Very good serum, you only need one or two drops and you see results. It absorbs quickly and gives a nice shine and uniformity. I would definitely buy it again.

An excellent serum that does exactly what it promises. The warmth it provides when you rub it on your hands and then on your face is also very pleasant. It doesn't have any particular scent and has a good texture and light feeling on the skin. It is strong enough for skin that is not accustomed to ascorbic acid, so I would not recommend it for beginners. It is preferable for someone to start with milder forms of vitamin C. The only thing that concerns me about this product is its stability, as ascorbic acid is quite unstable and oxidizes immediately with sunlight or heat. However, the packaging is transparent and requires proper storage in a cool and shady place, even in the refrigerator during the summer months. Also, don't worry if the product turns slightly yellow from being transparent. If its smell is not unpleasant yet or its color doesn't resemble caramel, it is still suitable for use. However, it is a product with a short shelf life, about 3 months, despite stating that it can be used for up to 12 months after opening. A minor drawback is its price, which has increased slightly recently. If it were around 15 euros, it would receive 5 stars. Ultimately, with daily use and proper storage, this serum can definitely transform your skin.

Very good vitamin C serum, I believe it really helped my face look more radiant. I keep it in its box and inside the refrigerator to avoid quick oxidation. It has a strange smell (which is why it loses one star), although it is not completely bothersome. I apply a small amount and it covers my face perfectly. I would buy it again.

15/3/23 I am returning to the review after a long period of use. Ultimately, I did not see any difference in my face in terms of radiance and dark spot reduction. The result is more temporary when you apply it, rather than permanent. It has not oxidized yet, the refrigeration helped, but I will not buy it again. I will try something else to see if I notice more difference.