How Many Sessions for Laser Hair Removal Underarms?

HLaser Hair Removal Underarms

Gone are the days when women endured pain and spent long hours at the salon to get rid of unwanted hair.

Laser hair removal treatment has replaced all the traditional methods and is becoming immensely popular. It is a safe, efficient, and long-lasting hair removal method that can give you hair-free and smooth skin.

Is waxing giving you painful times? Is shaving leaving your skin bruised and bumped? If yes, then it’s time to consider laser. 

Excess underarm hair can leave you embarrassed and also restrict the choice of dresses. However, you can get freedom from underarm hair with laser treatment and then never have to get back to razors and waxing.

If you are thinking of getting underarms treated with the laser, then there might be several questions floating in your mind.

How does it work? Is it safe and permanent? Who can get the treatment done? We answer all these questions and much more in this article.

How does Underarm Laser Hair Removal Work?

Though it sounds complicated, the process of laser hair removal is quite simple. Lasers, which release light energy deep into the skin, penetrates and destroys the hair follicles.

Once the follicles are destroyed, the hair growth is curbed.

To ensure that the hair follicles are obliterated, you need to undergo multiple treatments as this cannot be achieved in one go. Hair growth has 3 stages; growth, transition, and resting.

Laser treatment is most effective only in the growth stage.

Thus, by treating a single area multiple times, your dermatologist ensures that all the hair is targeted during its growth stage. This will give you efficient results and hair-free skin.

Your dermatologist will schedule your appointments over several weeks. This gives the body time to rest, and thus, laser treatment brings out the best results.

Things to know about Underarm Laser Hair Removal 

Does it hurt? 

Though laser treatment cannot be called completely painless, it surely does not hurt as much as traditional techniques. 

Those who have experienced laser treatment compare it to the flicking of a rubber band on your skin.

The zap of the laser feels like a continuous prick of a pin into the skin of your underarms. Though the process only lasts a few minutes, the tenderness can be felt even after several treatment hours.

Before your laser appointment, your doctor may ask you to shave the underarms as it prevents any hair from being burnt, which can subsequently burn the skin too.

Thus, when the area is pre-shaved, the light passes directly into the skin with causing harm.

When can you see the results? 

There is no standard time frame for the laser results to start appearing. The results vary from individual to individual as everyone’s body reacts differently to the treatment.

Some people may notice a difference in the hair growth, texture, and thickness after the first session itself, whereas some may see the result after 2-3 sessions.

It can even take up to 2 weeks to see a difference, and the dead hair may take up to 15 days to start falling out.

Since the underarm is a small area, the results may start appearing sooner. Some people start noticing fine hair growth after one or two sessions which may not even need shaving.

As a result of laser treatment, you will notice that the hair grows normally but falls out quickly as the follicles begin to die slowly. This is completely normal and is an indication that your body is responding to the laser.

Is it a permanent solution?

Laser hair treatment is an efficient and long-lasting hair removal method. However, it is not a permanent solution. The treatment results last for several months or years for different individuals.

After the prescribed number of sessions, many individuals notice a considerable difference in hair growth.

Experts are of the opinion that there can be around 80-90% reduction in the underarm hair growth at the end of the laser treatment.

Thus, after getting laser hair removal treatment, you will not need to shave your underarms as frequently as before.

Also, since the hair growth is reduced and hardly noticeable, you have the freedom to put on your favorite sleeveless dress too.

Who can/cannot get the treatment done?

Anyone above the age of 14-16 years is a suitable candidate for getting laser treatment. Many experts also believe that people with thick, coarse hair are most suited for the treatment.

Since the laser works by detecting the pigment in the hair, it works efficiently in such cases.

Though the treatment may take time to show the best result, it is certainly very effective. Unfortunately, those with blonde or light hair color may not find the treatment to be very effective.

If you are under any specific medication, you need to disclose it to the doctor so that he can decide whether the treatment is safe for you.

Also, teenagers under the age of 14 years or those who may not have hit puberty are not the best one’s for laser. Since the hormonal changes are yet to hit, the hair removal may not prove to be a very effective one.

With advancing technology, laser treatment is suited for all skin types and tones. Even darker skin tones can now benefit from laser treatment and eliminate unwanted hair from the body.

How Many Sessions are needed?

In the opinion of most laser experts, one needs a minimum of 6 sessions for underarm hair removal.

Though many individuals may notice a huge difference early on, it is most likely that many individuals will need 4-6 sessions to see a semi-permanent hair reduction of the underarms.

To achieve the best results of laser treatment, it is essential that the sessions are scheduled at regular Intervals. On average, laser sessions need to be scheduled at a gap of 4-6 weeks.

This gives a chance for the laser to catch up on hairs that were dormant in the previous session.

