Is Getting Your Nails Done Bad for You?

Getting your nails done carries real but generally manageable health risks, ranging from allergic reactions and nail thinning to chemical absorption through the skin. None of these risks make the occasional manicure dangerous in the way that, say, smoking is dangerous, but frequent salon visits and certain types of nail enhancements do accumulate exposures that are worth understanding. The specifics depend heavily on what kind of manicure you get, how often, and how well the salon handles hygiene and ventilation.

UV and LED Lamps Used to Cure Gel Nails

Gel manicures require curing under ultraviolet or LED light, and since UV radiation is a known carcinogen, this understandably worries people. Lab studies have shown that UV nail lamps can cause DNA damage consistent with early cancer development, and a handful of case reports have linked extensive UV nail lamp use to squamous cell carcinoma and precancerous lesions on the hands of individual patients.¹ That sounds alarming, but the broader picture is more reassuring: population-level data show little to no increase in melanoma or nonmelanoma skin cancer on the hands among people under 65, and no cases have been reported of patients under 40 with a history of regular gel manicures developing skin cancer on their hands or nail beds.²

The disconnect between the lab evidence and the real-world numbers likely comes down to dose. Each curing session exposes only the fingertips for a few minutes, which is a fraction of the UV dose you’d get from a short walk outside. That said, the lab findings are enough that dermatologists often suggest applying broad-spectrum sunscreen to your hands before a gel appointment, or wearing fingerless UV-protective gloves that expose only the nail surface. If you get gel manicures a few times a year, the UV exposure is trivial. If you get them every two weeks for decades, precautions are sensible even if the absolute risk remains low.

Allergic Reactions to Acrylates

Gel polishes, builder gels, dip powders, and many nail adhesives contain acrylate chemicals, and allergic contact dermatitis from these compounds has become increasingly common as at-home gel kits have proliferated. In a European study of over 18,000 dermatitis patients, roughly three-quarters of all acrylate-related allergic reactions were traced to nail products. Most of those patients reacted to more than one acrylate compound, with 2-hydroxyethyl methacrylate (known as HEMA) triggering reactions in over 90% of cases.³ A separate eight-year study found that 97% of people patch-tested for nail-related allergies reacted to HEMA, and about three-quarters of those patients were regular consumers rather than professional nail technicians.⁴

The symptoms often show up not just around the nails but also on the face, eyelids, and neck, because people touch their skin with uncured product still on their fingers. Fingers were affected in about 80% of cases, hands in 40%, and the head or neck region in a significant minority.⁴ Once you develop an acrylate allergy, it tends to be permanent, and because acrylates are also used in dental bonding materials and some medical adhesives, the sensitization can create problems well beyond the nail salon.

The risk is highest when uncured gel touches the surrounding skin, which happens more frequently with at-home kits where application is less precise. Professional technicians are generally better at keeping product on the nail plate only, though they are not immune to causing skin contact. “HEMA-free” gels have entered the market, but many still contain other acrylates that can trigger the same allergic cascade. If you notice itching, redness, or peeling around your nails or anywhere on your face after gel applications, those are signs of early sensitization, and continuing to use acrylate products will make the reaction worse over time.

Chemicals in Nail Polish Itself

Traditional nail polish formulas historically relied on three problematic ingredients collectively known as the “toxic trio”: toluene sulfonamide formaldehyde resin, dibutyl phthalate (DBP), and toluene. Formaldehyde residue from the resin was classified as a carcinogen. DBP, a plasticizer, showed reproductive and developmental toxicity in animal studies and prompted ongoing FDA monitoring. Toluene, used to control evaporation rate and viscosity, was restricted in California in the 1990s because of effects on the nervous system, cardiovascular system, and reproductive health.⁵

The industry responded with “3-free,” “5-free,” and even “13-free” labels, but these claims deserve some skepticism. When researchers tested polishes across generations, they found that newer “free” formulations did have dramatically lower levels of the organophosphate plasticizer triphenyl phosphate (TPHP): the median TPHP concentration in 5-to-13-free polishes was essentially undetectable, compared to roughly 3,730 micrograms per gram in older and “3-free” formulations. However, those reformulated polishes had significantly higher concentrations of DEHP, a different phthalate plasticizer, suggesting that manufacturers were swapping one questionable chemical for another.⁶ “Free” labels indicate what was removed, not necessarily that the replacement is safer.

