The Beginner’s Guide to Laser Skin Treatments

Laser treatments are an important part of how we address concerns in the field of aesthetics. These concerns include sun damage, uneven pigmentation, redness, fine lines, wrinkles, acne scarring, changes in skin texture, and more. With so many devices and treatment names available, it can be difficult for patients to understand what they need. After 15 years of working in dermatology and plastic surgery, one of the most common questions I hear is, “Which laser is best? “The answer is different for every patient.

Providers rarely begin by thinking about a particular device. First, we look at a patient’s skin, what they would like to improve, their skin type, medical history, previous treatments, tolerance for downtime, and expectations. From there, we can determine which type of treatment is most appropriate and, just as importantly, which treatments should be avoided.

Lasers deliver a specific wavelength of light energy into the skin. Different wavelengths are absorbed by different targets, or chromophores, within the skin. Depending on the technology, that target may be pigment, blood vessels, or water within the skin.
This is why one laser may be very effective for brown spots but do very little for redness, while another may be designed specifically to address blood vessels or stimulate remodeling within deeper layers of the skin.

Wavelength is only part of the equation. The amount of energy delivered, treatment depth, pulse duration, density, number of passes, and other settings can significantly change how a treatment affects the skin. This is also why the same device can sometimes be used very differently from one patient to another.

Ablative Lasers

Ablative lasers remove controlled portions of the outer layers of skin while heating deep tissue. These treatments can produce significant improvement in wrinkles, sun damage, texture, and certain types of scarring. Because they create a more substantial injury to the skin, they typically require more downtime and more intensive aftercare.

Nonablative Lasers

Nonablative lasers deliver heat beneath the surface while leaving the outer layer of skin largely intact. They are commonly used to address pigmentation, early signs of aging, mild textural changes, and collagen stimulation. Recovery is generally shorter, although a series of treatments may be recommended to achieve the desired result.

Fractional laser technology

Fractional laser technology can be either ablative or nonablative. Instead of treating the entire surface equally, it creates microscopic treatment zones while leaving areas of surrounding skin untreated. Those untreated areas help support the healing process. Depending on the device and settings, fractional treatments can range from relatively mild to much more aggressive.

Hybrid treatments

Hybrid treatments combine different wavelengths or treatment approaches during the same session. This allows us to address more than one concern, such as pigmentation and texture, while adjusting the intensity and recovery period to the individual patient.

IPL and BBL

IPL and BBL are also commonly discussed alongside lasers. Technically, these are intense pulsed light and broad-band light treatments rather than true lasers. They use a broader spectrum of light and can be very effective for concerns such as redness, visible blood vessels, sun damage, and uneven pigmentation. For redness driven by visible vessels, timing rosacea laser treatment for fall keeps sun avoidance manageable through recovery.

One of the most important parts of a laser consultation is evaluating the patient’s skin type and pigment. We often use the Fitzpatrick skin type classification as one component of that assessment. Skin with more melanin can respond differently to laser and light-based energy and may have a greater risk of post-inflammatory hyperpigmentation or other pigment changes with certain treatments. That does not automatically mean someone with a darker skin type cannot have laser treatment. It means the treatment, wavelength, settings, and aftercare need to be selected appropriately. Skin prone to melasma needs extra caution, because melasma and hyperpigmentation respond differently to laser treatment, and heat can darken it.

Recent sun exposure and tanning also matter. I want patients to tell me about vacations, outdoor activities, self-tanning products, and anything else that may have recently changed their skin. Even medications that can make a patient sensitive to the sun are important for a provider to know. These details can affect both treatment timing and safety.

A good consultation involves much more than deciding which device to use.

Providers need to know the patient’s primary concerns, available downtime, and realistic goals. Someone who needs to return to work the next day has very different options from someone who is comfortable with several days of redness, swelling, peeling, or crusting. In general, more aggressive treatments can produce more dramatic improvement, but they also tend to involve greater recovery and risk. In addition, it is helpful for patients to share relevant medical history, as well as previous laser treatments, chemical peels, microneedling, injectables, prescription and topical medications. This list should also include any prior history of cold sores, abnormal scarring, and pigment changes after previous procedures. This information helps to guide the clinician to better serve the patient’s objective. The overall goal is not to perform the strongest treatment possible, but to choose an appropriate treatment that balances results, safety, and recovery for that individual patient.