I'm not feeling as well as I used to these days, so I'm thinking about buying some health functional foods.

This weekend, I went to a cafe with a friend with really pretty lighting, and I was shocked by how dull my face looked in the mirror. I used to have clear skin even after staying up all night, but now it shows even with the slightest effort. I feel like basic cosmetics alone aren't enough, so I'm trying to take care of my skin from the inside out. I'm having trouble deciding which health supplements to take. I searched the internet, and there were so many options, it seems like finding the right one for my constitution is harder than I thought. I'm especially interested in boosting my skin elasticity and vitamin supplements. Do you have any health supplements you trust? If you know of any products that are easy for beginners to take but still provide vitality, please share them. What do you usually take?