I had a 2 layer 10% TCA chemical performed on my face. It took me a week to fully peel.
There are many variables that affect the healing time. This can include the amount of sun damage present, the relative dryness.oiliness of the skin, how aggressively the peel is applied, peel strength etc. Repeat peels often take similar periods of time to heal (7-10 days), but can sometimes be quicker depending upon the initial peel results. Best regards.