Purifying masks are not recommended for sensitive and dry skin types. Indeed, these treatments can have side effects on this type of skin:
Feelings of discomfort;
Redness;
Allergic reactions;
Tightness.
Purifying masks are specifically designed to remove excess sebum, which forms the protective hydrolipidic film of the stratum corneum, preventing dehydration. However, if the mask is too potent or applied too frequently, it can not only remove excess sebum, but also strip away the skin and scalp's natural moisture. As a result, this can leave the skin, hair, and scalp dehydrated and dry. Particularly, dry skin types have a reduced sebum production. Overuse of a purifying mask can remove all the sebum, leading to increased skin dryness.
Furthermore, the application of a mask entirely composed of clay requires a cautious approach: it is crucial that the mask maintains a constant level of moisture and does not dry out completely on the skin, as this could severely dehydrate it. In addition, some purifying masks may include essential oils that possess antibacterial properties useful in combating certain bacteria responsible for the onset of blemishes.
However, they are also known to be irritating for sensitive or reactive skin types. The peppermint oils, oftea tree, cinnamon, eucalyptus and lemon are often present in this type of care and can provoke allergic reactions in some individuals. Similarly, certain fragrances added to purifying masks may contain potentially allergenic substances. For this reason, it is recommended to perform a patch test of the mask on a small area of the body before the first use.