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<p><strong>How does a laser work?</strong> </p>
<div>A laser works by emitting a concentrated and coherent beam of light at a specific wavelength. When the <a title="laser" href="/treatment/laser-skin-rejuvenation" target="_blank" rel="noopener">laser</a> light interacts with the skin, it targets and heats up specific skin structures, such as pigment, blood vessels or water, depending on the treatment goal. This controlled energy absorption triggers a response in the skin, stimulating collagen production and promoting skin rejuvenation. The targeted hearing encourages cell renewal, improving skin texture and addressing various concerns like wrinkles, sun damage, and pigmentation. With its precision and efficacy, lasers offer effective and tailored solutions for a wide range of skincare issues. </div>
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<p><strong>What’s the difference between ablative and non-ablative lasers? And how do I know which one I need? </strong></p>
<div>The main difference between ablative and non-ablative lasers in dermatology lies in the depth of penetration and the extent of skin removal during treatment. Ablative lasers remove the outer layers of the skin, creating controlled injuries that stimulate collagen production and skin rejuvenation. This type of laser is more aggressive and is typically used for treating deep wrinkles, <a title="scars" href="/conditions/scarring/" target="_blank" rel="noopener">scars</a> or sun damage. Non-ablative lasers, on the other hand, target the underlying layers of the skin, without removing the surface. They are less invasive, with shorter recovery times, making them suitable for mild wrinkle, pigmentation and overall skin tightening. Both ablative and nonablative lasers offer effective solutions for various skin concerns, but the choice depends on the individual’s specific needs and desired outcomes. </div>
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<p><strong>What is a fractional laser? </strong></p>
<div>The main difference between fractional and cofluent lasers lies in how they deliver energy to the skin. <a title="Fractional lasers" href="/treatment/fractional-laser-skin-resurfacing" target="_blank" rel="noopener">Fractional lasers</a> create tiny, evenly spaced microthermal zones, leaving surrounding skin unaffected. This promotes faster healing and minimal downtime, making them ideal for treating fine lines, scars and pigmentation. Cofluent lasers, on the other hand, deliver a continuous beam of energy over the entire treatment area, affecting a larger surface area but with more downtime. They are better suited for more extensive skin resurfacing and for treating deeper wrinkles and scars. The choice between the two depends on the specific skin concerns and the desired results. </div>
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<p><strong>Is laser painful? </strong></p>
<div>Laser treatments can cause varying degrees of discomfort, but more patients report only mild sensations during the procedure. The level of discomfort depends on the type of laser used, the patient’s pain tolerance, as well as the treatment area. Non-ablative and fractional lasers typically cause minimal discomfort, akin to a sunburn sensation. However, at Self London, we apply a topical anaesthetic cream to minimise discomfort where necessary, and the procedure is generally well-tolerated. Post-treatment, patients might experience mild redness or sensitivity, which usually subsides within 2-7 days, depending on the type of treatment. </div>

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