Procedure guides and skincare notes.
The Excel V laser uses two different wavelengths of light, each absorbed selectively by blood vessels or pigment. Here's a plain-language look at why redness and spots can be treated with the same device, and how it actually works in practice.
By Dr. Kim
If your face turns red and hot for no clear reason, again and again, it could be rosacea, a condition where facial blood vessels have become oversensitive. Here's why those vessels react so strongly, why the redness lingers, and how vascular lasers actually fix it.
By Dr. Lee
Laser toning fires low energy again and again instead of one strong blast, and there is a real reason for that. Here is the pigment-breakdown science behind it, how overtreatment can trigger side effects like hypopigmentation, and how to keep session spacing safe.
By Dr. Lee
That brown mark that lingers long after a pimple heals has a name: post-inflammatory hyperpigmentation. Here's why inflammation triggers melanin, why the mark fades only slowly, and why sunscreen matters so much, explained through simple, everyday comparisons.
By Dr. Kim
Vbeam is a vascular laser that uses a specific wavelength tuned to hemoglobin, the pigment in blood, to coagulate dilated capillaries without harming the surrounding skin. This column breaks down why that wavelength zeroes in on blood vessels, along with the bruising, downtime, and sessions it takes to see results.
By Dr. Lee
Dark circles fall into three categories, vascular, pigmented, and structural, and the reason your under-eyes look dark differs for each. Pick a treatment that doesn't match your type, and you likely won't see results.
By Dr. Kim
Café au lait spots, the light tan patches named for coffee with milk, form because a small patch of pigment cells is working overtime. Laser breaks up the pigment that has piled up, but it does not switch off the cells making it, which is why recurrence is so common. Here is the biology behind it, why results vary so much from person to person, and what a realistic outcome actually looks like.
By Dr. Kim
A look at stacking treatment for melasma that toning alone can't clear, combining several devices and medications in one plan. We cover why melasma keeps coming back, why treating blood vessels matters alongside pigment, and why too much stimulation can backfire.
By Dr. Kim
Riehl melanosis is a pigmented contact dermatitis triggered by repeated irritation from cosmetic and perfume ingredients. It looks like melasma on the surface, but the cause and treatment are entirely different. Here's how pigment leaks down into the dermis, why avoiding the trigger is the key to treatment, and what the laser approach looks like.
By Dr. Kim
Unlike a laser, which fires a single wavelength, IPL releases a broad spread of light all at once. That's what lets it reach two very different targets, melanin and hemoglobin, in the same pass, and understanding that mechanism explains why it's said to treat multiple concerns in one session.
By Dr. Kim
Pico toning fires light in picosecond bursts, so short they target melanin pigment alone and shatter it into fragments. Here is the physics behind why such a short pulse works, and why that brevity makes it a gentler option even for melasma, which reacts badly to irritation.
By Dr. Lee
Nevus of Ota sits deep in the dermis, not on the skin's surface, which is why no amount of concealer can hide it. Here is the mechanism behind why only a specific laser wavelength can reach that depth, and why treatment is spread across 6 to 10 sessions, 6 to 8 weeks apart.
By Dr. Lee
Cherry angiomas, the small red spots that multiply on the skin with age, come down to changes in blood vessel structure. Here is how vascular laser targets hemoglobin to clear them, plus what recovery and recurrence really look like.
By Dr. Kim
At a glance, freckles and melasma both look like brown spots, which makes them easy to mix up. But where the pigment actually sits in the skin, and why it shows up in the first place, are completely different. That difference decides whether you need a strong laser or a gentle toning session, and why one of the two keeps coming back.
By Dr. Lee
Hollywood Spectra is a Q-switched Nd:YAG laser using 1064nm and 532nm wavelengths, most commonly known for carbon peel toning, where a carbon lotion is applied and the laser is passed over the skin repeatedly at low power. Here is how it works on melasma pigment, pores, and skin tone, along with what the actual research shows about its effects and limits.
By Dr. Lee
A mechanism-focused look at how tattoo removal lasers shatter ink particles under the skin and how the body clears the fragments away. We also cover why black and blue fade easily while green and yellow tend to linger, and why removal has to be spread across multiple sessions.
By Dr. Kim
Why solar lentigines resist laser toning comes down to where the pigment actually sits. Here is how the photoacoustic effect breaks it apart, why one or two sessions often do the job, and how to manage crusting and dark marks afterward.
By Dr. Kim
A look at why ruby lasers use 694nm through the melanin absorption curve, with real study numbers on how well it treats age spots, Ota's nevus, and tattoos. Covers how to lower the risk of pigmentation in Asian skin, what recovery looks like, and how it compares with picosecond lasers.
By Dr. Kim
Melasma often fades after laser treatment only to return months later. This piece breaks down why, looking at UV exposure, hormones, and blood vessels as three separate but overlapping triggers, and explains why melasma calls for ongoing management rather than a one-time cure.
By Dr. Lee
A cafe-au-lait spot is a light milk-coffee brown patch on the cheek or arm, and because its pigment sits in the shallow epidermis, laser light reaches it easily, though it also tends to come back. Here's how to tell it apart from moles and melasma, why multiple spots call for a check-up, how much laser treatment can fade it, and how to manage recurrence.
By Dr. Kim
Eyebrow permanent makeup fades when a laser shatters the pigment lodged in the skin so immune cells can carry it away. Here's how that process works, including the risk of iron oxide pigment turning darker instead of fading, and how color lightens session by session.
By Dr. Kim
A clear, research-backed guide to what a mole actually is, how it differs from seborrheic keratosis, skin tags, and warts, how CO2 laser vaporizes a mole away, how recurrence, scarring, and pigmentation are managed, why deep or large moles call for punch excision, and the ABCDE signs that help catch melanoma early.
By Dr. Kim