Priming the skin for several weeks beforehand with a topical retinoid (i.e Retin-A,  tretinoin, tazorac, adapalene, etc.) is advisable. However, you must stop the retinoid 5  days prior to the peel. Patients with darker skin types should also use a bleaching cream for 2 weeks prior to the peel. Oral Valtrex (to prevent herpes infection) is started  one day prior to the peel and should be taken one week afterwards. Direct sun  exposure should be avoided 7 days before the peel and 2 weeks afterwards.