A very good product, although I advise you to use it with it and apply it slowly on the skin.
I have been using it for several weeks, using it once a week at night, and I wake up noticing a big difference. It smoothes the skin amazingly, and pimples and dark scars disappear overnight. Small wrinkles are also less visible.
The serum consists of 20% AHA + PHA acid, but still contains ingredients such as cotton water, aloe vera juice, birch sap to moisturize the skin.
I will definitely consider buying another package.