Pumpkin seed oil is derived from the unhusked seeds of pumpkin and has been traditionally made in parts of Europe for more than 300 years. Cucurbita pepo is the taxonomic name of pumpkins, but there are dozens of cultivars and subspecies from which this oil is now made.
The fatty acids found in pumpkin seed oil also boast antioxidant properties, so when this oil is topically applied, it is known to reduce skin inflammation, stimulate the growth of new cells, defend against infections and oxidative stress in skin cells, and generally improve the appearance of wrinkles and blemishes related to age. Pumpkin seed oil is also a rich source of vitamin E, which has powerful effects on skin appearance and texture.
Source: Organic Facts