I have used several brands of hyaluronic acid serum and found most to be quite nice as they do a wonderful job of providing hydration to your skin as well as tighten up loose saggy skin around my eyes and mouth, which is wonderful in my opinion. Plus I like that it can go under your moisturizer and makeup products, and your makeup doesn't have that caked on look. I like the Sano Naturals Hyaluronic Acid Serum + the Daily Moisturizing Skin Revitalizer, and to be one honest, i like this product. The part that I like the best about it, is it does not have a perfumed or fragrant smell, honestly, it just has a really fresh scent, but a scent that is very light and not overbearing. I as well love the way my skin looks when I am using this product!