AHC Serum

It is a cosmetic product with a very watery texture, similar to a needle shot. First of all, the brand is trustworthy, and when you apply it, it stings just like a needle shot product throughout the night.
I didn't know this, but after looking it up, I found out you really need to apply sunscreen after using this. It feels nice to apply because it's pink. Of course, it isn't pink once applied. It absorbs immediately. I've been using it consistently, but if you are sensitive to stinging sensations, I think you should avoid this one. Personally, I actually liked the stinging because it felt like it was working on my skin. At first, I was a bit unsure if it was helping with pore care, but after about three weeks of use, I could see a difference in my skin texture. I think I need to keep using it consistently from now on, haha.