I have been using it very frequently in recent years and I am very satisfied. Although its texture resembles a cream, it is not. It is a serum and should be used before and under the cream. I have not felt any film sensation as I read in other reviews. It gives shine and freshness to the skin and when used in combination with the retinol of the same company (night retinol, vitamin C in the morning), the result is impressive within 2-3 weeks. I recommend it.

Very good for hydration whenever you need it. They are quite oily and are not absorbed quickly, but they leave a shiny and nice feeling on the face. If you apply it during the day and go outside, your face shines a lot as if you have applied oil, so if you don't like this, apply it when you are at home or even better at night, like I do.

Four stars because it is very greasy.
Otherwise, when I first started and finished the 7-day treatment, a friend of mine said to me, "What have you done to make your face glow?!" So, does it work?
Apart from that, it really gives freshness to the skin, whitens it, and generally makes it more radiant. I use it in the morning or evening, depending on what I want, like before applying sunscreen because I have read that the properties of vitamin C work even better that way.
It is never missing from my facial care kit.

Fantastic product really. I use it for about a month. So when I use it, my skin looks whiter, brighter, and younger. I apply it before my moisturizer. One ampoule is barely enough for the face, and if I want to apply it on my neck, I have to open a second one. My mother had similar results on her skin. Very good product, we will continue using it

I bought the package with the 7 pieces and the serum was very good. The next day, my skin did have a glowing appearance, I can't explain it, but there was a difference. It doesn't absorb easily, it's like a film on the skin, so it's perfect for night time.
However, after finishing the 7 pieces, I bought the package with the larger quantity in the jar. I suspect it's old, I mean it's not freshly made somehow, because the small "vials" are harder than the previous ones, and the serum separates a bit and is not uniform. It's also not enough for the whole face, like before, and MOST IMPORTANTLY, I don't see any difference, even though I have used almost half of the jar.
I am confused about the product. Maybe its properties diminish over time...

It is very good, it feels a bit strong at first and it pinches. I bought it twice, but I noticed that it creates pores, not black ones but somewhat orange on my skin that I didn't have before, so I stopped using it.

Excellent high-concentration vitamin C does what it promises very quickly...
One of the best choices on the market
Additionally, it does not oxidize and is flawless

Due to the lack of a serum that I usually buy, I ended up purchasing this product. I chose it mainly because of the positive reviews... It sits on the skin, I can't tell if it gets absorbed. When I have used it at night and try to wash my face in the morning, it doesn't rinse off, it stays on the skin like a film. Lastly, it irritates my skin... For me, it's a waste of money

Very good product. I noticed a difference from the first day. It also has a very good price. I am glad that I discovered it.

It does not have the form of a serum but rather that of a more liquid cream. Unfortunately, it did not suit me because it is difficult to absorb and leaves an oily residue. As a result, I noticed only a slight difference. Perhaps it may be more suitable for other skin types. I will not purchase it again.

The best by far! I have tried many, even more expensive ones, and I ended up exclusively with this one and I wouldn't change it for anything. You see the difference from the very next day!

Very nice product, I started seeing various results within two days, brighter face, smoother skin, applies very nicely, I don't know what everyone understands, the package contains 7 single doses, it doesn't say that you should only use it for 7 or 14 days anywhere, it says that after 14 days you start seeing even better results, now depending on age and skin, we use it continuously or at intervals, I like its composition, it's like a cream that spreads easily. Very good price.

Impeccable ampoules, I saw an immediate difference in my face in terms of brightness and smoothness. Very good concentration of vitamin C in such a small ampoule. Always use sunscreen though.

It helped quite a bit with some pimples and provides radiance... It might be better to use it 2 weeks per month whenever the skin needs it or in alternation with the company's retinol. For the money it costs, it does a very good job!

Very good product. After days of use, the difference is noticeable even by others with shine and rejuvenation!

After more than 1 month, I have a more rounded opinion but I am also more concerned. Doing the 14-day treatment, I REALLY saw a tremendous difference. My skin was glowing. After the 14th day, I suppose that my skin not only didn't need it anymore but there was no spot to apply it without causing breakouts. I used it again after a month in only one spot just to see the reaction and it was fine. So, people should know that it is perfect IF your skin needs it and only for 14 days. And always use a moisturizing or regenerating cream afterwards.

It is not easily absorbed and does not have the texture of a cream. It is more watery than a serum and it caused me itching. Be careful to always use sunscreen as it may cause breakouts.

No positive result and it is quite greasy (contains silicone) so it creates pimples for me.

I made it as a 14-day treatment with two sachets and applied it at night. Nice result. It leaves a nice glow on the skin and is very economical.