About Gel Polish
Gel polish is a long-wearing nail coating that is painted on much like ordinary varnish, then set (cured) under a UV or LED lamp so it hardens on the nail. Because it stays glossy and chip-resistant for around two to three weeks, it is one of the most popular salon nail treatments in the UK. You will sometimes see it sold under brand names such as Shellac, or described as a builder-in-a-bottle (BIAB) overlay when a thicker, strengthening gel is used. A typical appointment involves lightly preparing the natural nail, applying a base coat, colour and top coat, curing each layer, then wiping off the tacky finish. Gel polish is generally low risk and comfortable, but it is not entirely without considerations: the main points are skin sensitisation to the gel ingredients, protecting the natural nail during removal, and a small amount of UV exposure to the hands. A good technician keeps the product off your skin, cures it correctly and removes it gently, all of which help keep your nails healthy while you enjoy the finish.
On the day, and after
During the treatment
Your technician will start by tidying the cuticles and gently buffing the nail surface so the gel can grip. They should keep the product on the nail plate and away from the surrounding skin, as skin contact with uncured gel is the main cause of allergy over time. A thin base coat is applied and cured under the lamp, usually for a few seconds to a minute, followed by one or two colour layers and a top coat, each cured in turn. You place your hand under the lamp for each step, which feels warm and occasionally gives a brief heat spike, particularly with darker or thicker colours. If it feels hot, you can lift your hand out for a moment. The finished nails are wiped with a cleanser to remove the sticky layer, then shaped and oiled. A standard set of gel polish typically takes around forty five minutes to an hour. It should be a comfortable, relaxing appointment with no pain.
How it feels
Gel polish should feel comfortable throughout. You will notice gentle buffing and filing as your nails are prepared, and a light pressure as each layer is brushed on. The main sensation is warmth when your hand is under the lamp during curing, which lasts only seconds at a time. Occasionally, especially with darker colours, thicker gel or after a fresh coat, you may feel a brief heat spike as the layer sets. This is normal, but it should never be genuinely painful; if it is, lift your hand out of the lamp for a moment and let it cool, then return it. There should be no stinging, burning of the skin or soreness. Afterwards your nails simply feel smooth, sealed and slightly firmer than usual, with no lingering discomfort.
Results and maintenance
A well-applied set of gel polish typically stays glossy and chip-free for around two to three weeks, though this varies with your nail growth, lifestyle and how well the product is applied. As the nail grows, a gap appears at the base, and this is usually the point to rebook. You have two main options: full removal and a fresh set, or an infill with a builder-style gel where the grown-out area is filled in and reblended. Removal should always be done by soaking the gel off in acetone rather than peeling, which protects the natural nail underneath. The look can be tailored to you, from sheer and natural to bold colour, added length with tips or extensions, or a strengthening BIAB overlay if your nails are prone to splitting. Daily cuticle oil, gloves for wet or harsh work, and occasional breaks between sets all help keep your natural nails healthy over the long term.
Before and after your appointment
Before your appointment
You do not usually need to do much beforehand, but a little planning helps the finish last and keeps your nails healthy. Arrive with clean, product-free nails where possible, and avoid heavy hand cream on the day, as oils can stop the gel adhering. If you have reacted to gel, acrylic or lash products before, or you notice itching, lifting or soreness around a previous set, tell your technician before they start, as this can signal an acrylate allergy that needs a rethink rather than a repeat. Mention any recent nail damage, skin conditions around the nail such as eczema or psoriasis, or medication that affects the skin. Let them know if you are pregnant, as many salons will still treat you but may improve ventilation. If you want a particular shape, length or colour, bring a photo. It is also worth asking in advance whether HEMA-free products are available if you are prone to sensitivities.
Aftercare
Gel polish needs very little aftercare, but a few habits protect both the finish and your natural nails. Apply cuticle oil daily, as this keeps the nail and surrounding skin flexible and helps prevent lifting and cracking. Wear gloves for washing up, cleaning and gardening, since prolonged water and harsh chemicals loosen the seal. Avoid using your nails as tools to pick, scrape or open things, as this is the quickest way to chip the gel or damage the layers underneath. If a nail chips or the edge lifts, resist the urge to peel or pick it off: peeling pulls away layers of the natural nail and can expose uncured product to your skin, raising the risk of sensitisation. Instead, book in to have it repaired or properly removed. Keep an eye out for any itching, redness or swelling around the nails or fingertips in the days afterwards, and mention it to your technician or GP if it appears.
There is no downtime with gel polish. Your nails are fully cured and touch-dry by the time you leave, so you can return to normal activities straight away, including washing your hands, without the smudging risk of ordinary varnish. Because everything is set under the lamp, there is no lengthy drying period to sit through. The only thing to be mindful of is that natural nails can feel a little thinner or more sensitive after repeated wear and removal, so occasional breaks between sets, along with daily oil, help them stay in good condition. If your fingertips feel sore, itchy or unusually sensitive after an appointment, that is not typical and is worth getting checked.
