Does IPL Hair Removal Cause Cancer? We Went Through the FDA Records and the Papers

After years in the hair removal device business, clients bring all kinds of questions, and two of them keep showing up every so often. Does IPL cause cancer? Can the light penetrate the skin and damage internal organs?

Both questions are fair. Any device that puts energy into the body deserves to be questioned this way.

Before writing this, I went back through the relevant papers I could find on PubMed and the reports in FDA databases. Every point below comes from FDA records, academic journals, and clinical studies — no marketing talk, no speculation, just the data and how to read it.

The short answer

IPL technology has been studied for decades. The FDA has cleared multiple IPL devices for sale as home-use products, provided the manufacturer builds them to spec and users follow the instructions.

One key distinction needs to be stated: a device that has FDA clearance and comes from a legitimate manufacturer is a different thing from an unregistered device sold on third-party platforms.

Whether IPL is safe comes down to three things:

• Device classification and FDA clearance
• Usage parameters — energy level matched to skin type
• User education and the safety designs built into the device

On cancer, start with the 2006 animal study

The most commonly cited direct evidence is an animal study published in Lasers in Medical Science in 2006, indexed on PubMed. I remember it well, because it’s one of the few experiments that directly answers the cancer question.

The design: 144 hairless, light-skinned mice received IPL three times, once every two weeks, with a subset of mice also exposed to simulated solar radiation — i.e., UV. Observation ran 12 months.

The paper states the results very directly.

No tumors developed in untreated control mice or in mice treated with IPL alone.

IPL skin rejuvenation itself has no carcinogenic potential and does not affect UV-induced carcinogenesis.

With IPL alone, no tumors grew on mouse skin. Even stacked with UV — and UV is a recognized skin cancer driver — IPL did not accelerate UV-induced tumor formation.

How to read this: if IPL had strong carcinogenic potential, it should have shown up in a photocarcinogenesis model observed over 12 months. It didn’t.

On penetration to internal organs, the 2012 paper has measurements

A 2012 paper in Lasers in Surgery and Medicine measured the transmission and attenuation of intense pulsed light through human Achilles tendon and surrounding tissue samples — ex vivo tissue from amputation surgeries.

The experimental parameters: 13 J/cm² energy, 530 to 1110 nanometer wavelengths, directly measuring transmission at different depths.

Three numbers from the results are worth remembering:

• By the time light reached tendon depth, only 4% to 8.1% of the original energy remained
• The wavelengths still detectable at depth narrowed to roughly the 645 to 843 nanometer band
• The tendon itself absorbs a further share of the light that reaches it

People in this industry should have a sense of what 13 J/cm² means. Home beauty IPL typically doesn’t reach that energy, so the energy reaching deep tissue would only be lower. There is currently no peer-reviewed evidence that cosmetic-grade IPL energy causes internal organ damage.

What you can see in the FDA’s MAUDE database

MAUDE is the FDA’s database of medical device adverse event reports, and light-based hair removal products fall within its collection scope. It’s not perfect — underreporting is well known — but it’s still one of the best windows into how devices fail and get misused in the real world. One thing needs to be clear: the FDA’s own description of MAUDE says plainly that a single report does not prove the device caused the event. MAUDE description page To see raw data, go to the MAUDE search database and search by product name yourself.

The reports in the database fall roughly into two categories.

Category one: burns, and they’re often tied to unregistered devices. MAUDE holds plenty of burn reports where the device involved appears unregistered, or incomplete by US Class II device standards — no clear 510(k) record, incomplete labeling, unclear manufacturer responsibility. These reports repeatedly point at the same issue: once a device bypasses the regulatory channel, quality control, labeling, and safety design become unreliable.

Category two: eyes. MAUDE has reports of eye discomfort after accidental exposure, including cases involving well-known brands. Even with a legally marketed product, misuse — especially use on the face, or accidentally flashing toward the eyes — creates risk that was entirely avoidable. Wearing goggles and operating conservatively pushes that risk down.

What MAUDE says to consumers can be summed up in one table.

Risk factor	What’s common in MAUDE	Practical response
Unregistered devices	Higher burn risk, weak labeling, unclear controls	Buy devices whose regulatory status can be verified
Misuse, eyes	Accidental exposure events do occur	Use goggles; never aim at the eyes
Skin burns	Often linked to skin type mismatch or misuse	Judge by Fitzpatrick type, start at low energy, patch test first

Cell marker changes — don’t rush to call them bad news

Academic reviews have discussed cell marker changes after IPL exposure, such as oxidative stress markers, inflammatory markers, and apoptosis markers. These changes can’t automatically be treated as evidence of harm.

The context: some cellular responses are consistent with photothermal stress — which is exactly the designed goal of disabling the follicle. Tumor suppressor pathways, like p53, get activated in normal stress responses and repair signaling. Elevated risk typically occurs with improper use — energy set too high, wrong person selected, wrong intervals, rough technique.

So when discussing whether IPL is safe, the device and its usage have to be considered together.

What a 510(k) clearance actually means

An FDA 510(k) clearance generally means the manufacturer has demonstrated that the device is substantially equivalent, in intended use, to a legally marketed device of the same kind.

What it does establish: the device took a regulated path, and its labeling, warnings, and controls meet that path’s requirements.

What it does not promise: zero risk for every user in every scenario, suitability for all Fitzpatrick skin types, or elimination of misuse-related risk.

Practical advice for buyers and resellers

These recommendations grow directly out of the patterns in MAUDE reports.

1. Check regulatory status first. When shipping to US consumers, prefer devices whose FDA pathway information can be verified.
2. Respect the Fitzpatrick scale. Don’t use a device on skin types outside its supported range.
3. Protect the eyes. Operate conservatively; accidental exposure is avoidable.
4. Avoid suspicious pigmented lesions. Don’t use IPL over moles or lesions a doctor hasn’t examined.
5. Respect the intervals and start at low energy. Patch test first, then step up per the manual’s safety guidance.

References

1. Lin, M.-Y., Wong, T.-W., & Lin, C.-S. (2024). Revisiting Unaddressed Safety Concerns Regarding Intense Pulsed Light Treatment, Past and Present Perspectives. Photodermatol Photoimmunol Photomed, 40, e13005. https://doi.org/10.1111/phpp.13005
2. Hutchison, A. M., Beard, D. J., Bishop, J., Pallister, I., & Davies, W. (2012). An investigation of the transmission and attenuation of intense pulsed light on samples of human Achilles tendon and surrounding tissue. Lasers Surg Med, 44(5), 397-405. https://pubmed.ncbi.nlm.nih.gov/22505339/
3. Carcinogenesis related to intense pulsed light and UV exposure, an experimental animal study. Lasers Med Sci (2006). https://pubmed.ncbi.nlm.nih.gov/16964439/
4. Paasch, U., et al. (2017). New lasers and light sources - old and new risks? J Dtsch Dermatol Ges. https://pubmed.ncbi.nlm.nih.gov/28485872/