Before a BBL (BroadBand Light) laser treatment, you need to avoid sun exposure, stop several common skincare products, and disclose any medications that make your skin sensitive to light. Getting any of these wrong can lead to burns, dark patches, or poor results. Here’s a detailed breakdown of what to stop, pause, or skip before your appointment.
Avoid Sun Exposure for 4 Weeks
This is the single most important rule. You need to stay out of unprotected sun for a full four weeks before treatment. That includes tanning beds, self-tanning lotions and sprays, and extended time outdoors without sunscreen. BBL works by targeting pigment in the skin, so if you have a tan (real or fake), the laser can’t distinguish between the pigment you want treated and the pigment from your tan. The result can be burns, blistering, or lasting discoloration.
Wear broad-spectrum sunscreen daily during this window and use physical sun protection like hats and shade. If you’ve recently traveled somewhere sunny or spent time at the beach, let your provider know so they can assess whether your skin has had enough time to return to its baseline tone.
Stop Retinoids and Prescription Retinols
Retinoids thin the outer layer of your skin and speed up cell turnover, which sounds great for anti-aging but makes your skin far more vulnerable to laser energy. The timeline depends on what you’re using:
- Over-the-counter retinol products (retinol, retinal, retinoid esters): Stop 5 to 7 days before your appointment.
- Prescription-strength retinoids (tretinoin, tazarotene, adapalene): Stop 10 to 14 days before your appointment.
- Isotretinoin (formerly sold as Accutane): This is in a category of its own. Sciton, the company that manufactures the BBL device, instructs patients to inform their clinician if they’ve taken isotretinoin within the last six months. Most providers will not treat you during that window at all.
Pause Chemical Exfoliants and Acids
Any product that exfoliates, peels, or increases skin sensitivity needs to be shelved for at least 5 to 7 days before treatment. The list is longer than most people expect:
- Alpha hydroxy acids (AHAs) like glycolic acid and lactic acid
- Beta hydroxy acids (BHAs) like salicylic acid
- Benzoyl peroxide acne treatments
- Hydroquinone (a skin-lightening ingredient)
- Topical antibiotics
- Exfoliating masks and scrubs
Basically, if a product makes your skin tingle, peel, or feel “active,” stop using it. Switch to a gentle cleanser and a simple moisturizer in the week leading up to your session.
Skip Waxing, Peels, and Dermaplaning
Any procedure that disrupts your skin’s surface should be avoided for at least one week before BBL. That includes waxing, dermaplaning, superficial chemical peels, and threading in the treatment area. These create micro-injuries or strip away protective layers of skin, leaving you more prone to irritation or burns from the laser. Shaving is generally fine since it doesn’t remove skin cells the way these other methods do, but confirm with your provider.
Disclose Photosensitizing Medications
A surprisingly large number of common medications make your skin more reactive to light. If you’re taking any of these, your provider needs to know before treatment. Photosensitizing drugs can cause abnormal darkening, loss of pigmentation, or inflammatory reactions when combined with BBL energy.
Some of the most common categories include:
- Antibiotics: Doxycycline, tetracycline, ciprofloxacin, minocycline, and most sulfa drugs (like Bactrim)
- Anti-inflammatory painkillers: Naproxen, piroxicam, indomethacin, diclofenac, and several other NSAIDs
- Blood pressure medications: Certain calcium channel blockers, beta blockers like propranolol, and some diuretics including hydrochlorothiazide and furosemide
- Antidepressants: Several tricyclic antidepressants and some MAO inhibitors
- Diabetes medications: Certain older oral blood sugar drugs
- Herbal supplements: St. John’s Wort is a well-known photosensitizer
- Fragrances and oils: Bergamot oil and oils of lime, citron, lavender, and sandalwood can also increase light sensitivity
Don’t stop any prescription medication on your own. Instead, bring a complete medication list to your consultation so your provider can determine whether treatment is safe or needs to be postponed.
Watch for Supplements That Increase Bruising
BBL doesn’t typically cause significant bruising, but vascular treatments (like targeting broken capillaries or redness) carry more risk. To minimize bruising, avoid blood-thinning supplements and medications for at least a week before treatment, and ideally two weeks. Common culprits include:
- Fish oil and omega-3 supplements
- Vitamin E in high doses
- Aspirin and ibuprofen (Advil, Motrin)
- Herbal supplements like ginkgo biloba, garlic extract, and ginger in supplement form
- Bromelain (pineapple enzyme), which despite being marketed as an anti-bruising remedy, actually inhibits platelet function and can increase bruising
- Alcohol, which thins the blood and should be avoided in the days leading up to treatment
Wait After Botox or Fillers
If you’ve recently had neurotoxin injections (like Botox or Dysport) or dermal fillers, wait at least two weeks before scheduling a BBL session. The heat from the laser could potentially compromise how injectables settle or perform. Two weeks gives fillers enough time to integrate into the tissue and neurotoxins enough time to bind fully. If you’re planning both treatments, discuss sequencing with your provider so you can space them appropriately.
Tell Your Provider About Cold Sore History
If you’ve ever had a cold sore, even once, BBL on or near your face can trigger a reactivation. The herpes simplex virus lives dormant in nerve cells, and laser energy can wake it up. Providers typically prescribe a preventive antiviral medication to start two days before your treatment and continue for about a week afterward. This is standard practice, not a sign that treatment is risky for you. Just make sure to mention your history during your consultation so the prescription is ready in time.
Simplify Your Routine the Week Before
The easiest way to think about pre-BBL prep is this: strip your skincare routine down to the basics starting one week out. Gentle cleanser, simple moisturizer, broad-spectrum sunscreen. No actives, no exfoliants, no treatments. Your skin should arrive to your appointment calm, unirritiated, and at its natural color. That gives your provider the clearest canvas to work with and you the safest, most effective results.