Recently, investigators compared the radical scavenging and antioxidant activities of the phenolic compounds in six spice plants using spectrophotometric and chromatographic methods. They analyzed onion (Allium cepa), parsley (Petroselinum crispum) roots and leaves, and celery (Apium graveolens) roots and leaves, as well as dill (A. graveolens) leaves, and found that the total amounts of phenolic compounds and radical scavenging activity were greatest in celery leaves and dill extracts (J. Sep. Sci. 2011;34:1261-7).
It is worth noting that significant improvement in most measures of photoaged skin was observed after the use of a day and night regimen containing dill extract, blackberry leaf extract, and Zn-Cu(II) bi-mineral complex in patients with mild to moderate photodamage in a small (n = 33), single-center, open-label study led by the author (Baumann LS, Figueras KA, Bell M, Flitter CJ. Unpublished results). This small study supports the notion of dill contributing to cutaneous improvement in combination therapy.
Dill is a culinary spice used worldwide and has a history of traditional use in medicine. Current results suggest reasons for optimism in harnessing the medicinal properties of this plant for various uses in the modern armamentarium, particularly as an antibacterial agent. Much more research is necessary, of course, but recent findings regarding the elastogenesis effects of dill are encouraging and suggest the potential for dermatologic, particularly antiaging, applications.