Does Laser Hair Removal Hurt? Aerolase and Darker Skin Tones

Most people who ask whether laser hair removal hurts have already tried waxing, and that is the right comparison to start with. Waxing pulls hundreds of hairs out of the follicle at once. A laser heats the follicle from inside with a pulse of light. The sensations are different in kind, and most patients who have done both say the laser is easier, though a few areas are an exception.

The direct answer: laser hair removal feels like a quick snap of a rubber band followed by warmth, and most patients rate it between two and five out of ten, higher on the bikini line, underarms and upper lip and lower on the legs, arms and back. The device matters as much as the area. At Vital Medical Care & Aesthetics, laser hair removal is performed with the Aerolase laser the clinic lists, a device designed by its manufacturer to treat a wide range of skin tones with less discomfort, and candidacy, the areas and the number of sessions are decided at a consultation with Dr. Joelle Vital, MD.

Laser hair removal is a snap and a flash of heat, not a sustained pain

Each pulse of the laser lasts a fraction of a second. The sensation arrives and leaves in the same instant, which is why patients compare it to a rubber band flicked against the skin. There is a brief warmth afterward, and on a large area such as the legs the skin can feel warm all over by the end, like mild sun exposure.

The intensity depends on how much pigment the laser finds. Dark, coarse hair absorbs more energy than fine hair and produces a sharper snap. Hair that is thick at the first session becomes finer with each one, so most patients report that sessions get easier as the series goes on. The first visit is usually the most noticeable and also the shortest in memory, since a small area such as the upper lip takes a few minutes and even full legs are typically done in under an hour.

Pain is personal, and a minority of patients find certain areas more intense than this description. The provider checks in throughout and can slow down, and nobody is expected to sit through something that feels wrong. Our guide to whether microneedling hurts answers the same question for facial microneedling.

Why it feels the way it does, and why the Aerolase is different

Hair removal lasers work by selective photothermolysis. The light is tuned to a wavelength absorbed by melanin, the pigment in the hair shaft. The energy travels down the hair into the follicle and converts to heat, which damages the follicle’s ability to grow a new hair. The snap you feel is that heat arriving.

The same melanin exists in skin, which is the central problem of laser hair removal. A wavelength that is absorbed strongly by pigment will heat dark skin as well as dark hair, which both hurts more and risks burns and pigment change. Older lasers worked around this with cooling gels, chilled tips and lower energy, and were often unsuitable for darker skin tones.

What the clinic’s Aerolase device is designed to do

The Aerolase laser the clinic lists uses a 1064 nm wavelength, which is absorbed less by the melanin in the surface of the skin and more deeply in the follicle, and a very short pulse duration described by its manufacturer as delivering energy faster than the skin can conduct it away. The manufacturer’s design claims are that this allows treatment across all skin tones with less heat left in the surrounding skin and no need for contact cooling or gel. Patients tend to describe it as a warm tap rather than a sharp snap. The clinic does not quote laser settings, because they are chosen for each patient and area at the session. The Aerolase page lists the other concerns the device is used for.

Which areas feel the most

Sensation follows the same rules everywhere: thin skin, dense coarse hair and a nerve rich area add up to more sensation, while thick skin and finer hair feel less. The table gives typical patient reports and the usual number of sessions for each area. Session counts are typical ranges, not a promise, and the physician sets the plan for you.

Area	Typical sensation	Why	Typical sessions
Upper lip	4 to 6 out of 10	Thin skin, many nerves, coarse hair	6 to 8, spaced 4 weeks
Chin and jaw	3 to 5	Coarse hormonal hair	6 to 8, spaced 4 weeks
Underarms	3 to 5	Dense dark hair, sensitive skin	6 to 8, spaced 4 to 6 weeks
Bikini and Brazilian	4 to 6	Coarse hair, very sensitive skin	6 to 8, spaced 4 to 6 weeks
Arms	2 to 3	Finer hair, thicker skin	6 to 8, spaced 6 to 8 weeks
Legs	2 to 4	Large area, warmth builds, shins sharper	6 to 8, spaced 6 to 8 weeks
Back and chest	2 to 4	Thick skin, dense hair on some men	6 to 8, spaced 6 to 8 weeks

Bony spots within an area, such as the shins, ankles and the collarbones, feel sharper than the padded parts around them. The clinic also lists armpit clarification for patients whose main concern is underarm darkening alongside hair.

Darker skin tones: what changes and what to ask

For patients with brown and deeper skin, the question of pain is tied to the question of safety, because the same thing causes both: a laser that heats pigment in the skin rather than only in the hair. With the wrong device, darker skin feels more during treatment and carries a higher risk of blistering, dark marks or light patches afterward.

Two things reduce that risk. The first is the wavelength. Longer wavelengths such as 1064 nm pass through the surface with less absorption by skin pigment, which is why they are the standard choice for darker skin in published guidance. The second is the provider. A physician led clinic that treats a wide range of skin tones, performs a test patch where there is any doubt, and starts conservatively is doing the work the device alone cannot. The Aerolase laser the clinic lists was designed with darker skin tones in mind, and the physician still assesses each patient individually.

