Proper hydration is key to maintaining healthy, plump, and firm skin. When your cells are hydrated, they are able to function optimally, including detoxifying the skin and producing collagen. Drinking enough water is a great way to ensure your cells are hydrated. Watermelon is another hydrating option that’s full of antioxidants like lycopene and nourishing minerals. It helps fight against the effects of photoaging from sun exposure and combats free radicals that accelerate the appearance of fine lines and wrinkles. Additionally, when applied topically, watermelon serves as an excellent moisturizer.