What treatment softens sebum deposits and blackheads to prepare the skin for extractions?

The treatment that softens sebum deposits and blackheads to prepare the skin for extractions is desincrustation. This process involves the use of alkaline substances that help to break down and emulsify oil, making it easier to remove clogged pores and blackheads. It typically involves applying a product that increases the skin's pH, which helps to soften the sebum deposits, allowing for a more effective extraction process during facial treatments.

Other methods listed, while beneficial for skin health, serve different purposes. Exfoliation removes dead skin cells from the surface, improving skin texture and allowing for better product penetration but does not specifically target the softening of sebum. Microdermabrasion is a mechanical exfoliation technique that helps to remove the outer layer of dead skin cells and can improve skin texture but does not specifically prepare the skin for extractions like desincrustation does. Facial masks can provide various benefits such as hydration or healing, but they do not effectively soften sebum deposits in the same way as desincrustation treatments.