Yag Reju Laser Rejuvenation — Smoother Underarms and Reduced Bumps

Yag Reju Laser Rejuvenation is a treatment designed to improve underarm skin quality. It helps reduce keratosis pilaris–like bumps, smooth uneven texture, and stimulate collagen production. For individuals who feel self-conscious about rough or uneven underarm skin—especially when wearing sleeveless clothing — Yag Reju is an effective, targeted option.
In this article, we explain what Yag Reju is, what it treats, who it’s recommended for, how many sessions are needed, its key benefits, precautions, pricing, and aftercare. We also outline how to choose a safe and reliable clinic for Yag Reju.
Table of Content : Yag Reju
What Is Yag Reju Laser Rejuvenation?

Yag Reju Laser Rejuvenation, also known as Nd:YAG Rejuvenation, uses a 1,064 nm wavelength delivered through the Light B Evo Long Pulse Nd:YAG platform.
Although it utilizes the same device as underarm laser hair removal, Yag Reju operates in a different mode with adjusted laser settings, allowing it to target skin rejuvenation rather than hair follicles.
How Yag Reju Laser Rejuvenation Works
The YAG Reju (Nd:YAG Rejuvenation) mode delivers energy that is absorbed by water in the skin, gradually increasing dermal temperature. This wavelength penetrates deeply into the tissue, making it highly effective for improving underarm texture, reducing keratosis pilaris–type bumps, stimulating collagen, and promoting smoother, healthier-looking underarm skin.
It does not destroy hair follicles like laser hair removal — its mechanism focuses entirely on skin rejuvenation.
Differences Between Yag Reju and Underarm Laser Hair Removal
Although both Yag Reju and underarm laser hair removal use the Light B Evo Long Pulse Nd:YAG, they differ in treatment mode, target, and purpose.
- Underarm Laser Hair Removal: Uses laser energy to target the hair follicle, causing follicular injury and gradually reducing regrowth. When done consistently (5–8 sessions depending on the individual), it supports long-term hair reduction.
- Yag Reju Laser Rejuvenation: Uses the Rejuvenation mode to deliver energy into the skin layers—not the hair follicle. It focuses on improving texture, reducing bumps, stimulating collagen, and enhancing smoothness and skin quality.
In simple terms:
- Laser hair removal = reduces hair
- Yag Reju = rejuvenates skin
When performed together, the results complement each other—providing both smoother skin and long-term hair reduction.
Who Is Yag Reju Laser Rejuvenation Suitable For?

Yag Reju is ideal for individuals who want smoother, firmer, and brighter underarm skin, especially those who:
- Have keratosis pilaris–like bumps or ingrown hairs from shaving or plucking
- Have loose or uneven underarm skin and want smoother texture
- Are already receiving underarm laser hair removal and want to improve skin quality at the same time
- Want to stimulate collagen beneath the underarm area for healthier, firmer skin
- Have finer, lighter hair—Yag Reju tends to deliver better results in these cases
- Want to feel more confident wearing sleeveless clothing and prefer smoother underarms
Who Should Avoid Yag Reju Laser Rejuvenation?
Although Yag Reju is generally safe, certain groups should avoid the treatment or consult a doctor beforehand to minimize risks and ensure proper care:
- Individuals with active skin conditions in the underarm area such as dermatitis, fungal infections, psoriasis, or bacterial infections
- Individuals with open wounds, abrasions, or irritated skin — treatment should be postponed until the skin has healed
- Pregnant or breastfeeding women—while not directly harmful, postponing treatment is recommended for maximum safety
- Individuals who recently had other procedures in the underarm area such as underarm botulinum toxin injections should wait at least two weeks, as heat may reduce the effectiveness of the treatment
- Individuals with a history of severe laser sensitivity or abnormal photosensitivity
What Does Yag Reju Laser Rejuvenation Help With?

