How Does Laser Treatment for Pigmented Skin Lesions
Works ?
Cross section diagram of skin demonstrating absorption of laser light by skin pigments only.
Laser works by delivering an intense beam of light that is absorbed by a specified laser target, which in this case refers to skin melanin. This light is converted into heat energy, which is absorbed by the melanin. Sufficient heat is produced to damage the melanin, while leaving surrounding normal skin structures relatively unaffected. Therefore, laser treatment for pigmented skin lesions only selectively destroys the pigments and does not strip away layers of the skin.
Laser
Treatment May Improve Collagen Regeneration and Skin Elasticity
Besides
treating pigmented skin lesions, the laser energy also induces
collagen synthesis and remodelling, leading to improvements in dermal
layer thickness and collagen fiber density. This effect is well
documented in many clinical studies.
Taking
Care of the Skin After Laser Treatment for Pigmented Skin Lesions
Immediately after treatment, there will
be some mild redness of the skin. Do avoid sunlight exposure for at least
a month after laser treatment for pigmented skin lesions and use a
sunscreen of at least SPF 25. Occasionally, the treated skin will
more likely develop mild redness when exposed to the sun or feels dry
- this effect is usually temporary and it is advisable to use a
moisturiser to soothe any irritation and to moisturise the skin.
So, the truth is – laser treatment for
pigmented skin lesions does not cause skin thinning. The treatment
may sometimes induce temporary mild redness and dryness that is
mistaken by some as the effects of thinned skin.
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