Treatment FAQ

how do laser hair treatment work

by Buster Balistreri Published 3 years ago Updated 2 years ago
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Laser hair removal is a medical procedure that uses a concentrated beam of light (laser) to remove unwanted hair. During laser hair removal, a laser emits a light that is absorbed by the pigment

Pigment

A pigment is a material that changes the color of reflected or transmitted light as the result of wavelength-selective absorption. This physical process differs from fluorescence, phosphorescence, and other forms of luminescence, in which a material emits light.

(melanin) in the hair. The light energy is converted to heat, which damages the tube-shaped sacs within the skin (hair follicles) that produce hairs.

During laser hair removal, a laser emits a light that is absorbed by the pigment (melanin) in the hair. The light energy is converted to heat, which damages the tube-shaped sacs within the skin (hair follicles) that produce hairs. This damage inhibits or delays future hair growth.May 4, 2022

Full Answer

How long should you use laser hair therapy?

Why Do People Lose Their Hair?

  • Age. This doesn’t even have to be old age. ...
  • Medical conditions. There are some medical conditions that will make you lose your hair, and it’s a crapshoot as to whether these therapies will help you out of it. ...
  • Side effects of medical conditions: think chemotherapy. ...
  • Poor nutrition. ...
  • Stress. ...

How laser hair therapy can help restore your hair?

  • it’s noninvasive
  • it’s painless
  • there are no side effects
  • it increases hair strength

Do lasers really regrow hair?

Laser hair regrowth is a treatment method that is clinically proven to be a safe and effective for men and women suffering from hair loss. It requires no invasive surgery procedures and is chemical and pain-free. There are no known side effects from using this hair growth treatment option to stimulate new hair growth.

Does laser hair growth for hair loss really work?

You may have heard that laser combs, brushes, hoods, and caps can help halt hair loss. The theory is that when hair follicles absorb laser light at a certain level, it stimulates hair to grow. But there’s not enough evidence that any of these devices restore hair or prevent balding.

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How long do laser hair treatments last?

Most patients can have laser hair removal once every 4 to 6 weeks. Your dermatologist will tell you when it is safe to have another treatment. Most patients see some hair regrowth. Your dermatologist can tell you when you can safely have laser treatments to maintain the results.

How long does it take for laser hair treatment to work?

Typically, the destroyed hair follicles shed their visible hair within a week of treatment. Therefore, assuming you need five sessions spaced four weeks apart, you should expect to see the final results of treatment within 21 weeks of your first session.

Does laser light regrow hair?

You may have heard that laser combs, brushes, hoods, and caps can help halt hair loss. The theory is that when hair follicles absorb laser light at a certain level, it stimulates hair to grow. But there's not enough evidence that any of these devices restore hair or prevent balding.

How many treatments does it take for laser hair removal to work?

As a general rule of thumb, the majority of patients need four to six sessions. Individuals rarely need more than eight. Most patients will see results after three to six visits. Additionally, treatments are spaced out about every six weeks since individual hairs grow in cycles.

How painful is laser hair removal?

Yes, laser removal does cause discomfort, but it typically causes much less discomfort than other forms of hair removal, especially waxing. Many individuals describe laser hair removal as akin to the feeling of a rubber band snapping against your skin.

Can I shave after laser?

Can You Shave After Laser Hair Removal? You can shave after you are receive a laser hair removal treatment. However, it is important that you do not shave right away. You'll be required by your medical professional to shave several days before your appointment to ensure the hair is the right length.

Is laser hair removal permanent?

Most people experience hair removal that lasts several months, and it might last for years. But laser hair removal doesn't guarantee permanent hair removal. When hair regrows, it's usually finer and lighter in color. You might need maintenance laser treatments for long-term hair reduction.

How many laser hair sessions do you need?

Generally, clients need about two to six laser treatments in order to completely get rid of hair. You can expect to see about a 10% to 25% reduction in hair after your first treatment. As you continue your treatments, more and more hair will fall out, and you'll notice that it continues to grow back more slowly.

Does laser hair therapy really work?