Endocrine Disruptors Absorbed Through the Nail

TPHP, the plasticizer found in many nail polishes, has drawn particular attention because the body absorbs it directly through the nail and surrounding skin. In a study of 26 participants, the TPHP metabolite diphenyl phosphate increased nearly sevenfold in urine within 10 to 14 hours of painting fingernails. When a separate group of participants painted synthetic nails attached to gloves rather than their own nails, the metabolite increase was significantly reduced, confirming that the primary route of absorption is dermal rather than through inhaled fumes.⁷ Follow-up analysis confirmed that TPHP is rapidly broken down in the body, with its metabolite still detectable in urine 24 hours after a single application.⁸

TPHP is classified as a suspected endocrine disruptor, meaning it may interfere with hormonal signaling. Whether the doses absorbed from a typical manicure are large enough to matter clinically remains an open question. For someone who paints their nails once a month, the exposure is brief and intermittent. For someone who wears polish constantly and reapplies weekly, the exposure becomes more chronic. Choosing newer “free” formulations does appear to reduce this specific exposure substantially, though as noted above, the replacement chemicals are not necessarily well-studied either.

What Gel Removal Does to Your Nails

If you have ever peeled off gel polish in a moment of impatience, you have probably noticed the white, flaky nail underneath. That damage is real and measurable. In a clinical report, five patients who had gel polish applied and then removed with acetone soaking and manual peeling developed nail brittleness, thinning, and white discoloration. One patient underwent ultrasound measurement before and after, which showed the nail plate had thinned from 0.063 cm to 0.050 cm on one measurement and from 0.059 cm to 0.030 cm on another.⁹ The combination of prolonged acetone soaking, which strips moisture and oils from the nail plate, and mechanical scraping to lift the softened gel accounts for most of the structural damage.

A large self-reported survey of over 2,100 gel polish users found that more than 75% reported side effects after removing gel polish, a rate significantly higher than during application or while wearing the product. Nail plate changes were more common when removal was done by non-professionals, suggesting that technique matters a great deal.¹⁰ If you do get gel manicures, letting a technician remove them properly, with adequate soaking time and minimal scraping, limits the damage. Peeling gel off by hand is the worst thing you can do for your nails.

Cuticle Cutting and Infection Risk

The cuticle is a thin seal between the nail plate and the surrounding skin fold, and it exists for a reason: it keeps bacteria, fungi, and debris out. Cutting or aggressively pushing back the cuticle breaks that seal, creating an entry point for infection. Paronychia, the painful swelling and redness around the nail, develops when this barrier is disrupted.¹¹ A case report specifically described acute paronychia and nail shedding after a “Russian manicure,” a technique that uses an electric drill to remove the cuticle entirely for a cleaner look. The authors warned that aggressive cuticle manipulation can lead to localized infection and lasting nail damage.¹²

Gentle pushing of the cuticle with an orangewood stick is considered relatively low risk. The problems escalate when technicians clip live cuticle tissue or use electric files on the cuticle area. If you are prone to paronychia or have a weakened immune system, asking your technician to leave the cuticle alone is a reasonable precaution.

Fungal Infections Under Artificial Nails

Artificial nails, whether acrylic, gel extensions, or press-ons, create a warm, sealed space between the enhancement and the natural nail. Moisture can get trapped, and if the seal lifts even slightly, fungi and bacteria have an ideal environment. A study of women who used nail cosmetics found that artificial nail users had a 46% prevalence of onychomycosis, with mechanical or chemical nail trauma roughly doubling the odds of infection.¹³ Aggressive filing, cuticle manipulation, and acetone exposure all compromise the nail barrier and make fungal colonization easier.

Fungal nail infections are notoriously difficult to treat, often requiring months of oral antifungal medication. Prevention is much simpler: keeping nails dry, avoiding lifting or picking at enhancements, and giving your natural nails periodic breaks between sets of acrylics or gels all reduce the risk. If you notice discoloration, thickening, or a foul smell under an artificial nail, removing the enhancement and seeing a dermatologist early gives you the best chance of clearing the infection before it takes hold in the nail bed.

Pedicure Footbaths and Bacterial Infections

Pedicures carry a unique risk that manicures do not: the whirlpool footbath. In a California investigation prompted by an outbreak of skin boils caused by Mycobacterium fortuitum, researchers swabbed 30 footbaths across 18 nail salons in five counties. Mycobacteria were found in 97% of them.¹⁴ The bacteria colonize the screens and internal plumbing of the jets, and standard disinfection between clients often fails to eliminate them.

Mycobacterial skin infections from footbaths produce painful, slow-healing boils on the lower legs that can take months of antibiotic treatment to resolve. The risk is higher if you shave your legs shortly before a pedicure, since nicks and razor burn provide entry points. If you get pedicures regularly, asking whether the salon uses pipeless footbaths (which are easier to disinfect) or individual basin liners reduces the risk. Alternatively, you can request a simple basin of water rather than a jetted footbath.

