First of all, I have to say that I have not tried this product because it is not suitable for my skin, but I gave it to my mother to try because I was very curious about it. This opinion is based on her experience (mature skin, some pigmentation, lack of firmness).

The main active ingredient is 15% Vitamin C in the form of ascorbic acid, one of the best known active ingredients in cosmetic industry. It also contains fragmented hyaluronic acid, polyphenols and vitamine E (tocopherol), which work together to prevent oxidative processes and to provide elasticity, firmness and luminosity.

It is a shock treatment focused to be used only for 10 days in periods of stress, fatigue, seasonal changes (especially autumn) ... when we notice our tired skin and lack of light. It is one of the products that Vichy Laboratories has recently developed with a very simple formulation, without using "filler" ingredients, since it contains only 11 ingredients. One thing I do not like is that it contains alcohol, that is one of the reasons why it is not indicated for sensitive skin. Keep in mind that vitamin C can cause photosensitization, so it is especially important to use sunscreen during treatment (and always!).

My mom used it for the 10 days recommended as a serum, after cleansing and prior to moisturizer. Since day 1 she noticed her skin more glowy, and on the following days her skin looked more luminous and awake, as if she had slept for hours and hours. She used about 4 drops for the whole face (avoiding contact with eyes). The only thing that she didn't like was the smell, it doesn't contain artificial fragrance, so it is the smell of the natural ingredients, kind of strong. What I didn't like is that after the 10 days of use there was still product remaining (less than half), but the conservation time is only 3 months because of the active ingredients are very unstable. She gave it to her sister so she could use it for a few days, not enough to complete the treatment though. Maybe next time she should use more product on her neck and chest so that the 10 ml are finished in 10 days.

All in all, I find it a really good, powerful shock treatment to use from time to time when the normal routine is not enough to keep the skin awake.