Pyeongtaek Station hair removal FAQs: laser frequency and intervals
From how it works to sessions, intervals, and devices.


Beard that quickly grows back even after shaving every morning, arm and leg hair that becomes bothersome as summer approaches, and skin sensitized by frequent shaving are common topics in hair removal consultations at Pyeongtaek Station. Not only men who desire a clean appearance but also women looking into laser hair removal for skin care purposes have increased. To get straight to the point, laser hair removal is not a procedure with a fixed number of sessions, but rather a treatment performed in multiple sessions with intervals, tailored to the hair growth cycle, area, and skin type.
We have compiled frequently asked questions from consultations and organized them in the following order: reasons why hair grows back, laser principles, differences by area, equipment, consultation checklist, and post-treatment care.
Reasons Why Hair Keeps Growing Back Even After Shaving
Hair grows by repeating the anagen (growth), catagen (transition), and telogen (resting) phases, and not all hairs are in the same phase at the same time. The hair visible on the surface is only a portion, and there are always hairs beneath the skin waiting for their turn. This is why not all hairs react the same way to a single laser treatment.
Many people, in particular, ask why hair grows back after just one session. Generally, it's not that the treatment was insufficient, but rather that hairs that were in the resting phase at the time grew back later.
For these reasons, laser hair removal is performed in multiple sessions with intervals, and the number of sessions required varies depending on the hair condition. The reason for considering the growth cycle first is explained in more detail in the article on the relationship between laser hair removal and the growth cycle.
How Laser Works on Hair
Laser hair removal uses energy that selectively reacts to the melanin pigment in hair follicles. When the hair pigment absorbs the energy, heat is generated, and that heat acts on the hair follicle to help reduce hair growth.

Dark and thick hair tends to react well due to its high pigment content, while fine and light hair requires a more delicate approach. This is why the reaction differs from one area to another, even on the same person.
Differences by Area
Hair thickness, density, and skin thickness vary by area, so the approach to hair removal also differs. The following are general examples to aid understanding, and the actual plan is determined after consultation.
- Facial Hair, Thick and dense, but the skin is thin, requiring precise control.
- Underarms, Tend to be thick, and we also check for hyperpigmentation.
- Arms and Legs, Significant variation by area and large surface area, so interval planning is important.
- Fine Facial Hair, Fine and light, so the reaction may be slow, requiring careful judgment.
If only the number of sessions is emphasized without considering the characteristics of each area, satisfaction is likely to decrease, so in the first consultation, we start by asking which area causes the most discomfort.
Equipment Selection
There are various types of laser hair removal equipment, and SmoothCool is one of them that may be considered. Each device has different energy delivery methods, cooling systems, and treatment speeds, so the appropriate equipment varies depending on skin type and hair condition.

More important than the equipment name is a plan tailored to your skin condition and hair removal goals. Even with the same equipment, the approach differs depending on energy intensity, treatment area, and session intervals. The procedure method and cost will be provided after consultation, and treatment items can also be viewed on the Laser Hair Removal Information Page.
When a Hair Removal Consultation at Pyeongtaek Station is Needed

If several of the following apply to you, it may be a good idea to check your condition.
- When frequent shaving is bothersome
- When irritation recurs after shaving
- When ingrown hairs frequently occur
- When you have a lot of exercise or outdoor activities
- When you desire a clean skin appearance
During consultation, we don't just look at the amount of hair, but also check the following:
- Hair Thickness, Thick hair and fine hair react differently.
- Skin Type, Energy settings are adjusted according to skin tone.
- Treatment Area, Face, legs, and underarms have different characteristics and thickness.
- Existing Skin Condition, We check for inflammation, irritation, or skin diseases.
- Lifestyle, We consider exercise levels, outdoor activities, and shaving frequency.
Laser hair removal has significant individual differences, so it is usually performed in multiple sessions at intervals of several weeks. The reason why both hair and skin need to be considered is further explained in the article on prioritizing skin over hair.
Post-Treatment Care
The skin may be temporarily sensitive after laser hair removal, so we recommend the following:
- Moisturize generously.
- Avoid strong UV rays.
- Reduce friction.
- Be cautious with hot saunas and jjimjilbangs (Korean bathhouses).
- Monitor skin changes.

The necessary care varies depending on skin characteristics. Office workers who shave frequently, individuals with high exercise levels, and those with sensitive skin have different concerns, so a consultation that thoroughly discusses lifestyle patterns and goals is important. If you have important schedules such as photo shoots or events, it is best to plan ahead by considering the timing.
Frequently Asked Questions
Is one session enough? Due to the growth cycle, it is often performed in multiple sessions. Do many men get it? Interest among men looking to tidy up their beard, jawline, and neck has increased. For differences in the number of sessions by area, please refer to the article on the number of sessions for male beard hair removal. Should it only be done in summer? It can be planned regardless of the season, and consistent schedule management is more important. Is it okay for sensitive skin? We assess whether to proceed after checking your current skin condition.

If you are considering hair removal at Pyeongtaek Station, it is better to consider your skin condition, hair characteristics, and lifestyle habits together, rather than focusing solely on removing hair. Methods including laser hair removal and SmoothCool vary in application direction for each person, and the final decision should be made after a direct examination during an in-person consultation. If you are curious about your skin and hair condition, feel free to inquire via Chat Consultation Shortcut [blocked].

This article was reviewed by Chief Director Park Min-soo (7th President of the Korean Society for Laser, Dermatology and Trichology, Adjunct Professor at Hanyang University College of Medicine) and Chief Director Lee Yu-seok (Vice President of the Korean Society for Laser, Dermatology and Trichology, 20 years of clinical experience). Last reviewed 2026-11-05.
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From how it works to sessions, intervals, and devices.
