A CO2 laser works by delivering pulses of laser light to the skin, targeting water within skin cells to vaporize the outer layer and stimulate collagen production.
Here's a breakdown of the process:
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Laser Light Delivery: The CO2 laser emits a focused beam of light at a specific wavelength (around 10,600 nm). This wavelength is highly absorbed by water.
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Targeting Water in Skin Cells: Since skin cells contain a significant amount of water, the laser energy is readily absorbed by these water molecules.
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Vaporization of the Epidermis: When the water absorbs the laser energy, it rapidly heats up and vaporizes, effectively removing the outer layer of skin (the epidermis). This process is called ablation.
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Dermal Heating and Collagen Stimulation: Simultaneously, the heat from the laser penetrates into the deeper layer of skin (the dermis). This controlled heating stimulates fibroblasts, which are cells responsible for producing collagen.
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Collagen Production and Skin Rejuvenation: As the dermis heals, the stimulated fibroblasts produce new collagen fibers. Collagen is a protein that provides structure and elasticity to the skin. Increased collagen production leads to improved skin texture, reduced wrinkles, and a more youthful appearance.
In summary, CO2 lasers cause controlled skin damage that triggers the body's natural healing response, leading to skin resurfacing and rejuvenation through collagen remodeling.
