I got a sample of this product in a beauty box. Did some research on the brand and the product itself and have I have been using it since.
On the brand: it's a luxury brand with a middle class price tag. It's not cheap, but it's high quality, ecological and cruelty free with special attention to it's ingredients.

On the serum itself: I was sceptical at first, as I had never felt the need to use a serum before and I was afraid it would make my skin oily. But it's not oily at all and it does give you a huge hydration boost without irritating or clogging the skin. I was prompted to use it after an accident which left my face bruised up. After the swelling went down, my skin was overstretched and very dry from the bruising creams I used. I had difficulty getting my skin to settle again and I started using the serum in the hope that it would revitalize my skin and get it back to normalcy. The serum certainly helped in restoring my skin and I just kept using it afterwards because it felt nice.

The serum seeps into the skin very quickly and leaves you with a fresh feeling, soft skin. No residue or sticky feeling. The serum has a nice gel like texture that turns more watery as you rub it in. Almost all the ingredients are organic and/or natural. It contains tripeptides and 4 different deeply moisturizing ingredients.
All in all a nice product despite the price tag (between 47€ and 52€ for 20ml).

This serum has a watery gel-like formula that sinks in the skin almost instantly, leaving the skin hydrated and more plump. It doesn't make skin shiny or greasy, either. This makes it ideal to use in combination with other products, because it layers nicely and makeup applies good onto it.

However I do find it quite expensive (€47,- for 20ml/0.67 fl oz), there's probably similar formulas for less... but if you don't mind that, it's a fine option for a moisturizing serum!
I actually got this serum in a beauty box a while back; I was unfamiliar with the brand but this product convinced me to try some of their others in the future, too!