I became interested in health functional foods after seeing my tired reflection in the mirror. Do you have any recommendations?

Today, on my way home from work, I looked at my face under the lights of a department store and my heart sank at how much elasticity it had lost. No matter how many good cosmetics I tried, I couldn't seem to get rid of the dullness. Then, a colleague told me that the first thing I absolutely needed was a health functional food. In the past, these words sounded like a distant future, but now, seeing myself in the mirror feels unfamiliar, so I'm thinking about getting some health functional food before it's too late. Waking up every morning feels daunting, and my complexion darkens in the afternoon. I feel like I need to start taking care of myself from the inside out. So, I'm making the bold decision to invest in my health. What health functional food should I choose? Has anyone experienced a noticeable brighter complexion or less fatigue after taking them consistently? Any advice would be incredibly helpful.