Exfoliants are skincare products designed to remove dead skin cells from the surface of the skin. They help to promote cell turnover, revealing fresher and healthier skin underneath. Exfoliants can be physical, containing small particles that scrub the skin, or chemical, using acids like alpha hydroxy acids (AHAs) or beta hydroxy acids (BHAs) to dissolve dead skin cells. Regular exfoliation can improve skin texture, unclog pores, and enhance the effectiveness of other skincare products. However, it's important to use exfoliants appropriately, as over-exfoliating can lead to irritation and damage. Always follow up with a good moisturizer to keep the skin hydrated.