Scheduling the sessions too close to too apart may cause the growth stage to pass, and then the laser will be ineffective during the other stages.

Post first session, one may only feel a5-20% difference. However, by the time 6 sessions are over, you can see a huge difference of as high as 90%.

However, the results vary from person to person. The skin tone, type, and hair color also affect how sooner or later the results are seen.

How to Care in Between Laser Treatment?

Once you get a laser session done, it is important to follow the dos and don’ts protocol prescribed by the doctor. By doing so, you can help the skin to rejuvenate faster and minimize the discomfort too.

What to avoid?

  • It is better to avoid sun exposure as much as possible for at least 2 weeks after the treatment. This will help to reduce hyperpigmentation of the skin.
  • No excessive scrubbing to the treated area will help the skin recover faster and prevent the risk of infection.
  • Say no to heat treatments like spa, hot bath, steam room, etc.
  • Avoid exercising for the next 48 hours.
  • Do not apply any makeup and other topical creams on the treated area.
  • No bleaching products or perfumed products on the underarm.
  • If blistering occurs, do not scratch as it may lead to scarring.
  • Avoid waxing, tweezing.

How to care after the treatment?

  • Drink plenty of water after the treatment.
  • Use an SPF 50+ sunscreen for the next two weeks.
  • Keep the underarm clean and dry for the next 48 hours.
  • Wearing loose-fitting clothes will prevent any friction with the underarms and keep the skin calm.
  • Apply ice-pack to reduce pain and discomfort.
  • Applying aloe vera gel will also help to reduce irritation and redness.
  • 4-5 days after the treatment, you may exfoliate the skin. By removing the dead/dry skin, you can prepare yourself for the next session and see efficient results.
  • If you see hair growth in between the sessions, you can remove it by shaving or using hair removal creams. All other methods are not allowed in between laser sessions.
  • Stop applying fake tan to your skin at least 7 days before the next session.

Caring for your skin after the laser session is as important as it is before the treatment. It is vital to give it the proper care to prevent any adverse reactions.

Why Some Areas Need More Sessions?

Every individual has a specific hair cycle which consists of 3 stages. Laser treatment works only when the hair follicle is attacked in its growth stage.

Since the growth stage lasts only a few weeks, it is important to schedule the treatment at this time. 

While the armpit may complete a cycle within 5 months, the hair growth cycle of the leg can extend up to 12 months. This is one of the reasons why some areas need more sessions while others take less time.

Hormones are another reason why some areas may take longer treatment times. For instance, areas like the chin and upper lips are more influenced by hormones than hands and legs.

Thus, such areas need more laser sessions as the hairs in these areas may be more or less active during the hormonal fluctuations.

Menopause and pregnancy can also cause the dormant hair follicles to grow back. These developments do not revert the results of laser treatment done previously.

It only means that the new hair may need additional sessions or touch-up to curb their growth further.

Why is Touch-Up Necessary?

Touch-up sessions once a year or two can help to keep your skin hair-free. There may be patches of hair that were left untreated in the initial stages that are now in their growth period.

Also, the hair that grows due to hormonal changes will need to be removed.

While some laser treatments completely eliminate hair growth, some only damage the hair follicles that slow the hair growth considerably.

Hence, you may have to inhibit the growth by opting for a touch-up session yearly.

The Key to Underarm Laser Hair Removal Success

Say goodbye to painful waxing, shaving, and ingrown hair with laser treatment. Though not a completely pain-free process, laser hair treatment can succeed if you consult a certified and professional dermatologist.

Make sure you ask all the questions and clear all the doubts before the treatment is commenced. Your doctor will also do a complete assessment to determine whether you are an ideal candidate for the treatment.

Your medical history, skin type, tone, and hair color also play a major role in laser hair treatment success. It is known to work best on fair skin and dark hair.

The Cost Factor

Every clinic offers a different price package and a combination of offers to the clients. The cost for treating underarm with laser ranges around $200-$300.

Depending upon the body part, laser cost may increase or decrease from one cosmetic clinic to another.

Though laser treatment is not one of the cheapest options, it is certainly an investment of a lifetime.

If you put together the cost incurred in other hair removal methods, then laser treatment is surely the beneficial one as its result is spread over a long time.

If you are opting to treat multiple body parts, you can avail of special offers.


Laser hair removal is the best option to get rid of unwanted body hair. It works more efficiently than temporary methods and destroys the follicles at their roots.

The best part about laser treatment is that it is safe and effective. Though you have to shell out extra money, it is worth the result that you get.

Underarm hair can be a source of embarrassment for many, and getting rid of them can give you the desired freedom. You no more have to wait for the hair to grow and can opt for shaving as often as you want.

To get the best results for your underarms from the laser treatment, it is important that you choose the right clinic and the most proficient dermatologist. 

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