I randomly bought the serum and I don't regret it. It was a pleasant surprise for my combination skin that it absorbs very easily without leaving any greasiness. It has a light citrus scent. It definitely moisturizes, but I can't give an opinion on firming because I don't use it consistently morning and night.
As a negative, I will mention that it is thicker than other serums, resulting in needing a larger quantity to cover the entire face.

I have tried countless face creams, especially pharmaceutical ones... caudalie, avene, la roche pose... all good but none like this one... I have acne and the others, of plant origin, worsen it especially in the summer.... while with this cream you feel deep hydration... it is very good.