Light-based hair removal delivers heat into the follicle, and the skin around it spends the next while more reactive than usual. That is the reason sun matters so much on either side of an appointment. I do not perform laser resurfacing, and this article is about hair removal on our intense pulsed light system.
Photo-damaged skin develops the scaly, patchy lesions called actinic keratoses, which Li Pomi and colleagues describe in Dermatology and Therapy in 2026 as an early stage of keratinocyte carcinogenesis driven by cumulative ultraviolet damage. Worth knowing if you have darker skin: Leybengrub and colleagues report in Cureus in 2026 that skin cancer incidence is lower in dark skin while mortality is higher, most likely from late diagnosis.
There is no date after which sun stops mattering. Vaidya, Hohman and Kumar put it plainly in the StatPearls review of laser hair removal, updated in 2026: strict sun protection and sunscreen after treatment are a must. Lee and colleagues, reviewing post-procedure sunscreen in Life in 2025, found that starting broad-spectrum protection early improves recovery and reduces inflammation, with zinc oxide and titanium dioxide formulations performing best. Skin settles over a few weeks. Your sun habits should not.
Laser Treatment During the Summer
Is treatment safe during the summer? Yes, with conditions that actually have to be met. Vaidya, Hohman and Kumar note in StatPearls that sunscreen is often started four to six weeks ahead of a session on exposed areas, and treating tanned or recently sun-exposed skin is on their list of preventable causes of injury. Follow the pre and post treatment instructions and summer is workable. Skip them and the season will find you out, as the case below shows.
I typically ask for four to six weeks out of direct sun if you have not been wearing a hat and sunscreen and there is a noticeable tan on the area being treated. That interval is not something I invented. Vaidya, Hohman and Kumar give the same four to six weeks for pre-treatment sunscreen in the StatPearls review of laser hair removal, updated in 2026.
Tips When Getting Laser Treatment During the Summer
If you do choose to have laser treatment during the summer, there are a few tips you can take to ensure you achieve the results you’re looking for and avoid the risk of sun damage. Some of these tips include:
Apply Sunscreen Regularly
Use SPF 30 or higher with broad-spectrum UVA and UVB protection. If your skin is Fitzpatrick IV to VI, look for iron oxides on the label as well. Leybengrub and colleagues, writing in Cureus in 2026, found that visible light and long-wave UVA1 are significant drivers of pigment change in skin of colour, and that iron oxides are what block visible light. A sunscreen that stops only UVA and UVB is leaving the wavelength that pigments you unguarded.
Cover the Treated Area
If you are going to be outside after getting laser treatment, make sure to cover the area. If it’s your legs, wear pants or a long skirt. Or maybe you received laser treatment on your arms? Try wearing long sleeves. If your face had laser treatment, think about wearing a wide-brimmed hat and sunglasses to ensure the sun doesn’t hit your skin directly.
Avoid the Sun During Recovery
Shade for the first week or two after a session is the period that matters most for pigment, and sunscreen on the treated area carries on well past that. With the temperatures being what they are, the air conditioning is not the worst place to spend it.
For best results, apply sunscreen daily with an SPF of 30 or higher. Reapply the sunscreen throughout the day and avoid direct sunlight without protection.
A client of mine, two years into a course of treatments, flew to Miami for a week in March, less than two weeks before his next session. His skin type was already moderately dark, he came back a shade or two darker, and when I asked he denied having been in the sun. He was burned after that treatment, and he recovered over a few weeks with no residual scarring and no pigment change. I want to be clear that his outcome was a good one rather than a typical one. Kim and colleagues reported a Fitzpatrick IV patient in Cureus in 2025 who sustained second-degree burns from IPL and needed oral antibiotics, topical steroids, LED and picosecond sessions and depigmenting agents, with real improvement only after four months. My client got lucky. The lesson is still the same one.
Lessons learned: he failed to mention a few things:
- it was less than 2 weeks before his laser treatment appointment
- his skin had darkened by a shade or two, which means he couldn't perform the same settings as we had done over winter
- although his skin didn't peel, he did sustain a moderate sunburn to his shoulders
- my client confirmed only the next day that during the treatment, the pulses felt hotter, burning and more painful than previous sessions
- having already gone through 2 years of treatment, he should've suggested we push out by a few weeks
Worth reading alongside this. those bumps after a laser treatment, seasonal hair removal, preparing for a laser treatment, hyperpigmentation versus hypopigmentation and hair removal for athletes.