Would it be good to take health functional foods to maintain skin condition during the seasonal change?

Yesterday, on my way home from work, I looked in the mirror under the department store lights and was shocked. I hadn't slept much because of the workload, but my face looked dull and lifeless. Even with expensive essences, it only lasted for a moment, and I realized I needed more fundamental care. So, I'm thinking about starting an inner beauty routine, but what health functional foods do you prefer? I searched the internet, and there were so many options that I couldn't even begin to figure out which ingredients would be best for my skin type. I used to think taking health functional foods was a hassle, but now I realize they're not an option, but a necessity. I'm curious to know what health functional foods you regularly take to maintain your skin. Do you have any recommendations that have directly improved skin tone or elasticity?