Exfoliation removes dead skin cells that build up on the surface, leaving skin brighter and helping other products absorb better. But it is a double-edged tool: helpful in moderation, damaging when overdone.
Two types of exfoliation
Physical exfoliation uses granules or tools to scrub the skin's surface, suitable for resilient, non-sensitive skin when done gently. Chemical exfoliation, using acids like glycolic, lactic, or salicylic acid, is usually gentler and more consistent in results, and suits most skin types when the right strength is chosen.
How often should you exfoliate?
- Sensitive skin: once a week at most.
- Normal or combination skin: two to three times a week.
- Resilient oily skin: up to three or four times a week, depending on tolerance.
Signs of over-exfoliation
Persistent redness, a stinging feeling with any product, or increased sun sensitivity are all signs your skin barrier has been damaged by too much exfoliation. If this happens, stop completely for a few weeks and focus only on moisturizing until skin recovers, and see a dermatologist if it does not improve.