Questions worth asking at the consultation

• Which wavelength will be used on my skin, and why.
• Will a test patch be done, and how long before the first full session.
• How recent sun exposure or a tan will change the plan.
• What the aftercare is for reducing dark marks, since that matters more in deeper skin tones.

Patients with a tan, from sun or self tanner, are asked to wait until it fades, whatever their baseline tone, because tanned skin is pigment the laser cannot ignore.

How to prepare so it hurts less

Most of the discomfort patients can control is decided in the days before the session rather than during it.

1. Shave the area 12 to 24 hours before. Hair above the skin absorbs energy at the surface, which stings and wastes the pulse. Hair in the follicle is what the laser needs.
2. Do not wax, pluck, thread or use depilatory cream for about four weeks before. The laser needs the hair in the follicle, and those methods remove it.
3. Stay out of strong sun for about two weeks before, and arrive without a tan or self tanner.
4. Stop retinoids and exfoliating acids on the area for a few days before, since they make skin more reactive.
5. Tell the physician about any medication that increases light sensitivity, including some antibiotics and acne medications, and about isotretinoin use in the past six months.
6. Skip caffeine on the day if you are sensitive, and arrive hydrated and fed.
7. Ask about numbing cream. It is not needed for most areas with this device, but the physician can advise for the bikini line or upper lip.

Ibuprofen and aspirin before the session are not recommended unless the physician says otherwise, since they increase bruising. The order of events on the day is simple: cleanse, protective eyewear, the pulses, a cooling product, sunscreen.

Sessions, spacing and what results typically look like

Laser hair removal works only on hairs in the active growth phase, and at any one time only a fraction of hairs in an area are in it. That is why a series is needed. Most areas take six to eight sessions, spaced about four weeks apart on the face and six to eight weeks apart on the body, so each session catches a new group of follicles in the growing phase. For skin texture rather than hair, our guide to RF microneedling before and after follows a series session by session.

Published studies and clinical experience suggest that most patients with dark hair see a substantial long term reduction in hair after a completed series, with any remaining hair finer and lighter. Some regrowth over time is normal, particularly in hormonally driven areas such as the chin, and a maintenance session once or twice a year keeps it in check. These are typical outcomes rather than a promise, and the physician will say where your hair color, skin tone and the area place you. Our guide to adding PRP to microneedling covers how a skin treatment series is planned.

Hair color matters more than skin color with the right laser

The laser targets melanin in the hair. Dark brown and black hair respond best. Light blond, red, gray and white hair hold little pigment and respond poorly with any laser, which the physician will explain at the consultation rather than selling a series that is unlikely to work.

After the session, the risks, and who should wait

Immediately after, the skin is pink and slightly swollen around each follicle, a reaction that looks like goosebumps and fades within a few hours to a day. Treated hair does not fall out at once. It sheds over the following one to three weeks, often looking like it is growing before it releases. Gentle exfoliation after the first week helps it along.

• Keep the area out of the sun and use sunscreen daily, which is the main protection against dark marks.
• Skip hot showers, saunas, heavy exercise and tight clothing on the area for 24 to 48 hours.
• No waxing or plucking between sessions. Shaving is fine.
• Report blistering, crusting or pigment change to the clinic promptly. These are uncommon and are managed better early.

Treatment is deferred in pregnancy, as a precaution rather than because of known harm, and the physician discusses breastfeeding case by case. An active skin infection, a cold sore outbreak near the area, an open wound or a fresh tan are reasons to reschedule. A history of keloid scarring, light sensitive conditions, a tattoo in the treatment area and recent isotretinoin are discussed at the consultation. Blood thinners are not a bar to treatment but can increase bruising and should be mentioned. Pricing by area and for packages is confirmed at the consultation and listed on the price guide.

Laser hair removal in Merrick

The consultation decides whether your hair and skin suit the laser, which areas to treat, whether a test patch is needed and how many sessions to plan. Patients who were told elsewhere that their skin tone was not suitable are welcome to be assessed, since the device the clinic lists was designed for that question.

Vital Medical Care & Aesthetics is at 2209 Merrick Rd, Suite 202, Merrick, NY 11566, about a ten minute walk from the Merrick LIRR station on the Babylon Branch, with the NICE n19 bus running along Merrick Road. Hours are Monday 9am to 5pm, Tuesday 9am to 7pm, Wednesday and Thursday 7:30am to 5pm, Friday 9am to 5pm and Saturday 9am to 2pm. Visits are by appointment: book laser hair removal online or call (516) 414-1101.

Questions readers ask

Read next

• Does Microneedling Hurt? Numbing, Depth and Downtime
• What a Chemical Peel Does to the Skin, Layer by Layer
• RF Microneedling Before and After: What Changes Session by Session