According to a 2014 study , low-level laser therapy appeared to be safe and effective for hair growth in both men and women. A 2013 study of 41 males ages 18 to 48 found that laser hair treatment provided a 39 percent increase in hair growth over a period of 16 weeks.

Is getting laser hair removal worth it?

While laser treatment doesn't get rid of hair forever (only electrolysis is approved by the U.S. Food and Drug Administration (FDA) for permanent hair removal), it does drastically reduce hair growth—to the point that many patients won't see any for months or even years, and the hairs that do crop up are often thinner ...

What happens if you don't shave before laser hair removal?

As we mentioned a little earlier, if you don't shave before your appointment, the laser will singe the hair resulting in a burn to your skin. In addition, if the hair hasn't been shaved properly, treatment will not be as effective, and it may result in small temporary grazes on the top layer of your skin.

Is laser hair removal cancerous?

Can laser hair removal cause cancer? It's a myth that laser hair removal can cause cancer. In fact, according to the Skin Care Foundation, the procedure is sometimes used to treat certain forms of precancerous lesions. Different lasers are used to treat sun damage and wrinkles.

Why is hair removal laser good for dark skin?

The hair follicle absorbs the laser, which is attracted to the hair’s melanin pigment, and the hair vaporizes instantly. The pigment in the hair attracts the laser, so darker hair absorbs the laser more effectively , which is why people with dark hair and light skin are ideal candidates for laser hair removal.

When was laser hair removal first used?

The first laser for hair removal was approved by the U.S. Food and Drug Administration (FDA) in 1995. If registered, equipment used in laser hair removal is vigorously regulated by the FDA for safety.

What is the procedure to remove hair from the eye?

Laser hair removal procedure. Before the procedure, a medical specialist (a physician, physician assistant, or registered nurse) cleans the treatment area. If the area is particularly sensitive, numbing gel can be applied. During the procedure, everyone in the room needs to wear special protective eyewear to prevent eye damage from the laser.

How long does it take for hair to grow after laser hair removal?

Two to eight weeks after laser hair removal, you may begin to notice an increase in hair growth in the treated area. The reason for this is that not all hair follicles respond equally to the laser. Most patients see a 10 to 25 percent reduction in hair after the first treatment.

How to avoid laser hair removal?

Laser hair removal shouldn’t be performed on tanned skin. Avoid irritating the skin. Stay away from waxing and plucking. Try not to take anti-inflammatory drugs that may increase bleeding, such as aspirin.

How long does it take for a numbing gel to work?

The bigger the area you would like treated, the longer the procedure takes. Small areas can take as little as a couple of minutes while larger areas such as the chest can take an hour or more.

How long does it take to lose hair?

It typically takes between three and eight sessions for permanent hair loss. The evaluation with your specialist before the procedure will give you a better idea of how many treatment sessions you may need. Also, you will likely need a touch-up session yearly to maintain effect.

What Is Laser Hair Therapy?

Laser therapy is a photon-assisted treatment that stimulates damaged or weakened follicular units. It does so through increasing circulation and follicle metabolism. In turn, this terminates hair loss and increases regeneration.

How Does Laser Therapy Increase Hair Growth?

The procedure is a helmet that patients wear which irradiates photons all around the scalp. You not feel any pain or discomfort during the procedure. Once the weak cells absorb these photons, circulation improves. Blood flows better giving hair follicles oxygen and nutrients.

How Many Sessions Do I Need?

There is no standard period of treatment, each case varies from one person to the other. Anywhere between 12 to 14 sessions is good for hair growth. With each session being around 20 minutes long. Once you complete your laser therapy, you hair loss will reduce. Also hair growth will increase, and you will restore your thickness and shine.

Benefits Of The Treatment?

As an effective treatment for hair loss, laser therapy is a new favorite for its many benefits. For one, it provides a boost of strength for brittle hair restoring its vitality. Moreover, the treatment solves issues such as dandruff. While also completely stopping their occurrence.

Does Laser Hair Therapy Work?

Laser hair therapy presented great results. But there is no consistency to its efficacy. And thus, it may work for some people and not for others. This is also the reason why we suggest coupling the treatment with other remedies.

What is laser hair removal?

