This is my first time using Clarins products so I have no idea what to expect as I don't know anything about their products. I love the packaging and the pump means one doesn't use more than they need to even though it doesn't say how much you need to pump out but after using it for 2 days I realised 3 pumps is enough for both my face and neck. This serum has a scent. It is not over bearing so if you don't like scented face products, don't be put off because it disappears very quickly. I absolutely love how quickly the serum is absorbed and it moisturizes but does not leave your face looking oily. That's a major plus. As for the brightening aspect, I guess I will have to use it a little longer to see noticeable results.