Packed with a plethora of vitamins and minerals which include iron, Vitamin E, magnesium, Vitamin A, fibre, plant protein and Vitamin C, spinach can help give your skin the glow it needs. You'll need 3 cups of spinach leaves, 1 cup of chilled milk (your choice - regular, almond, soy etc), 1 banana and half a cup of frozen berries (your choice). Put these ingredients in your blender and blend away! Strain the mixture and enjoy your smoothie.