Final answer:
Follow-up after a chemical exfoliation or microdermabrasion service should be completed within 48 to 72 hours to assess skin reaction and efficacy of the treatment.
Step-by-step explanation:
After performing a chemical exfoliation or microdermabrasion service, follow-up should be completed within 48 to 72 hours. This timeframe allows the skin to calm down from any immediate redness or sensitivity caused by the treatment. During the follow-up, the professional can assess the skin's reaction to the treatment, check for any signs of adverse reactions, and determine the efficacy of the procedure. The client can also be advised on proper post-procedure skin care, which is crucial for the healing and regeneration process.