Use:

in the evening, massage into cleansed and dried skin, avoiding the eye and mouth area. Depending on your own preferences and skin reaction, you can use the serum daily or several times a week. During use and a week after use, it is advisable to protect the skin with a high UV filter when staying in the sun.

Caution: Do not use on damaged skin, during pregnancy and breastfeeding. Immediately after application, a slight burning sensation may occur, which is a natural reaction of the skin to the action of acids. If the burning sensation is severe, does not go away even 2-3 minutes after application, or the skin remains reddened/irritated after application, rinse the skin with plenty of water and stop using the serum.