Er:YAG laser

The Erbium YAG laser or Er:YAG laser is an advanced, ablative laser Known for its precision and minimal thermal damage, this laser is particularly effective for treating superficial to more pronounced skin aging, fine lines, scars, pigment spots, and irregular skin texture.

In contrast to the deeper penetrating CO₂ laserThe Er:YAG laser works superficially and vaporizes skin tissue very precisely, with less heat dissipation in the surrounding tissue. This reduces downtime and the risk of complications, making this laser popular in both medical and aesthetic practices.

On this page you can read all about the operation, benefits, applications and different treatment modes of Er:YAG lasers, including answers to frequently asked questions and tips for choosing the right system.

What is an Er:YAG laser?

The Er:YAG laser is an ablative laser which evaporates (ablates) layers of skin in a very controlled manner to activate the skin's natural healing process.

This laser emits light with a wavelength of 2940 nm, which is very powerfully absorbed by water. Water is a key component of cells in the epidermis and superficial dermis. When the Er:YAG laser is aimed at the skin, the laser energy is almost immediately absorbed by the water present in the skin tissue. This strong absorption ensures controlled vaporization of the treated tissue without overheating surrounding structures. This results in highly precise ablation with minimal thermal damage to the surrounding skin.

This controlled ablation stimulates collagen and elastin production in the deeper layers of the skin, promoting skin renewal. Thanks to the limited thermal damage, recovery is faster than with similar CO2 laser treatments, which typically penetrate deeper and generate more heat. This makes the Er:YAG laser particularly suitable for those seeking an effective treatment with a lower risk of side effects and faster healing.

Advantages of Er:YAG lasers

• Highly precise ablation with minimal heat dissipation
• Short downtime and faster recovery than CO₂ lasers
• Suitable for sensitive skin and lighter indications.
• Lower risk of hyperpigmentation and scarring
• Precise control over the depth and intensity of the treatment
• Effective for wrinkles, scars, pigment and skin texture.

Treatment options Er:YAG lasers

Er:YAG lasers can offer various treatment modes, such as fully ablative, fractional, and in some cases even non-ablative. The choice of a particular mode depends on the desired result, the skin condition, and the recovery time appropriate for the client.

Fully ablative Erbium YAG laser

In fully ablative mode, the Er:YAG laser removes sections of the epidermis or superficial dermis with high precision. This treatment is used for the removal of benign skin lesions, skin rejuvenation, pigment spots, and superficial scars. Depending on the settings and capabilities of the device used, the treatment can range from very superficial, for immediate relief with a recovery time of several days, to deeper stimulation with a more intensive recovery process.

Fractional Er:YAG laser

When the Er:YAG laser is used in fractional mode, it treats only microscopic columns in the skin, while leaving the surrounding tissue intact. This accelerates recovery and allows for deeper treatment with a reduced risk of side effects. Fractional Er:YAG lasers are widely used for skin rejuvenation, reducing fine lines and superficial pigmentation disorders, treating (acne) scars, and refining pore size.

Want to know more? Also check out our page about fractional lasers.

Non-ablative Er:YAG laser

Although the 2940 nm wavelength is naturally strongly absorbed by water and is therefore classically considered highly ablative, modern Er:YAG lasers now also offer the possibility of non-ablative treatment.

Thanks to advanced technology, the settings can be adjusted to preserve the top layer of skin. In this non-ablative mode, energy is delivered to the skin in a controlled manner, heating the deeper layers. This stimulates collagen production and results in skin tightening. This treatment is also well-suited for the sensitive skin around the eyes and on the mucous membranes, including the inside of the mouth.