Preparing for a chemical peel starts about one to two weeks before your appointment, and the steps you take during that window directly affect how well the peel works and how smoothly your skin heals. Most of the preparation involves stripping back your skincare routine, protecting your skin from the sun, and making sure your provider knows your full medical and medication history.
Simplify Your Skincare 5 to 7 Days Out
The most important prep step is pulling back on active ingredients that make your skin more sensitive. At least five to seven days before your peel, stop using products that contain retinoids (tretinoin, adapalene, retinol), glycolic acid, salicylic acid, benzoyl peroxide, and vitamin C serums. These ingredients thin the outer layer of skin or speed up cell turnover, which sounds like it would help a peel but actually increases the risk of irritation, uneven penetration, and prolonged redness.
During this pre-peel window, keep your routine simple: a gentle cleanser, a basic moisturizer, and sunscreen. That’s it. If you’re unsure whether a product counts as “active,” check the label for any acid, retinoid, or exfoliating ingredient and set it aside until your provider clears you to resume.
Start Sun Protection Early
Freshly peeled skin is far more vulnerable to UV damage, but your skin’s sun exposure before the peel matters too. Sunburned or heavily tanned skin reacts unpredictably to chemical peels and is more likely to develop uneven pigmentation afterward. For at least two weeks before your appointment, wear a broad-spectrum SPF 30 or higher daily, even on overcast days or if you work indoors near windows.
If you realize you’ve gotten significant sun exposure in the days leading up to your peel, let your provider know. They may recommend rescheduling rather than treating compromised skin.
Extra Steps for Darker Skin Tones
If you have a medium to deep skin tone or a history of post-inflammatory hyperpigmentation (those dark marks that linger after a breakout or injury), your provider may ask you to start a brightening routine several weeks before the peel. The goal is to calm the pigment-producing cells in your skin so they’re less likely to overreact to the peel itself.
Common ingredients used for this include arbutin (a gentler relative of hydroquinone), niacinamide, and vitamin C. These all work by slowing down melanin production through slightly different pathways. Niacinamide has the added benefit of reducing inflammation, which makes it especially useful in pre-peel prep. Your provider will tell you when to start and, importantly, when to stop these products before the peel day, since vitamin C is typically discontinued in that final week.
Stop Waxing and Other Hair Removal
Avoid facial waxing, electrolysis, and depilatory creams for at least one week before your treatment. These methods strip or irritate the skin’s surface, leaving it raw in a way that compounds the effects of a chemical peel. Shaving with a razor is generally fine because it doesn’t remove skin cells the way waxing does, but check with your provider if you’re unsure.
Tell Your Provider About Cold Sores
This is one of the most overlooked parts of peel preparation. A chemical peel, especially one applied around the mouth, can reactivate the herpes simplex virus and trigger a cold sore outbreak. Research has shown that even people who don’t recall ever having a cold sore can develop a post-peel outbreak, because many people carry the virus without knowing it.
If you have any history of cold sores, your provider will likely prescribe an antiviral medication to start taking before the procedure. In clinical studies, patients who began antiviral prophylaxis before their peel had no further outbreaks, while those who skipped it were at real risk. Be upfront about your history, even if your last cold sore was years ago. This is a straightforward preventive step that avoids a painful and potentially scarring complication.
Medications That Require a Waiting Period
If you’ve recently taken isotretinoin (commonly known by the former brand name Accutane), the traditional recommendation is to wait six months after finishing the medication before having a chemical peel. Isotretinoin thins the skin and changes how it heals, which historically raised concerns about scarring from peels and other resurfacing procedures.
That said, more recent clinical reviews have found that superficial and medium-depth peels appear to be safe in patients who are on or have recently finished isotretinoin. A published task force review concluded that these procedures can be performed without the full six-month wait. Still, this is a conversation to have with your provider, who can assess your skin’s current condition and decide what’s appropriate for your specific peel depth.
Beyond isotretinoin, let your provider know about any prescription topicals, oral antibiotics, blood thinners, or immunosuppressive medications you’re taking. Some of these affect wound healing or skin sensitivity in ways that change how aggressively a peel can be applied.
What to Do the Day Before and Day Of
The night before your peel, wash your face with a gentle cleanser and skip everything else. No serums, no moisturizer, no overnight masks. You want your skin clean and free of any product residue that could interfere with the peel solution’s absorption.
On the morning of your appointment, arrive with a clean face. Don’t apply sunscreen, makeup, or moisturizer unless your provider specifically tells you to. If you normally wear contacts, consider switching to glasses for the day, since your eyes may water during the procedure and you’ll want to avoid touching your face afterward. Wear a button-down shirt or zip-up top so you don’t have to pull anything over your face when you change.
Eat a normal meal beforehand. Chemical peels aren’t performed under general anesthesia, so there’s no fasting requirement, but having food in your stomach can help if the discomfort makes you feel lightheaded. Bring a hat and sunglasses for the trip home, because your skin will be freshly treated and immediately sensitive to sunlight. If your peel is deeper than a light or “lunchtime” peel, you may also want to clear your schedule for the rest of the day, since redness and mild swelling are normal in the first few hours.
Your Pre-Peel Consultation
A good provider will schedule a consultation before the peel itself, not just hand you a consent form on treatment day. This appointment is where they evaluate your skin type, discuss your goals, review your medication list, and determine the right peel depth for your concerns. If you have a history of allergic reactions to skincare products or adhesives, mention it. Your provider may recommend a small test application on a discreet area of skin to see how you react before committing to a full-face treatment.
Come to this consultation with a clear picture of your current skincare routine, including product names if possible. Knowing exactly what you’ve been putting on your skin helps your provider give you a precise timeline for what to stop and when. If you’ve had previous peels, laser treatments, or any cosmetic procedures, share those details too, since they affect how your skin will respond.