Hello. I am Yim Young-su, the chief director of Troy Plastic Surgery.
Recently, as a medical professional consulting with patients, I have often come across concerns about skin care, especially the pain and skin irritation associated with underarm hair removal.

A discussion of laser hair removal, excerpted from the Troy website
The underarm area has sensitive skin and is highly sensitive to pain, so many people hesitate to undergo hair removal procedures or feel burdened by them.
Today, as a dermatologist specializing in aesthetic skin care, I will provide objective and in-depth information about Clarity II laser hair removal, which is regarded as one of the most effective and up-to-date solutions for this concern.
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Underarm hair removal: why is pain a problem?
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What are the features of the Clarity II laser?
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Why Clarity II causes less pain than conventional devices
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Underarm hair removal: how long do Clarity II results last?
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Precautions and care after Clarity II underarm hair removal

Image of the Clarity II device
- Underarm hair removal: why is pain a problem?
The underarm area has thin skin and developed nerves, so pain is felt more easily.
With conventional laser hair removal methods, strong laser energy is mainly used to destroy the melanin pigment in the hair follicles, so it has been difficult to avoid pain or discomfort.
For this reason, for those who want underarm hair removal, it is very important to find a safer and less painful yet effective method.
- What are the features of the Clarity II laser?
Clarity II is an advanced dual-laser device that uses two laser wavelengths: Alexandrite (755 nm) and Nd:YAG (1064 nm).
It is recognized as a highly ideal device for laser hair removal in dermatology and plastic surgery,
and it enables optimized treatment according to skin type and color, as well as hair thickness.
Advantages of dual wavelengths
• 755 nm Alexandrite wavelength
Effective for people with lighter skin and darker hair, it penetrates deep into the hair follicle to deliver strong hair removal results.
• 1064 nm Nd:YAG wavelength
It can be used safely even on darker skin tones, minimizes damage to surrounding skin, and allows safe treatment even on sensitive skin.

Image for better understanding, excerpted from the Troy website
- Why Clarity II causes less pain than conventional devices
The part many people are most curious about is pain. Clarity II is equipped with features specifically designed to reduce pain.
① Cooling system
Clarity II is equipped with an intelligent cooling system.
While the laser is being delivered, cooling gas is also sprayed, instantly lowering the skin surface temperature and minimizing pain and skin damage.

Clarity cooling system, excerpted from the Troy website
② IntelliTrak™ system
The automated IntelliTrak™ function helps the laser be delivered evenly across the skin so that excessive thermal energy does not concentrate in a specific area.
Thanks to this, irritation and pain are significantly reduced, and the procedure can be completed more quickly.

Image to help understand Clarity II's IntelliTrak
③ High precision and fast speed
Clarity II allows flexible selection of both large and small spot sizes, making it possible to treat delicate areas such as the underarms quickly and accurately.
A procedure that finishes quickly is a big help in reducing pain.

Image to help understand Clarity II's spot sizes
- Underarm hair removal: how long do Clarity II results last?
One of the advantages of Clarity II laser hair removal is its high durability after treatment.
In general, after one treatment and through 3 to 6 treatments, more than 80–90% of the hair is removed.
After sufficient treatment, the regrowth rate of hair decreases significantly and the hair becomes finer, allowing the skin to remain smooth and clean for a long period of time.

Image to help understanding, from the official Clarity 2 promotional video
- Precautions and care after Clarity II underarm hair removal
The success of underarm hair removal also depends on post-treatment care.
In particular, after Clarity II hair removal, following the points below can lead to even more satisfying results.

Clarity 2, check the post-treatment checklist!
• Avoid strong irritation immediately after treatment and keep the underarm area clean.
• Apply sunscreen lightly to the underarm area as well to protect the skin.
• Mild redness or swelling may appear, but in most cases it naturally subsides within 1 to 2 days.
- Checkpoints recommended by a plastic surgery specialist when choosing Clarity II treatment
When choosing underarm hair removal, be sure to check the following points.

Excerpt from the official Clarity II brochure
• Make sure clearly that the device being used is a genuine Clarity II laser.
• Check whether the medical staff performing the procedure have sufficient laser treatment experience and expertise.
• It is recommended to choose a clinic that systematically supports skin care after the procedure.
Final advice from a medical professional
Underarm hair removal is not only a cosmetic matter but also one related to hygiene and skin health.
By considering both safety and effectiveness, choosing an advanced device like Clarity II that minimizes pain can lead to satisfying results.

Laser hair removal
If you are still worried or have questions, I encourage you not to worry alone and to visit the clinic with a relaxed mind and consult a specialist thoroughly.
I hope this information is of even a small help to those considering underarm hair removal.
Please feel free to contact us anytime.
Thank you.
Yim Young-su, Chief Director of Troy Plastic Surgery
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