Disclosed herein is a method of producing a muscadine pomace extract. The method can include combining a bronze muscadine pomace extract with a purple muscadine pomace extract to produce a muscadine pomace extract, wherein the ratio of bronze muscadine pomace extract to purple muscadine pomace extract ranges from 0.1 to 10 (weight to weight), such as from 0.3 to 3 (weight to weight), and the muscadine pomace extract has a polyphenol content of at least 2%. Also disclosed herein is a muscadine pomace extract for use as an antioxidant, such as for use as an anti-aging supplement. The composition can include a muscadine (Vitis rotundifolid) pomace extract having a polyphenol content of at least 2% and other active ingredients.