Safety and medical considerations
Safety essentials
The most important safety points with gel polish are keeping the product off your skin, curing correctly and removing gently. Uncured gel touching the skin, whether from flooding the cuticle, using the wrong lamp, under-curing or peeling the polish off, is the main way people become allergic to the acrylate ingredients over time, and once that allergy develops it is usually permanent. A competent technician works neatly, uses the lamp matched to their product and follows the correct cure times. Hygiene matters too: files, buffers and any tools that touch skin or nail should be single-use or properly sterilised between clients to reduce the risk of infection. The UV or LED lamp gives your hands a small dose of UVA, and while the evidence suggests the skin cancer risk is very low for typical use, applying sunscreen to the hands beforehand or wearing fingerless UV-protection gloves is a sensible, low-effort precaution. If your nails become painful, discoloured or lifting, stop and seek advice.
Medical considerations
Gel polish is cosmetic rather than medical, but a few health matters are worth flagging to your technician. If you have diabetes, poor circulation or reduced sensation in your hands, take extra care, as minor cuts or infections around the nail can be slower to heal; a GP or podiatrist can advise if you are unsure. Persistent nail changes such as thickening, pitting, separation from the nail bed or discolouration can occasionally reflect a fungal infection or an underlying condition, and covering them with gel can mask the problem, so it is better to have them checked before booking. People with eczema, psoriasis or very sensitive skin around the nails may find gel more irritating. If you have previously reacted to gel, acrylic, dental resins or the adhesive in lash extensions, mention it, as these can share related acrylate chemistry. Gel polish is generally considered fine during pregnancy, though some prefer extra ventilation. This information is general and does not replace advice from your GP or a qualified practitioner.
Patch testing
A formal skin patch test is not the routine standard for gel polish in the way it is for hair or lash dye, but a proper consultation and honest history are important and serve a similar protective purpose. Your technician should ask whether you have ever reacted to gel, acrylic, dental work or lash glue, and check the skin around your nails is healthy before starting. This matters for your safety and for UK liability: if a client has flagged a previous reaction and is treated anyway, an insured technician can be found at fault in a claim. It is worth understanding the nuance too. Acrylate allergy usually builds up gradually through repeated skin contact, so someone can tolerate gel for years and then become sensitised, which means no single test fully rules out a future reaction. That is why keeping product off the skin, curing fully and never peeling gel off matter as much as any test.
Knowing a good practitioner
Green flags
A good technician takes a brief history, checks your nails and skin are healthy, and asks about any past reactions before starting. They work neatly, keeping the gel on the nail and off the surrounding skin, apply thin even layers and use the correct lamp and cure time for their product. Tools that touch skin or nail are single-use or properly sterilised, the workspace is clean, and there is decent ventilation. They remove gel by soaking it off rather than picking or force-scraping, and they finish with cuticle oil and sensible advice. Good practitioners are happy to explain what they are using, offer HEMA-free options if you are sensitive, and never rush you under a lamp that feels too hot. Clear pricing, honest guidance on nail health and a willingness to say when a break or a GP visit is a better idea are all reassuring signs.
Red flags
Be cautious if a technician repeatedly floods your cuticles and skin with gel, does not clean or replace files and tools between clients, or cannot tell you which lamp matches their product or how long to cure it. A strong burning sensation under the lamp that they dismiss, rather than pausing, is not right. If they offer to peel or scrape old gel off quickly instead of soaking it off properly, that damages the nail and raises allergy risk. Persistent itching, redness, swelling, blistering or tiny splits in the skin around the nails, or lifting and soreness of the nail itself, can signal an acrylate allergy or infection and should be taken seriously. Nails that are left thin, sore and damaged after every visit suggest heavy-handed prep or removal. Any pus, spreading redness or throbbing pain needs prompt medical attention.
Questions to ask
- Do you offer HEMA-free or low-allergen gel products, and would you recommend them for me?
- How do you sterilise or dispose of the files and tools that touch my nails and skin?
- Which lamp do you use, and is it matched to the gel system for correct curing?
- How will you remove the gel, and do you soak it off rather than peel or scrape it?
- What can I do to protect my natural nails between appointments?
- What signs of a reaction or infection should I watch for afterwards, and what should I do?
Frequently asked questions
Is gel polish bad for my natural nails?
Gel polish itself is generally kind to nails when applied and removed properly. Most damage comes from peeling or picking it off, or from rough filing, which strips the natural nail. Soaking off gently, using daily cuticle oil and taking occasional breaks keep your nails in good shape.
Are the UV lamps safe?
The UV or LED lamp gives your hands a small dose of UVA. Current evidence suggests the skin cancer risk is very low for typical use, but as a simple precaution you can apply sunscreen to your hands beforehand or wear fingerless UV-protection gloves during curing.
Can I become allergic to gel polish?
Yes, it is possible to become sensitised to the acrylate ingredients, usually through repeated skin contact with uncured gel. It can develop even after years of trouble-free wear. Keeping product off the skin, full curing and never peeling gel off all lower the risk. Itching or swelling around the nails should be checked.
How is gel polish removed?
It should be soaked off using acetone, often with the nails wrapped in cotton and foil for around ten to fifteen minutes, then gently eased away. It should never be forcibly peeled or scraped, as that pulls away layers of the natural nail and can expose skin to uncured product.
How long does gel polish last?
Most people get around two to three weeks of glossy, chip-resistant wear, depending on nail growth and how hard you are on your hands. Once it grows out at the base, you can either have it removed and redone or, with a builder gel, have an infill to extend the look.
This guide is general information, not medical advice. Speak to a qualified practitioner, and to your GP if you have a medical condition, before booking.