Yag Reju Laser Rejuvenation is designed specifically for underarm skin concerns. Many individuals experience rough texture, keratosis pilaris–like bumps, or dull underarm skin that affects their confidence. Yag Reju helps address various underarm concerns, including:
- Reducing keratosis pilaris–type bumps and smoothing rough underarm texture caused by repeated plucking or shaving
- Stimulating new collagen production to improve firmness and refine the skin
- Smoothing superficial skin layers for a softer touch and greater confidence when wearing sleeveless clothing
- Enhancing overall skin quality when combined with underarm laser hair removal, resulting in longer-lasting smoothness
Can Yag Reju Treat Dark Underarms?

Yag Reju does not directly lighten pigmentation or treat dark underarms. Its primary function is to reduce keratosis pilaris–like bumps and improve texture.
For patients concerned about dark underarms or hyperpigmentation, the YAG Reju Program — which combines Yag Reju Laser Rejuvenation with Made Collagen injections — is recommended to support brightening and improve overall skin clarity.
YAG Reju Program — “Laser Rejuvenation + Made Collagen for Smoother, Brighter Underarms”

For those concerned about both bumps and dark underarms, the YAG Reju Program at V Square Clinic combines laser rejuvenation with a specialized Made Collagen formula to help improve underarm skin at both surface and deeper layers.
Laser Rejuvenation (Yag Reju)
- Smooths superficial skin layers
- Reduces keratosis pilaris–like bumps and improves texture
- Stimulates collagen for firmer, healthier-looking skin
Made Collagen Injection
- Rejuvenates deeper skin layers
- Helps regulate melanin production
- Gradually improves brightness for naturally clearer underarm skin
The combination of Yag Reju + Made Collagen effectively treats both uneven texture and dark pigmentation. There are two program options patients can choose from: Duo Bright and Duo Extra Bright.
Differences Between YAG Reju Program Duo Bright and Duo Extra Bright

The YAG Reju Program combines underarm laser rejuvenation with Made Collagen injections to enhance skin restoration and brighten the underarm area. There are two program options, depending on individual goals:
Duo Bright
- Suitable for individuals who want a gradual brightening effect
- Helps restore skin that has become dull or darkened over time
Duo Extra Bright
- Designed for those who want a faster brightening effect
- Uses a more intensive formula to regulate melanin more quickly and deliver faster visible improvement
Choosing the most suitable program depends on each individual’s goals and level of concern. Our doctors will assess the underarm area and recommend the most suitable option to ensure safe, effective results.
Benefits and Precautions of Yag Reju Laser Rejuvenation

Yag Reju Laser Rejuvenation offers several benefits along with important considerations to keep in mind before treatment.
Benefits of Yag Reju Laser Rejuvenation
- Helps reduce keratosis pilaris–like bumps caused by shaving or plucking, improving smoothness and overall underarm texture
- Stimulates collagen production, enhancing firmness and promoting healthier-looking underarm skin
- Provides fast results, is non-painful, and requires no downtime; patients can return to daily activities immediately
- Can be combined with Made Collagen injections and underarm laser hair removal for enhanced results — both smoother skin and long-term hair reduction
- Safe and associated with minimal side effects when performed by trained professionals using standardized laser technology
Precautions for Yag Reju Laser Rejuvenation
- Does not directly treat dark underarms; individuals with hyperpigmentation may benefit more from combining Yag Reju with Made Collagen injections (Yag Reju Program)
- Certain conditions must be avoided, such as active skin diseases, infections, or pregnancy
- Results vary by individual; thicker underarm tissue, deeper folds, or frequent plucking habits may result in slower improvement
- Should be performed by experienced practitioners who can customize laser energy settings to ensure safe and effective results
How Many Yag Reju Sessions Are Needed to See Results?
Yag Reju Laser Rejuvenation is typically recommended as a series of at least five sessions, spaced every four weeks, to allow the skin to rebuild collagen and fully recover between treatments.
A general expected timeline is as follows:
- After 3 sessions: Mild improvement in smoothness, although results may not be very noticeable yet
- After 5 sessions: Clearer reduction in bumps, with the underarm skin appearing smoother and more refined
Is Yag Reju Laser Rejuvenation Safe?
Yag Reju Laser Rejuvenation is considered safe because it uses targeted laser energy to rejuvenate the skin without damaging the surrounding tissue. Treatments are performed under the supervision of trained practitioners specializing in laser procedures.
Why is Yag Reju considered safe?
- The Rejuvenation mode focuses on collagen stimulation rather than exfoliating or thinning the skin
- Side effects are minimal; patients may feel mild warmth but no stinging or pain, and no downtime is required
- Normal activities can be resumed immediately, with the exception of avoiding intense heat, sauna, and exfoliating acids (AHA/BHA) in the early period
- Some groups — such as individuals with active skin diseases, infections, or pregnancy — should consult a doctor before treatment to ensure maximum safety
Possible Side Effects After Yag Reju Laser Rejuvenation
Yag Reju Laser Rejuvenation is generally safe with minimal side effects. However, some individuals may experience mild, temporary symptoms such as:
- Mild redness in the treated area, usually resolving within 1–2 hours
- A warm sensation on the skin immediately after treatment, without stinging or pain
- Slight dryness or tightness; applying a gentle moisturizer can help improve comfort
Symptoms that require medical attention: If significant redness, stinging, itching, or inflammation occurs, patients should contact a doctor promptly.
How to Prepare Before Yag Reju Laser Rejuvenation

