I have mature, dry, sensitive skin, and over the past year I have been trying to be more consistent about taking care of it and slowing down the visible signs of aging, even just a little.I have been trying quite a few products, so when I saw this Clinical Resolution Serum, I was interested in the ingredient list. Sodium hyaluronate is always a plus for hydration, and panthenol is great for helping with dryness and supporting the skin barrier. Acetyl hexapeptides were new to me, and are supposed to help improve the look of fine lines over time. I also like that this product is cruelty-free and made in the USA.I have been using it morning and night for about a week, applying two to three drops and gently rubbing it into my skin. One thing to note is that it is meant to be used on damp skin, which is a little different from some other serums. At night, I apply it right after washing, and in the morning I use it after rinsing my face.The serum has no noticeable scent, which I appreciate, and I have had no irritation or sensitivity issues. It absorbs quickly and does not leave any sticky or greasy residue.So far, my skin feels nicely hydrated and looks a bit more refreshed after applying it, especially when followed with a moisturizer. I have not noticed much change in fine lines yet, but after only a week, I would not expect to.Overall, this feels like a well-formulated, higher-end serum that is pleasant to use and gentle on my skin. The price is on the higher side, so I would want to see more noticeable results over time, but I am interested to keep using it and see how it performs.