Two weeks before: skip these
- · Direct sun exposure on the treatment area.
- · Self-tanner and spray tan.
- · Tanning beds.
- · Waxing, plucking, threading, epilating, sugaring.
- · Cosmetic procedures on the area (peels, microneedling, resurfacing).
Why this window is two full weeks
Melanin activation from sun exposure lingers. Two weeks is what most skin needs to return to a baseline where laser can be delivered safely.
The week of: skip these
- · Retinoids on the treatment area (topical tretinoin, retinol, adapalene).
- · Chemical exfoliants (glycolic, lactic, salicylic acid).
- · Physical scrubs on the treatment area.
- · Prescription bleaching creams (hydroquinone).
- · Starting any new photosensitizing medication without telling your provider.
The day of: skip these
- · Lotion, oil, or serum on the treatment area.
- · Deodorant (for underarm treatments).
- · Makeup (for facial treatments).
- · Sunscreen applied that morning to the treated area (SPF everywhere else is fine).
- · Perfume or fragrance directly on the treatment area.
Why each one matters
Every item on these lists exists for one of three reasons: it interferes with the laser physically (products on the skin), it changes how your skin responds to the laser (sun exposure, retinoids), or it removes the laser's target entirely (waxing, plucking).
Full prep sequence lives in How to Prepare for Laser Hair Removal. Medication-specific detail lives in Medications to Avoid.
Key takeaways
- · Sun and self-tanner are the biggest 'don'ts' in the two weeks prior.
- · Waxing, plucking, and threading eliminate the laser's target.
- · Retinoids and acids sensitize skin — pause 3–5 days.
- · Day-of skin should be clean and product-free on the treatment area.
- · When in doubt, tell your provider before treatment — never after.