Routine consumption of all kinds of anti-oxidant rich foods:

lycopene (cooked tomatoes and some pink/red fruits like watermelon, pink guava)

Green tea - which can also be applied topically. Make a green tea/ACV toner.

Linoleic acid- use a quality oil for a moisturizer or for oil cleansing.

Cacao - cocoa, dark chocolate

Proanthocyanids found in purple/black berries, fruits, tea, cocoa, purple cabbage and purple onions.

After sun exposure, you can apply a source of vitamin C, green tea, aloe vera.

Curcumin in turmeric helps prevent/fight cancer.