Praise be to Allah.
It is permissible for a woman to use creams or natural materials as a face mask in order to cleanse and beautify the skin, so long as there is no extravagance involved. This is what we stated in the answer to question no. 108638, in which we said: There is nothing wrong with using honey on the face to remove freckles, soften the skin and so on, so long as there is no extravagance involved..
Similarly, in the answer to question no. 84903, it says: There is nothing wrong with using fruits and vegetables to treat some skin problems, so long as that does not involve extravagance.
We have not given any answer previously which states that these face masks are haraam, unless what you mean is facial peeling for no necessary reason, as in the answer to question no. 34215.
And Allah knows best.