It is not easily absorbed, it leaves residue on the face. The part with the metal on the bottle, when in contact with the serum, becomes like rust after a few days. I threw it away.

It is my preferred vitamin C compared to others I have tried. Light, pleasant texture, absorbs well and leaves the skin velvety. Of course, good hydration and sunscreen afterwards!

It is only for the morning with your sunscreen. Its smell is bad, like rust! It leaves yellow stains if you use it at night on your pillow, sheets, etc. I would not buy it again.

The only reason I give 4 stars is because personally it felt a bit heavy for me. Its texture is quite thick, so when I apply moisturizer and sunscreen on top, it peels off. I don't wear makeup, but when I tried to apply a lightweight foundation, it was a disaster...

Other than that, it is absorbed relatively quickly by the skin and gives a glow. It does not cause irritation.

As a first impression, it seems very good, it absorbs immediately, it's like an oil since it contains vitamin E. The face softens and doesn't crack. It doesn't sting me like other serums I've used from well-known brands. It indeed has a color like rust that many consider to be oxidation, but the packaging states that the composition may change color due to oxidation, which does not affect the effectiveness of the product. I will put it in the fridge for better or worse.

I bought it as a more affordable option for vitamin C serum, it spreads very easily, I like its scent, it is much more subtle than another one I have tried, it hasn't caused me any irritation. And the applicator-tube is very good, it releases the serum nicely

It is the best there is in face terms, it doesn't stick, it doesn't smell, it leaves perfect skin, I have already bought it 2 times

after using a lower percentage vitamin c serum I decided to try this. it's great. I used it on slightly damp skin, then used hyaluronic acid serum, face moisturizer then sunscreen..

This is my first time using vitamin C; I've had it for a month. My skin is oily with a tendency for acne and redness. I can say that my complexion has noticeably improved; I will see it further in time, of course. I use it only in the morning, as recommended, after cleansing with the same line. For hours, I don't experience any oiliness, and I don't use a moisturizer, only sunscreen afterward (it dries me out quite a bit; for someone with dry skin, a moisturizer shouldn't be skipped). I have the feeling that areas with blemishes and sebum are better, but this may be due to various products.

It is the best value for money vitamin C if you buy it on sale, which comes close to 15 euros. It has pure ascorbic acid and gives radiance to the skin. I take it again and again.

While I have used other vitamin C products, this particular one caused me redness and small pimples, which went away when I stopped using it. Now I am trying it only in the morning over some toner, and it seems to react better. If you have sensitive skin, this might be the only way; otherwise, you might prefer another one.