme extract thymol is one of the ingredients in the anti bacterial Listerine mouthwash, which in studies has exhibited potent anti bacteria properties.

The results of a study demonstrated that the thyme oil ingredients carvacrol and p-cymene could potentially be used as antimicrobial agents in unpasteurized fruit juices.
In preliminary studies thyme and the essential oils thymol and carvacrol inhibited the formation of Shigella, a food borne bacteria that can cause severe dysentery.

In a study of the antimicrobial properties of 21 plant essential oils against 5 bacteria, of which Salmonella and E. coli were included, thyme oil was one of the most inhibitory.

Anti Inflammatory
The thymol in thyme inhibits elastase, an enzyme that breaks down elastin, and is considered a marker of inflammatory diseases.