PHD Dermatology's Beauty STORY
Pi Bu-ho Kwon In-ho
Repot Laser vs. Ruby Laser: Revealing the Tier 1 Treatment for Dark Spots.
[ For those curious about the differences between the Repot laser and the Ruby laser, which are commonly used in melasma treatment, I will explain how they differ and even which types of melasma each device is more effective for. ]
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Are you worried about melasma, blemishes, freckles, lentigines, pigmentation, Ota spots, or colored tattoos?
A powerful red light shining like a jewel! Experience the powerful light of the Ruby Laser.
The Ruby Q Laser
To whom would you entrust your precious youth? From melasma and blemishes to stubborn pigmentation disorders! All-in-one care
Over 20 years of experience as your personal dermatologist. A custom The Ruby Q laser just for you.
Everyone's skin is unique, and personalized treatment is paramount for pigmentation therapy. The key lies in selecting the appropriate laser and determining the optimal energy level based on an accurate diagnosis of the pigmentation. At PHD Dermatology, a medical team of board-certified dermatologists holding medical Ph.D.s from Seoul National University performs customized procedures tailored specifically to your skin type, age, and gender.
Directly performed by a Ph.D. in Medicine, Dermatologist, Seoul National University
Over 20 years of extensive procedure experience
1:1 customized plan based on skin type
Customized treatment based on skin layer, skin type, and cause of pigmentation
Q-Switch The Ruby Q Laser selected by PHD Dermatology
When light is absorbed by a type of gemstone called a ruby, a powerful red light is emitted, and a laser that treats pigmentation disorders by irradiating this light onto the skin is called a ruby laser. Using 694nm light, which has a melanin absorption rate more than 10 times higher than existing pigment lasers, it can concentrate energy only on the pigment without damaging surrounding blood vessels or skin tissue, allowing it to effectively remove almost all skin pigments, including blemishes, tattoos, age spots, nevus of Ota, and melasma.
freckles
Freckles & blemishes
Ota nevus
Intractable pigmented lesions
Improvement of pigmentation
Color tattoo removal
What is a Q-switch?
Quality Switched is an abbreviation for a device designed to emit high-energy laser light for an extremely short duration, destroying only abnormal melanin pigments while minimizing damage to normal tissues.
Why 'The Ruby' is chosen for the treatment of pigmented skin diseases
The Ruby Q laser, which has the highest wavelength for melanin selectivity.
The 694nm wavelength of The Ruby Q Laser has high melanin selectivity. On the other hand, because the absorption rate of oxidized hemoglobin is low, the probability of damage to blood vessels and surrounding normal cells is much lower.
What is melanin selectivity? The targets of general lasers are melanin, hemoglobin, and water. Melanin selectivity refers to the degree to which only melanocytes are selectively destroyed without damaging surrounding normal blood vessels and cells. The 694-wavelength ruby laser beam effectively and selectively removes epidermal and dermal pigments without the loss of hemoglobin or water.
In terms of light wavelength absorption characteristics, it can be seen that near the wavelength of the ruby laser light (694 nm), absorption by oxidized hemoglobin is very low, while absorption by melanin is at a high level.
Alexander Light (755nm), YAG (1064nm) wavelengths
Because melanin absorption is lower than that of ruby, it is difficult to absorb into lesions with thin melanin.
Since these wavelengths are also absorbed by oxidized hemoglobin, they can damage blood vessels and cause bleeding.
VS
The Ruby Q Laser
In terms of wavelength selection, the wavelength of ruby is the center of the "Optical Window," and because it perfectly aligns with the first principle of Selective Photothermolysis—that is, laser irradiation that irradiates only tissues of a specific color—it most selectively destroys melanin granules.
Even pale lesions can exhibit sensitive reactivity while minimizing damage to surrounding tissues.
High efficacy and penetrative power (Q-switch mode) for deep pigmented disorders
The light energy of the ruby laser is selectively absorbed by melanin granules in the tissue and converted into heat. At this time, since the pulse width of 20 nsec of the Q-switched mode of The Ruby nano_Q is shorter than the thermal relaxation time of 50 nsec of the melanin granules, the melanin granules are destroyed before they can dissipate heat to the surroundings.
The Ruby nano_Q succeeded in making the irradiation time 5 nsec shorter than the 25 nsec specification designed by Rox. R. Anderson and others in the 1990s. The shorter the irradiation time is compared to the thermal relaxation time of melanin granules, the less heat is released to surrounding tissues, thereby increasing the selectivity of the treatment more efficiently.
POINT 01
It has a very high absorption rate for melanin, making it possible to effectively remove melanin even from the dermis layer.
POINT 02
Significantly lower vascular absorption compared to other laser wavelengths, resulting in a lower probability of damage to normal cells.
POINT 03
It has the lowest moisture absorption, making melanin treatment the most effective.
Beam quality is crucial for lasers! The Ruby Q laser offers very stable beam quality.
The Ruby Q Laser
- Top hat profile - Precise and uniform energy delivery to the treatment site - Minimization of side effects ↓
General Ruby Laser Energy Distribution
- Uneven energy delivery to the treatment site (energy concentration in the center of the spot) - High risk of side effects
In addition, while the beam is being irradiated, the energy is evenly distributed over the entire area of the beam, and the beam reaches the entire area without any overlapping or untouched parts in the shape of a hexagon.
The Ruby Q Laser
During The Ruby Q laser treatment, a hexagonal beam was implemented to ensure that energy does not overlap or miss any areas when the laser is applied.
