9. How Often Can I Get Facial? Adults with normal, healthy skin should have a facial every 30 days. CRF - Cell Renewal Factor (or cell turnover rate) is what keeps cells from building up. This process slows down with age. The average rate of cell turnover for babies is 14 days; teenagers: 21-28 days; middle-age people: 28-42 days; 50 and older: 42-84 days.