What Nail Salon Workers Face

The health conversation around nail services tends to focus on clients, but the people most at risk are the technicians who spend eight or more hours a day in salons. Volatile organic compounds, including formaldehyde, toluene, and other solvents, accumulate in poorly ventilated salon air. A study in Colorado nail salons found that 70% of surveyed workers experienced at least one employment-related health symptom, with many reporting multiple symptoms simultaneously.¹⁵ Research on Asian nail salon workers on the US East Coast found an association between chemical exposure to VOCs and self-reported nose, throat, eye, and skin irritation, headaches, and breathing problems.¹⁶

The numbers from a Korean study are striking: compared to controls, nail technicians had nine times the odds of reporting headaches, more than 50 times the odds of nose irritation, and roughly four to five times the odds of throat irritation, dizziness, and cough.¹⁷ Beyond chemical vapors, nail dust from filing acrylic and dip-powder nails poses a respiratory hazard. A pilot study of nail technicians found that longer time on the job and more hours spent working with acrylic gels were both associated with reduced lung function, and markers of airway inflammation increased with job duration.¹⁸

For clients, the exposure during a single appointment is brief. For workers, it is a cumulative, daily, career-long exposure, and the research consistently paints a concerning picture. Ventilation is the most effective intervention: local exhaust ventilation systems at individual workstations reduced average acetone exposure by at least 77% and dust exposure by 67 to 90% in testing.¹⁹ If you walk into a salon and your eyes water or you can taste the chemicals in the air, the ventilation is inadequate, and your technician is paying for it with their health every day.

Press-On Nails and Nail Glue

Press-on nails are often marketed as a safer alternative to salon gel and acrylic, and in some respects they are: no UV lamp, no monomer fumes, and easy removal. But the adhesives come with their own issues. Nail glues typically contain either cyanoacrylate (the same ingredient in super glue) or methacrylate, both of which can cause allergic contact dermatitis. Case reports document dermatitis spreading beyond the fingers to the hands, face, eyelids, and trunk, along with nail damage including lifting and white discoloration.²⁰

There is also a burn hazard that surprises most people. Cyanoacrylate undergoes an exothermic reaction when it contacts cotton or wool, generating enough heat to cause a genuine thermal burn on the skin underneath clothing. A case report documented a patient burned when spilled nail glue reacted with the cotton of their clothing.²¹ The practical lesson is simple: if you spill nail glue on fabric, remove the fabric from your skin immediately rather than trying to blot or wipe it.

How to Reduce Your Risk Without Giving Up Manicures

You do not have to swear off nail services entirely to manage the risks described above. A few practical adjustments make a meaningful difference.

• Space them out: Giving your nails a few weeks bare between gel or acrylic sets allows the nail plate to recover moisture and thickness, and reduces cumulative chemical exposure.
• Protect your skin from UV: Apply broad-spectrum sunscreen to your hands before a gel appointment or wear UV-blocking fingerless gloves. Both options are inexpensive and widely available.
• Avoid aggressive cuticle removal: Ask your technician to gently push cuticles rather than cut them, and decline drill-based cuticle work unless you understand the risks.
• Choose well-ventilated salons: Visible downdraft vents at workstations or open windows with cross-ventilation are good signs. Strong chemical odor is a red flag for workers and clients alike.
• Watch for allergic signs early: Itching, redness, or peeling around the nails, fingertips, or even the face after gel applications is a signal to stop using acrylate-based products before the allergy worsens.
• Skip the jetted footbath: For pedicures, a simple basin of warm water avoids the mycobacterial risk that comes with whirlpool jets.

When the Research Falls Short

The honest limitation of this whole body of evidence is that most of it consists of small studies, case reports, and occupational surveys. There are no large, long-term randomized trials tracking thousands of regular manicure clients over decades, because nobody is going to fund that kind of study for a cosmetic habit. The UV cancer risk data are reassuring at the population level, but population-level data can miss risks concentrated in small subgroups. The chemical absorption studies confirm that your body takes in these compounds, but the health consequences of that absorption at consumer-level doses, as opposed to occupational doses, remain unclear for most of the chemicals involved.

What we can say confidently is that the risks are real, dose-dependent, and mostly avoidable with basic precautions. The person getting a regular polish manicure every few weeks with gentle cuticle care faces a very different risk profile than the person getting acrylic fills biweekly with aggressive cuticle cutting at a poorly ventilated salon. If you enjoy having your nails done, the goal is not to quit but to be selective about what you expose yourself to and how often.