Overview. Laser hair removal is a medical procedure that uses a concentrated beam of light (laser) to remove unwanted hair. During laser hair removal, a laser emits a light that is absorbed by the pigment (melanin) in the hair. The light energy is converted to heat, which damages the tube-shaped sacs within the skin (hair follicles) ...

How does a laser work?

When the doctor activates the laser, the laser beam will pass through your skin to the hair follicles. The intense heat from the laser beam damages the hair follicles, which inhibits hair growth. You might feel discomfort, such as a warm pinprick, and you'll likely feel a sensation of cold from the cooling device or gel.

What are the side effects of laser hair removal?

Risks of side effects vary with skin type, hair color, treatment plan and adherence to pre-treatment and post-treatment care. The most common side effects of laser hair removal include: 1 Skin irritation. Temporary discomfort, redness and swelling are possible after laser hair removal. Any signs and symptoms typically disappear within several hours. 2 Pigment changes. Laser hair removal might darken or lighten the affected skin. These changes might be temporary or permanent. Skin lightening primarily affects those who don't avoid sun exposure before or after treatment and those who have darker skin.

How to reduce swelling after laser hair removal?

You might notice redness and swelling for the first few hours after laser hair removal. To reduce any discomfort, apply ice to the treated area. If you have a skin reaction immediately after laser hair removal, the doctor might apply a steroid cream to the affected area.

How long does laser hair removal last?

Results vary significantly and are difficult to predict. Most people experience hair removal that lasts several months, and it might last for years. But laser hair removal doesn't guarantee permanent hair removal. When hair regrows, it's usually finer and lighter in color.

How long does it take to get laser hair removal?

What you can expect. Laser hair removal usually requires two to six treatments. The interval between treatments will vary depending on the location. On areas where hair grows quickly, such as the upper lip, the treatment might be repeated in four to eight weeks.

What is the best way to protect your skin from lasers?

The doctor will press a hand-held laser instrument to your skin. Depending on the type of laser, a cooling device on the tip of the instrument or a cool gel might be used to protect your skin and lessen the risk of side effects.

How does laser therapy work?

Like the water and nutrients absorbed by plants, the light energy is absorbed by your hair follicles so that your hair can continue to grow. As the light is absorbed, microcirculation increases, therefore distributing a more abundant blood supply and nutrients to the hair follicle.

What is the advantage of laser helmet?

With just two 20-minute sessions per week, you can stimulate your hair follicles to reduce shedding and increase volume. You can wear the helmet while reading a book or watching your favorite TV show. The LaserHelmet includes a power adapter and a carrying case. (Available at select locations.)

What is a capillus laser?

The laser caps deliver safe, low level laser light to your scalp. In just 6 minutes a day, you can stimulate and strengthen the cells in your hair follicles to encourage new growth. Capillus laser caps provide a convenient and comfortable solution to hair loss. The lightweight carrying case included with your cap makes travel and storage stress-free. The rechargeable lithium-ion battery pack that comes with your Capillus fits easily into your pocket or purse, allowing you to move freely while wearing the cap.

What is a laser comb?

The laser comb is a lightweight, handheld device that includes 12 medical-grade lasers. The Patented teeth part your hair, allowing lasers to penetrate your scalp and deliver therapeutic effects. You can revitalize your hair follicles at home to promote growth with three 8-minute sessions a week. This device includes a rechargeable battery ...

What is low level laser therapy?

Low level laser therapy (LLLT) is being used more and more to promote hair growth in people with androgenetic alopecia.

How many lasers are in a laser band?

LaserBand. The LaserBand contains 82 medical-grade lasers that provide light therapy directly to your scalp. It contains special teeth that part your hair to optimize light distribution to your follicles. You will use the LaserBand for as little as 90 seconds, three times a week.

Can laser hair regrowth be done at home?

If you’re looking to grow your hair and prevent hair thinning, laser hair therapy may be for you. Laser hair regrowth treatment devices are designed for at-home use, or as part of a larger hair treatment program in a salon. It is quick and convenient, which means it won’t disrupt your weekly schedule.

