Is doing one face mask a day really good?

It cannot be considered unconditionally good. It is best to use a face mask that suits your skin type.

For oily skin, it is recommended to be cautious, as providing too much nourishment with a daily face mask can actually worsen the condition. Oily skin types need to remove sebum more than they need to moisturize. Therefore, using moisturizing masks too frequently can be a factor in exacerbating acne.

If you have dry skin, it is not a bad idea to use a moisturizing face mask every day.

I am against doing a face mask every day just because the saying goes "one mask a day." For example, sebum production increases significantly before your period, so it is better not to use a mask at all during this time.