Question

Skin Cleansing

What's the difference between physical and chemical exfoliation?

A Answers (2)

  • AMehmet Oz, MD, Cardiology, answered

    Physical exfoliants (scrubs) remove dead cells through friction. Chemical exfoliants (like salicylic acid) remove dead skin cells by dissolving the "glue" that binds them to other cells.

     

  • AStaness Jonekos, Health Education, answered

    There are three different exfoliating methods. 

    Manual (physical) exfoliation is moved across your skin’s surface using your fingers or buff puff. You are removing the dead cells by scraping off the top surface with physical friction. Many manufacturers use natural products such as seeds, apricot pits, or crushed oyster shells as the ingredient that causing friction. Some products use round beads or poly spheres that can be easier on the skin.

    Chemical exfoliates are a topical bio engineered ingredient that can dissolve the glue like substance that holds the dead cells together. Most chemical exfoliates use either Alpha Hydroxy Acids or Beta Hydroxy Acids. This type of exfoliation is applied to the skin then rinsed off. You do not “scrub” to enjoy the benefits. The “chemical” does the work.

    Enzymes work by dissolving the dead tissue. The enzymes are molecules that catalyze chemical reactions of other substances. The product is applied then washed off. You do not manually “scrub” your skin. The enzyme does the work for you.

    Every 28 days skin renews itself leaving your skin with a fresh layer of baby cells. As we get older this shedding process, called desquamation, slows down leaving us with fine lines, dry areas and an uneven skin texture.

    Exfoliation stimulates new cell growth by removing the cells your body is no longer shedding. It helps your body with the desquamation process by stripping the dead epidermal cells on the outer surface of your skin and exposing a fresher layer of living cells. It takes a few days for a noticeable amount of dead cells to accumulate. It is best to exfoliate once or twice a week. You don’t want to irritate your skin or remove healthy living cells by doing it daily.

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