What does the card say about the purpose of the mask? — SUNGIT Hair Mask Intensive Keratin 220ml

According to the manufacturer's description, the intensive mask with keratin and natural oils is intended for damaged hair: it gives the hair back its strength and shine. The card does not name hair types or situations in which it is best to use it.

General information (not a manufacturer's instruction): check the shelf life on the packaging; if an allergic reaction occurs, stop using it.