Citrus

Citrus is an incredible source of vitamin C, which boasts plenty of important health benefits. And, it`s especially helpful for hair growth as it protects and maintains collagen stores, which as our experts told us, is key for hair growth. "In addition to being necessary for collagen production, vitamin C is also a potent antioxidant, which is necessary to fight off free radicals," says St. Surin-Lord. "Vitamin C also enhances iron absorption, and iron is important in maintaining hair health as it is a co-factor for DNA and it delivers oxygen to tissues."