An herbal extract most commonly used to season foods. Dill seed contains a volatile component called carvone that is believed to reduce intestinal gas. Dill came to prominence after Aveeno began promoting its elastin-regenerating properties in their Ageless Vitality products. There is one study indicating that on human skin samples and on "dermal equivalents" (which is not the same as intact human skin), dill generates key enzymes in skin that trigger elastin production, although no mention was made of dill being able to repair damaged elastin. Therefore, all we know is that dill seems to have this effect on isolated skin cells responsible for elastin production, but that doesn't necessarily translate to your skin (Sources: www.naturaldatabase.com; and Experimental Dermatology, August 2006, pages 574-581). However, more recent research done on skin samples and on intact human skin has explored the connection between dill and elastin further. It seems dill extract helps increase expression of an enzyme in skin that generates elastin and helps rebuild skin's structural integrity (Source: International Journal of Cosmetic Science, April 2011, pages 157-163). Dill may prove to be one of the few plant extracts whose anti-aging abilities influence elastin, which is typically much trickier to do than generate collagen.