Laser therapy in dermatology: an overview
Why laser light specifically reaches individual structures and which skin changes it is used for.
Not all lasers are the same. Different systems work with different wavelengths – and therefore for different goals.
The principle of selectivity
Laser light is absorbed particularly well by certain structures: pigment absorbs different wavelengths than the red blood pigment. This allows energy to be delivered precisely where it should act, while the surrounding tissue is spared.
Typical areas of application
- pigment and age spots, sun damage
- dilated capillaries, couperose and redness
- acne scars and fine lines
- firming and refining the complexion
- removal of benign skin changes
Diagnosis comes first
Every laser treatment is preceded by a dermatological examination. It must be clear what a skin change is – lasering a pigmented lesion without assessing it can mask a diagnosis that requires treatment.
Procedure
You wear eye protection during the treatment. The sensation is usually described as a brief tingling or snapping. The duration depends on the area and indication.
Afterwards
The skin can be reddened for a few hours to days. Consistent sun protection in the weeks after treatment is crucial – fresh tanning and lasers do not mix.
Several sessions are the rule
Depending on the indication, several sessions a few weeks apart are needed. Proper advice states this number in advance.