Overview

Laser hair removal is a procedure to remove unwanted hair on your body. It’s noninvasive, which means it doesn’t require any cuts in your skin. People may get this treatment on any part of their body, but the most common areas are:

Procedure Details

In the weeks leading up to your procedure, avoid tanning beds and stay out of the sun as much as possible. Naturally or artificially tanned skin can make laser hair removal less effective and lead to side effects.

Recovery and Outlook

You’ll likely need anywhere from six to eight laser hair removal treatments. Sessions are usually about six to eight weeks apart. This timing helps capture more hairs in different growth phases.

Additional Details

The Food and Drug Administration (FDA) approves some laser hair removal devices for home use. Without supervision by an experienced healthcare provider, the risk of misuse or injury increases. Use extreme caution and protective eyewear if you do at-home laser hair removal.

How does laser hair growth work?

Most laser hair growth devices work by emitting a light that penetrates the scalp. Although the scientific research is limited, proponents of laser therapy believe that this may enhance blood flow and stimulate hair growth.

What is laser hair regrowth?

Laser Bands, Combs, Helmets and Other Products. A variety of bands, combs, helmets and other products containing lasers are often marketed as hair regrowth treatments. Many of these products claim to produce superior results to other hair loss treatments in a convenient, easy-to-use form. In general, the scientific evidence to support ...

How does hair loss affect men?

Hair Loss: The Basics 1 Male pattern baldness, the type of hair loss that affects men, is caused by the androgen hormone DHT. If you’re genetically predisposed to male pattern baldness, DHT can stop your hair follicles from producing new hairs, causing thinning and total baldness. 2 Most science-based treatments for hair loss work by either blocking androgens such as DHT, or by stimulating the growth of new hairs. 3 Laser hair growth treatments claim to work by increasing blood circulation in the scalp and stimulating the growth of new hairs. 4 Some scientific studies have found that laser hair growth treatments are effective, while others have produced mixed or inconsistent results.

What is the most common type of hair loss?

There are several types of hair loss. However, the most common, and the one that’s usually the most concerning for men, is male pattern baldness -- a type of permanent hair loss that causes a receding hairline, thinning and, for some men, large-scale hair loss across the scalp.

What is the best treatment for hair loss?

There are FDA-approved medications such as finasteride and minoxidil. These work primarily by blocking the hormones that cause hair loss, or by improving blood flow to certain areas of your scalp.

What hormone causes baldness?

Male pattern baldness, the type of hair loss that affects men, is caused by the androgen hormone DHT. If you’re genetically predisposed to male pattern baldness, DHT can stop your hair follicles from producing new hairs, causing thinning and total baldness.

When was the first laser used for hair loss?

The first scientific research into laser treatments for hair loss was performed by chance in the 1960s, when scientists studying mice noticed that they began to grow hair after exposure to a low fluence red laser.

Are you a good candidate for laser hair removal?

Most likely yes. Laser hair removal when done by a medical professional is safe on all skin types as long as they have devices safe for light and dark skin. The ideal candidate for hair removal is someone with dark hair and light skin because the laser targets pigment in the hair follicle for destruction.

What lasers are safe for dark skinned patients?

Traditionally the Nd-Yag laser works best for dark skinned patients. It is able to penetrate deeper than the other laser mediums which prevents the pigment making cells in the skin from being accidentally targeted.

Is laser hair removal painful?

I have treated my chest and back, and it is not fun. It depends on the device, the thickness of your hair, your pain tolerance, and what type of cooling is used for hair removal. That being said I have used topical numbing which does help if you are pain sensitive. I have also had injectable numbing which worked well but required some pokes.

How many treatments will I need?

Usually anywhere from 4-8 treatments spaced 4-8 weeks apart depending on your skin type. Touch ups every year or so may be required.

What are the risks of laser hair removal?

Because we are heating the skin, risks include burns, dark spots,and blistering. Some patients, particularly Mediterranean, and Southeast Asian women might notice increased hair growth after laser treatment. This occurs in up to 30% of treated patients and if it happens, we just continue treating until hair reduction is noted.

Is laser hair removal safe for all body areas?

Yes. Laser hair removal can be done on the face, under the arms, the chest/back/arms/legs, and the bikini area. The darker and coarser the hair, the better the outcome.

