You not only get clearer skin, but the nutrients in green smoothies also help boost production of collagen, creating firmer, younger looking skin. Apples, strawberries and oranges are great choices to add to your smoothie for this. Do you ever buy those super expensive anti-aging lotions with CoQ10? Try a green smoothie instead! It’s cheaper and you know exactly what is in it. Q10 is a naturally occurring coenzyme that helps your skin stay firm and smooth. As you age, the Q10 in your body decreases. Green smoothies are a great source of these anti-aging enzymes.