Kakadu Plum (Terminalia ferdinandiana), also called the gubinge, billygoat plum, is a flowering plant native to Australia, widespread throughout the tropical woodlands from northwestern Australia to eastern Arnhem Land. The fruits 
were eaten by Australian Aboriginal people on long treks or hunting trips and were considered more valuable as a medicine rather than as a food. Kakadu plum has a high concentration of vitamin C in its fruit: recorded concentrations of 2300-3150 mg/100 g wet weight and occasionally as high as 5300 mg/100 g, compared with 50 mg/100 g for oranges, ranks among the highest known of any natural source. Vitamin C is the most essential antioxidant that slows down the aging process. It helps to form proline, an amino acid that makes collagen.
Kakadu plum gives the skin a natural shine and glow. It protects skin cells & skin’s support structure from free radicals and other UV-related damage, increases the synthesis of collagen, reduces wrinkles and fades hyper-pigmentation and age spots.
Kakadu plum has phytochemicals like gallic and ellagic acids. Gallic acid is known for its antibacterial, antiviral, antifungal, anti-inflammatory, and anti-tumor properties. Gallic acid is an excellent wound healer and may have a use in the treatment of psorasis. Ellagic acid shows anti-carcinogenic effects to maintain healthy human tissues. It also encourages elasticity and suppleness in aged skin.