The best home available handy anti-oxidant is turmeric that's daily used in kitchen cooking chores etc. Turmeric also acts as an antiseptic and has skin brightening properties. To remove tan on the face or any part of the body and also treat blemishes turmeric works the best.
Raw tomato peel itself has many antioxidants that allow the skin to glow when regularly used for facial skin cleansing. Lemon naturally has to brighten properties but it's advisable to use lemon in combination with other natural ingredients to avoid skin irritation on sensitive skin.