I have been using it for a week as a treatment for post-inflammatory hyperpigmentation (excessive production of melanin after skin inflammation) and it has just started to fade the dark spots, nothing remarkable. However, it has made my skin glow, and the dark circles under my eyes have almost disappeared. It is quite expensive for 30ml, but I believe that if it continues like this for a month, the dark spots will be significantly reduced. I will come back once I see a difference.

Update (6/7/2023): So far, I have purchased 3 packages and have been using it on a daily basis for weeks. I have to say the following: It is excellent for alleviating acne, pimples disappear within 1 or 2 days at most, especially during breakouts due to menstruation (I don't know its effect on chronic hormonal acne).

Its absorption for my dry skin is very good. Using it 2-3 times a day, I saw an immediate difference in the glow of my face, and the dark circles disappeared as long as I used it. During that period, I also did Derma-rolling with 0.50mm needles, and the irritation subsided from the first day, something that no moisturizer has been able to do so far.

However, the reason I bought it in the first place was to calm down my post-inflammatory hyperpigmentation caused by the use of a product against acne (epiduo). Unfortunately, it didn't do much, even with daily use several times a day. I would say that after 1.5 months, it managed to reduce it by about 15% - 20% with intensive use. Considering its price, it is a bit disappointing. However, I will continue to buy it because it generally did a good job, both in moisturizing and overall glow and renewal. If there are any changes regarding its effect on hyperpigmentation, I will come back.