Does laser hair removal help some medical conditions?

Patients with polycystic ovarian syndrome, pilonidal cyst disease, pseudofolliculitis barbae, and hidradenitis suppurativa may benefit from treatment.

How does laser light affect hair growth?

According to DermNet NZ, photons from low-level lasers can increase adenosine triphosphate (ATP) production in follicle cells, promoting hair growth and metabolism. As reported by the Hair Society, laser radiation can also invigorate cells by fostering blood flow and nutrient transport.

What is a laser hair growth cap?

Most laser hair growth caps use low-level laser therapy technology to stimulate the scalp and hair follicles. Low-level laser therapy products feature lower-strength lasers emitting photons that penetrate the scalp, targeting the follicles. The emitted light is in the red light or infrared range.

How long do you need to use a laser hair cap?

You may need to use a laser hair cap for several months before seeing hair regrowth. “For best results, it is ideal to repeat the treatment routinely,” Anna H. Chacon, MD, FAAD, and dermatologist tells WebMD Connect to Care.

How long does it take for laser hair hats to grow?

Laser hat manufacturers claim their devices help you grow thicker and healthier hair in as little as three months. These light-emitting hair caps and helmets are suitable for home use and are safe to operate.

Is laser hair hat FDA approved?

Although many laser hats on the market have FDA safety approval, the FDA has not conducted efficacy trials on these products. Evaluating if low-level laser hair devices are effective for specific hair loss conditions is still an active area of research.

Can a dermatologist diagnose hair loss?

Your dermatologist can diagnose the specific type of hair loss you are experiencing, recommend lifestyle changes for healthy hair, and steer you towards the best course of treatment. Don’t Wait. Get Help Today. The sooner you address the symptoms of hair loss, the more likely you are to prevent irreversible damage.

Can laser caps slow hair loss?

However, laser caps and other non-surgical hair restoration methods can slow the progression of hair loss when used consistently. For patients in more advanced stages of hair loss, other methods such as FUE hair transplant surgery may be the best method.”. Consistency and patience are essential when using laser hair regrowth devices.

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Overview

  • Laser hair removal is a medical procedure that uses a concentrated beam of light (laser) to remove unwanted hair. During laser hair removal, a laser emits a light that is absorbed by the pigment (melanin) in the hair. The light energy is converted to heat, which damages the tube-shaped sacs within the skin (hair follicles) that produce hairs. This ...
See more on mayoclinic.org

Why It's Done

  • Laser hair removal is used to reduce unwanted hair. Common treatment locations include legs, armpits, upper lip, chin and the bikini line. However, it's possible to treat unwanted hair in nearly any area, except the eyelid or surrounding area. Skin with tattoos should not be treated either. Hair color and skin type influence the success of laser hair removal. The basic principle is that the pi…
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Risks

  • Risks of side effects vary with skin type, hair color, treatment plan and adherence to pre-treatment and post-treatment care. The most common side effects of laser hair removal include: 1. Skin irritation.Temporary discomfort, redness and swelling are possible after laser hair removal. Any signs and symptoms typically disappear within several hours. 2. Pigment changes.Laser hair re…
See more on mayoclinic.org

How You Prepare

  • If you're interested in laser hair removal, choose a doctor who's board certified in a specialty such as dermatology or cosmetic surgery and has experience with laser hair removal on your skin type. If a physician assistant or licensed nurse will do the procedure, make sure a doctor supervises and is available on-site during the treatments. Be cautious about spas, salons or other facilities t…
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What You Can Expect

  • Laser hair removal usually requires two to six treatments. The interval between treatments will vary depending on the location. On areas where hair grows quickly, such as the upper lip, the treatment might be repeated in four to eight weeks. On areas of slow hair growth, such as the back, the treatment might be every 12 to 16 weeks. For each treatment you'll wear special goggl…
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Results

  • Hairs do not fall out immediately, but you will shed them over a period of days to weeks. This may look like continued hair growth. The repeated treatments are usually necessary because hair growth and loss naturally occur in a cycle, and laser treatment works best with hair follicles in the new-growth stage. Results vary significantly and are difficult to predict. Most people experience …
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