Hydrating your skin involves not only applying moisturizers but also ensuring you're well-hydrated from the inside. So my first recommendation would be water. Here are some options:

1. Cucumber and Mint Infused Water: Blend cucumber slices with fresh mint leaves and water. Strain the mixture and enjoy this refreshing and hydrating drink.
2. Watermelon Cooler: Blend chunks of watermelon with a squeeze of lime juice. Add ice cubes for a refreshing twist.
3. Coconut Water Smoothie: Blend coconut water with frozen berries and a banana. The electrolytes in coconut water can help keep your skin hydrated.
4. Aloe Vera Smoothie: Combine aloe vera gel (from a fresh leaf), cucumber, and a splash of coconut water. Aloe vera is known for its skin-soothing properties.
5. Green Smoothie: Blend spinach, kale, cucumber, celery, and a green apple. The high water content in these greens can promote skin hydration.
6. Pineapple and Papaya Smoothie: Blend pineapple, papaya, and a bit of coconut milk. Both fruits are rich in vitamins and enzymes that benefit your skin.
7. Berry Blast Smoothie: Combine mixed berries (strawberries, blueberries, raspberries) with Greek yogurt and a bit of honey. Berries are packed with antioxidants that can help protect your skin.
8. Citrus Splash: Blend citrus fruits like oranges, grapefruits, and a splash of water. Citrus fruits are high in vitamin C, which is great for skin health.
9. Cucumber and Kiwi Smoothie: Blend cucumber, kiwi, and a handful of spinach with water. Kiwi is a good source of vitamins C and E, which can support skin hydration.
10. Carrot and Ginger Juice: Juice carrots and ginger together. Carrots are rich in beta-carotene, which can promote healthy skin.

Remember to stay hydrated throughout the day by drinking plenty of plain water in addition to these juices and smoothies. Proper hydration is essential for maintaining healthy, radiant skin.