I used two sample packets. I wasn't sure about the immediate effect, but the feel was good, so I gave it a star. It's a serum, but it has a soft, moisturizing emulsion-like texture and spreads easily. It didn't feel sticky after use, and the freshness continued. It also has no scent, so it doesn't interfere with other cosmetics, which I thought would make it easy to incorporate. It's quite expensive, but I'm sure there are other options, so I'm holding off on purchasing it. However, it seems to suit my skin, so I think it'll be on my list of future options.