Preparation for Yag Reju is simple. We recommend that patients follow the guidelines below:
- Avoid plucking, shaving, or waxing underarm hair for at least 3–5 days prior to treatment to reduce irritation
- Avoid deodorants or strong chemical-based products for 3–5 days before treatment
- Avoid activities that may irritate the skin, such as swimming in chlorinated pools or using saunas
- Wear loose, breathable clothing on the day of the procedure to minimize friction
- Inform the doctor if you have any skin conditions or are taking medications that affect pigmentation or photosensitivity
Step-by-Step Yag Reju Laser Rejuvenation Procedure

The Yag Reju procedure is quick, taking approximately 10–15 minutes per session, and typically follows these steps:
- A practitioner assesses the underarm area, checking for bumps and folds to determine appropriate laser settings
- The underarm skin is cleansed to remove sweat, deodorant residue, and impurities that may interfere with laser performance
- Laser treatment then begins, patients typically feel only a warm sensation without stinging or pain. No numbing cream or cooling device is needed
- After the session, patients can return home and resume normal activities immediately
- There are no wounds or downtime, and aftercare is simple — avoid intense heat or saunas, and apply a gentle moisturizer as needed
Aftercare Instructions for Yag Reju Laser Rejuvenation

After Yag Reju, patients can immediately resume daily activities. To ensure optimal results and support skin recovery, the following aftercare guidelines are recommended:
For the first 2–3 days:
- Avoid activities involving high heat, such as saunas, steam rooms, or hot yoga
- Avoid deodorants or exfoliating products
For the first week:
- Avoid scratching, scrubbing, or exfoliating the underarm area
- Avoid swimming in pools or the sea, as chlorine and saltwater may cause irritation
Other recommendations:
- Avoid direct sunlight, and apply sunscreen if the area will be exposed
- Use a gentle moisturizer to maintain hydration and reduce dryness
How Long Do Yag Reju Results Last?
The duration of results from Yag Reju varies depending on each individual’s skin condition and aftercare.
- In general: With consistent treatment of at least 5 sessions, improvements in smoothness and reduction of keratosis pilaris–like bumps can last for several months.
- Frequent friction: New hair growth, shaving, or plucking may cause bumps to return more quickly.
- Thick underarm tissue or deep folds: These conditions may lead to faster recurrence of roughness, making periodic maintenance sessions important.
To maintain long-lasting results, we recommend repeating Yag Reju every 4 weeks, and combining it with underarm laser hair removal to reduce friction — a major cause of recurrent bumps.
Yag Reju Results — Before & After at V Square Clinic
Visible improvements can typically be seen within five sessions of Yag Reju Laser Rejuvenation. Patients often notice smoother texture, fewer bumps, and gradually brighter underarm skin.
Below are examples of underarm skin transformation before and after treatment.
Before–After Comparison: YAG Reju (5 Sessions)