Standard ruby laser
In the case of a standard ruby laser, the circular beam causes energy to overlap or be concentrated in only one spot, resulting in uneven treatment outcomes.
Pigmentation treatment is a medical procedure, not a cosmetic one.
From a skin histological perspective, epidermal pigmentations, such as lentigines (blemishes, age spots, etc.) and freckles, are concentrated in the basal layer, the lowest layer of the epidermis. In contrast, dermal pigmentations, such as melasma and nevus of Ota, are located in the deeper dermis. Furthermore, even pigments located in the same area respond significantly to treatment, requiring highly specialized knowledge to diagnose pigmented lesions. Safe treatment is ensured by tailoring the appropriate approach to the location of the lesion and the characteristics of the melanocytes.
Distribution locations of major pigment disorders
Epidermal pigmentation: freckles, blemishes, solar lentigo, seborrheic keratosis (age spots), etc.
Dermal pigmentation: Melasma, ABNOM (Acquired Bilateral Nevus of Ota), Post-inflammatory hyperpigmentation, etc.
Premium Correction Solution for Difficult-to-Treat Pigmentation Disorders
At PHD Dermatology, medical staff with a deep understanding of skin layers diagnose the type, depth, and cause of pigmentation, allowing you to expect everything from effective pigmentation treatment to prevention of recurrence through intensive treatment tailored to your specific condition.
Treatable subjects
black checkers
freckles
Bilateral nevus of Ota (ABNOM)
Personalized treatment is paramount in pigmentation therapy. Precise analysis and treatment prevent side effects and recurrence.
Even if the visible size is the same, the depth within the skin varies, so combination treatment is necessary.
We combine lasers according to skin type and treatment goals to effectively remove melanin pigments rising from deep within the skin. PHD Dermatology provides comprehensive treatment for pigments accumulated in the layers of the skin, from the surface to the depths.
Use of laser equipment tailored to each individual based on skin type following a precise diagnosis.
After precisely diagnosing the type, depth, cause, and symptoms of the pigmentation, we treat various pigmented lesions using appropriate laser equipment.
Possessing meticulously selected equipment with proven safety and efficiency
It is difficult to treat all skin conditions with a single device. PHD Dermatology is equipped with laser equipment specialized for pigmentation, enabling us to treat various forms of pigment disorders professionally and with high quality.
GentleMaxImprovement of various lesions with dual wavelengths of 755nm (Alexandrite) and 1064nm (Nd:YAG)
Piccolo PremiumEffectively improves various pigments by irradiating high energy of one trillionth of a second.
CO2Non-selective destruction of moisture-containing tissue using a gas laser mixed with CO2 gas
RiptUniform treatment up to the depth of the lesion, regardless of the amount of pigment within the lesion.
Ellipse I2PLReduces unnecessary skin damage and implements a rectangular pulse structure, which is an ideal light dispersion structure.
If you have seen no improvement or your condition has actually worsened, you should choose PHD Dermatology, which effectively improves whitening, melasma, and blemishes through customized treatments tailored to your individual skin condition for various pigmentation disorders. Experience PHD Dermatology's pigmentation treatment, which naturally lifts the veil of time to restore your natural appearance.
1:1 Custom Skin Solution
Meticulous care, highly accurate diagnosis, thorough follow-up care
Our medical team, with over 20 years of experience and know-how, understands the skin better than anyone else and handles lasers expertly to provide premium medical services in a private space.
Confidence in your skin! PHD is a medical team of medical doctors who hold a Doctor of Medicine degree among dermatologists.
At PHD Dermatology, we provide customized treatments tailored to each individual's skin, ranging from diagnosis to laser procedures, through dedicated care by medical doctors from Seoul National University and board-certified dermatologists from Seoul National University Hospital. You can receive treatment not only for the removal of melasma and blemishes but also for stubborn pigmentation issues that are difficult to treat.
Expect a synergistic effect through the cross-treatment of various laser devices tailored to the characteristics of each pigmentation disorder, rather than a single treatment.
Since pigmentation disorders that appear similar to the naked eye differ not only in shape but also in the depth of the skin layers and the extent of their distribution, it is advisable to employ a combination of treatments tailored to individual skin characteristics rather than relying on a single method. At PHD Dermatology, we identify the skin types of Asians, who are prone to recurrence, and combine appropriate treatment and procedural methods.
Does increasing the laser intensity improve the effect? It is necessary to proceed with appropriate treatment and procedures tailored to each individual's pigmentation type.
While treating with high laser intensity may resolve the single concern of pigmentation, it can ultimately lead to secondary conditions as the skin barrier weakens. Therefore, pigmentation treatment must combine laser therapy that precisely targets and removes only the pigment with therapies that protect the skin barrier. At PHD Dermatology, we strive to go a step further than simple pigmentation treatment to minimize the likelihood of lesions recurring.
Receive personalized care in a private space.
Receive personalized treatment consultation in a clean and private treatment space that is regularly disinfected.
Precautions Before and After Pigmentation Treatment
We provide guidance on precautions to observe before and after the procedure for effective treatment and satisfactory results.
Wait for the scab that forms after the procedure to fall off naturally, and avoid rubbing it excessively.
You may apply makeup, wash your face, and take a light shower after the procedure, but please refrain from drinking alcohol, using saunas, steam rooms, or taking hot baths for one week.
Dryness or flaking is a normal reaction to heat and can be prevented with moisturizing creams, etc.
The lesion may appear darker for 2 to 3 days and gradually fade.
Redness and peeling may occur after the procedure, and the severity may vary depending on the individual.
