How often should one perform a deep facial cleansing?

Generally speaking, there is no universal recommendation for how often one should perform deep facial cleansing. Those with oily skin can do it once every 1-2 weeks, those with combination skin every 2-3 weeks, and those with dry or sensitive skin are advised to do it every 3-4 weeks. Detailed explanations are as follows:

For oily skin, the sebaceous glands are active, making it easier for oil, dirt, and dead skin cells to accumulate on the skin surface. If not cleaned timely, this can lead to clogged pores and subsequently cause acne and pimples. Therefore, performing deep cleansing once every 1-2 weeks helps control oil production and keeps pores clear.

Combination skin typically has an oily T-zone and relatively dry cheeks. The T-zone can be treated similarly to oily skin, with deep cleansing approximately every 2 weeks, while the cheeks should be cleansed less frequently to avoid over-cleansing, which can lead to dryness and sensitivity. Overall, combination skin can benefit from deep cleansing every 2-3 weeks.

Dry skin naturally produces less oil and has a relatively fragile skin barrier. Over-cleansing can easily disrupt the skin's moisturizing function, making it even drier and potentially causing itching and redness. Therefore, dry skin only needs deep cleansing every 3-4 weeks. Sensitive skin has a compromised skin barrier function, and frequent deep cleansing may worsen sensitivity symptoms. It should be approached with caution, maintaining a cleansing frequency of every 3-4 weeks, along with using gentle cleansing products.

Environmental factors and seasonal changes can also affect the frequency of deep cleansing. In highly polluted environments or during summer when oil production increases, cleansing frequency can moderately be increased, but care should be taken to avoid damaging the skin through excessive cleansing.