Yag Reju Laser Rejuvenation — Affordable Pricing at V Square Clinic
Yag Reju Laser Rejuvenation starts at 890 THB, available as both single sessions and course packages. Each program is designed to improve keratosis pilaris–like bumps and dark underarms, delivering visible results with consistent treatment.
Underarm Laser Hair Removal Pricing
Our Cool Yag 1064 underarm laser hair removal uses the Long Pulse Nd:YAG Light B Evo with Cryo 7 cooling system. Pricing starts at 700 THB per session.
Interested in YAG Reju Programs at V Square Clinic?
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How to Choose a Clinic for Yag Reju Laser Rejuvenation
Choosing a clinic for Yag Reju should not be based on price alone. Key factors include:
- Use of certified Nd:YAG Long Pulse laser technology for safe and effective results
- Experienced practitioners who can adjust laser energy to suit individual skin concerns
- Proper hygiene standards, sterile equipment, and a clean procedure room
- Verified reviews and real patient results that confirm the clinic’s credibility
- Reasonable pricing and promotions — not suspiciously cheap treatments that may compromise quality
Why Choose V Square Clinic for Yag Reju Laser Rejuvenation?
Expert Practitioners, Precision Treatment, and Great Value**
At V Square Clinic, we focus on both outcomes and patient value. Key reasons for choosing our clinic for Yag Reju include:
- Every session is performed by trained practitioners, not general staff, so each shot is delivered with accuracy
- Treatments are done thoroughly — full energy, consistent technique, and no unnecessary stretching of courses or reduction in shots
- Comfortable, private treatment rooms to ensure a relaxed experience
- Fresh disposable tools for every visit, including razors, sheets, and treatment garments, keeping everything clean and hygienic
- Honest, pressure-free service with clear pricing and recommendations based on what’s genuinely suitable for you
These are the reasons why Yag Reju at V Square Clinic delivers real, noticeable improvement — helping you feel confident and comfortable with your underarm skin again.
Frequently Asked Questions About Yag Reju Laser Rejuvenation (FAQ)
Does Yag Reju hurt?
No. Patients typically feel only a warm sensation during treatment. Numbing cream and cooling devices are not required.
How many sessions are needed to see results?
On average, at least five sessions, spaced every four weeks, are recommended to allow ongoing collagen stimulation and skin smoothing.
Does Yag Reju make the underarms whiter?
Not directly. Yag Reju improves texture and reduces bumps. For pigmentation concerns, the Yag Reju Program (Laser Rejuvenation + Made Collagen) provides more noticeable brightening.
If I am already doing underarm laser hair removal, should I add Yag Reju?
Yes. Laser hair removal targets hair, while Yag Reju focuses on skin texture. Combining both treatments enhances smoothness and overall skin appearance.
Does Yag Reju help reduce body odor or sweating?
Yag Reju is not designed to treat odor or sweat. However, smoother skin and smaller pores can reduce bacterial buildup, which may lessen odor for some individuals.
How many times per year should I maintain Yag Reju?
Most patients maintain results with 1–2 courses per year after completing the first five sessions. Maintenance needs vary depending on habits like shaving, plucking, and friction.
Summary : Is Yag Reju Laser Rejuvenation Worth It?
Yag Reju Laser Rejuvenation is an excellent option for individuals looking to smooth underarm skin and reduce keratosis pilaris–like bumps. It is comfortable, effective, and can be combined with laser hair removal or Made Collagen injections for enhanced results.
If you are unsure whether Yag Reju is right for your underarm concerns, the medical team at V Square Clinic can assess your skin and recommend the most suitable approach.
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