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1550 Erbium Laser & 1927 Thulium Laser for the Treatment of Photodamaged Skin
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1550 Erbium Laser & 1927 Thulium Laser for the Treatment of Photodamaged Skin

2026-01-07

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1550 Erbium Laser & 1927 Thulium Laser for the Treatment of Photodamaged Skin

 

What is the difference between laser 1550nm and 1927nm?

The 1,550 nm wavelength Penetrates deeper layers of skin, stimulates collagen remodeling to address wrinkles、scar thickness and texture, and the 1,927 nm wavelength  Targets the supeRficial layers,focuses on dyspigmentation associated with scarring,to treat pigmentation, sun damage, freckles, and actinic keratoses.. Case studies have been published on treatment of trauma-related scars using a combination of 1,550 and 1,927 nm lasers.

 

How long does it take to see results from 1550?

Most patients see noticeable improvements in their skin's tone and texture within 1 to 2 weeks after treatment. However, full results typically appear gradually over 3 to 6 months as collagen production continues and skin regenerates.

 

Is 1550nm Laser safe for eyes?

An additional factor with these systems is that light around the 1550 nm wavelength band (common for optical amplifiers) is regarded as relatively low risk, since the eye fluids absorb thE Light before it is focused on the retina. This tends to reduce the overall risk factor of such systems.

 

Does 1550nm tighten skin?

1550nm creates microscopic treatment zones, delivering energy in the deeper layers of the skin, triggering natural repair and collagen production for smoother, tighter, and more youthful skin.

 

What Is 1927nm Good For?

Sun spots (solar keratosis – precancerous sun spots)

Brown spots (solar lentigines, freckles)

Wrinkles

Uneven skin tone and texture

Scars and acne scars

Melasma (as part of combination treatment with sun protection and prescription creams/medications/skin injections)

 

Which Parts of the Body Can 1927nm Treat?

1927nm is primarily used on the face, neck, chest, arms, hands and body.

 

How Do I Prepare My Skin for Treatment With 1927nm?

Always use sunscreen, whether you are preparing for a laser treatment or not. Your dermatologist or dermal clinician may also recommend using a pigment inhibitor cream prior to a LaseMD Ultra treatment to reduce the chance of post-inflammatory hyperpigmentation.

 

What Is the 1927nm Treatment Like?

The dermal clinician performing your treatment may apply numbing cream before using the laser to make sure you are comfortable. If the device is calibrated to a lower intensity setting, topical anaesthesia may be unnecessary. You will feel some sensations as the 1927nm handpiece is passed over your skin. Patients typically describe the feelings as warmth and tingling. 1927nm treatment may range from 5 to 20 minutes or longer, depending on the size and number of areas being addressed.

 

What Is the Recovery Like After a 1927nm Treatment?

The fractionated approach means 1927nm’s downtime is reduced compared to more aggressive, non-fractional laser treatments. Once your session is over, your face will look like you have a sunburn. You’ll notice some redness and minor swelling that should lessen over the next day or so. You will be able to resume normal activities immediately, although most people choose to take physical activities lightly for one to two days. You can apply makeup starting the day after your treatment.

 

Over the next five to six days, your skin will develop a dry, sandpaper-like texture. This is normal and will resolve as your skin exfoliates, revealing the fresher, clearer skin below the surface. In most cases, full healing takes 5 to 7 days. Patients who receive a more powerful treatment should expect a longer healing time.

 

You may start to see improvements in your skin soon after your 1927nm treatment. However, changes can continue for months as your collagen levels increase. Your skin will look tighter, younger, brighter and naturally healthy.

 

How deep can a 1550nm wavelength laser penetrate?

The treatment depth depends on the wavelength used, as a 1550nm wavelength laser penetrates the skin deeper than a 1927nm wavelength laser. A 1550nm wavelength laser typically penetrates the skin to a depth of 1.5 to 1.7 millimeters. This has been verified by experienced dermatologists.

 

How quickly will I see 1550nm and 1927nm results?

How many sessions will I need to see results? On average, a patient may require 3 to 5 sessions spaced 2 to 4 weeks apart. This regimen facilitates healing and replacement of damaged tissue with new collagen. Optimal improvement is usually seen in 2 to 3 months.

 

What should you not do after 1550nm and 1927nm treatment?

After Fraxel laser, avoid sun exposure (SPF 30+ daily, hats), harsh products (retinoids, acids, scrubs), picking/rubbing skin, overheating (saunas, intense exercise, hot showers), and heavy makeup for several days, focusing instead on gentle cleansing, moisturizing (like Aquaphor/CeraVe), and protecting your delicate, healing skin to prevent irritation and ensure optimal results.

 

What is the best cream to use after 1550nm and 1927nm treatment?

The best moisturizers after 1550nm and 1927nm treatment are gentle, fragrance-free, ceramide-rich creams that repair the skin barrier, like CeraVe Moisturizing Cream, La Roche-Posay Lipikar Triple Repair, or SkinCeuticals Epidermal Repair, while avoiding occlusives (Vaseline, Aquaphor) initially to prevent trapping heat. Focus on consistent hydration (multiple times daily) with soothing ingredients (aloe, glycerin) and use physical sunscreens after 24 hours, as skin will be sensitive and peeling.

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