Depends on the peel
Not all chemical peel agents or formulations of such are the same. Peels are divided as very superficial, superficial, medium and deep. Very superficial peels such as retinoids (Retin-A) or glycolic acid 5-10% can be used daily and at times can be found in OTC formulations such as Neostrata or Glytone cleansers.
Superficial peels such as salicylic acid and the higher concentration glycolics are usually administered every 4-6 weeks. Medium peels such as TCA 30 + Jessner's can be given every...