Antiseborrhoeic

Ingredients with the function of an antiseborrheic agent help reduce the manifestations of seborrhea, a condition in which the skin produces too much sebum. Excess sebum is more often noticeable on the scalp, face, and in areas with active sebaceous glands; it can enhance greasy shine, a feeling of "dirty" skin, and a tendency to flaking and dandruff. According to DermNet, seborrheic dermatitis and dandruff are especially common in areas with high sebum production, and excess sebum is directly related to seborrhea. (dermnetnz.org) In cosmetics, such components are usually needed not to change the texture of the formula, but to care for the skin and scalp.: they help to make them visually fresher, less greasy and more comfortable.

Most often, such substances work in several directions at once.: They regulate sebum secretion, reduce oiliness at the roots of the hair, and help reduce the severity of peeling and discomfort. Therefore, they can be found in anti-dandruff shampoos, cleansers for oily and problematic skin, as well as in lotions and serums for the scalp. Typical examples are Zinc PCA and Selenium Sulfide. Niacinamide and zinc compounds are known for their ability to affect sebum secretion, and selenium sulfide is used in dandruff and seborrheic dermatitis control products, helping to reduce itching and peeling. (paulaschoice.com)

It is important to understand that such ingredients should not over—dry the skin: a good anti-seborrheic effect is not "degreasing to a creak", but a more balanced condition of the skin and hair. As a result, the scalp stays clean longer, the hair loses less volume at the roots, and the greasy shine on the face may decrease. If the product contains active anti-seborrheic components in noticeable concentrations, it is better to select it taking into account the sensitivity of the skin, because some substances, such as selenium sulfide, can irritate the skin if used improperly. (mayoclinic.org )