How often should I exfoliate?
The answer to this question will vary based upon a person's individual skin type. "Some people can only handle exfoliating once a week while others need to every day," explains Dr. Engelman. "I would suggest to start with once or twice a week and increase in frequency." Based on your skin type, a dermatologist will recommend a physical or chemical exfoliant or a mixture of both. For example, with oily skin, you'll want to be careful not to strip the skin of natural oils and cause overproduction, yet work to wash away sebum build up. According to Dr. Engelman, chemical exfoliants are the best option for ridding the skin of dirt and grime while not causing irritation. She also recommends looking for cleansers with alpha hydroxy acids (AHAs), such as glycolic, salicylic and lactic acids. "These work to improve the skin tone and texture by weakening the lipids that bond the top layer together and revealing the healthy cells underneath," she says. "They penetrate deep into the skin, unclog pores and prevent buildup that can lead to acne and inflammation."
For those with sensitive skin, she recommends using a brush or washcloth with your normal cleanser. "This makes it easy to control the abrasiveness based on the pressure you use, and you won't have to worry about any ingredients you might be allergic to." Be wary of excessive exfoliation, however, which can break down the skin barrier that protects against harmful bacteria.
12 Questions to Ask Your Dermatologist at Your Next Appointment, Source:https://www.besthealthmag.ca/best-looks/skin/ask-your-dermatologist/