Yes Manuka honey IS great, but I’m not entirely sure if it has vitamin C in it or not. In any case, the two are not related, and you should definitely consume vitamin C on a regular basis. You can do this by consuming citrus fruits such as oranges, grapefruits, lemons and limes, or you can take a vitamin C supplement.
Additionally, you can purchase vitamin C infused serums and lotions which help the skin to remain soft and supple and also prevent wrinkles. Vitamin C is known for having high amount of antioxidants which essentially protects your skin from sun damage and other problems.