『Lasers in Skin』のカバーアート

Lasers in Skin

Lasers in Skin

著者： Lisa McMahon & Mike Murphy
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 Lasers in Skin Podcast, hosted by "Laser Guru" Mike Murphy, and his daughter Lisa McMahon, dives into the science of lasers in aesthetics. Mike and Lisa delve into the fundamental physics all laser technicians must understand to get the best results, while squashing the myths, the "marketing baloney" and calling out poor training in the industry. Along with unmissable interviews and 'ask us anything' episodes, the Lasers in Skin Podcast is the ultimate podcast for laser geeks! アート ファッション・テキスタイル 科学 衛生・健康的な生活 装飾美術および設計
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  • Technical Questions We Often Get

    Technical Questions We Often Get
    2025/07/31
    In today's episode of Lasers In Skin, your favourite laser-loving duo, Lisa and Mike, tackle some of the most burning (but not literally!) questions from listeners about laser technology. From dialling in the perfect calibration to decoding the mysteries of fluence and spot size, they break it all down with their signature mix of wit and wisdom. You'll also hear about the best wavelengths for zapping melanin and targeting haemoglobin like a pro. KEY TAKEAWAYS The numbers displayed on laser machines, such as millijoules, often do not accurately represent the actual energy output. Proper calibration using a meter is essential to determine the true energy and fluence delivered to the skin. Changing the spot size of a laser significantly affects the fluence (energy density) delivered to the skin. A larger spot size decreases fluence, which can impact treatment effectiveness, especially for hair removal and vascular treatments. When comparing laser machines, it's crucial to consider power density (power delivered per unit area) rather than just the total power output. Two machines with the same power density can deliver similar treatment results, regardless of their total wattage. Different wavelengths are used to target specific chromophores in the skin. For hair removal, red and infrared wavelengths are preferred due to their deeper penetration, while green and yellow wavelengths are effective for treating blood vessels. Higher fluence levels generally lead to fewer treatment sessions required for effective results. However, the choice of wavelength also affects the necessary fluence, as lower wavelengths can deliver more energy to the target without damaging surrounding tissues. BEST MOMENTS "The reality is that those numbers on a lot of these machines are just what I call scale numbers. They don't refer to the actual energy or power or anything that's coming out of the machine." "If you're using like a 1064 nanometers, because that particular wavelength is the most benign wavelength in the skin. Right. It doesn't do an awful lot of damage." "If you go from say, say that with a lens the spot size is say five millimetres, right, and you swap over, you put on a glass tip and it's now 10 millimetres. That's doubling the diameter, right?" "If you're treating hair, the target that absorbs the light is the melanin. The targets we're trying to kill are the stem cells. But the stem cells don't have a chromophore that we can target." "If you're using huge big spots like 24mm, that's pretty massive, right? Then I would imagine that the maximum fluence you'll get in that spot is fairly low." ABOUT THE HOSTS Mike began his career in medical lasers in 1986 with a physics degree and a post-grad in bioengineering. He helped develop the scar-free removal of tattoos using a Q-Switched Ruby Laser in Glasgow, and the world's first IPL system. Known well in the industry for his hard truths, no BS attitude and logical answers. As the author of three books, articles for medical journals, a well read blog, a Laser Protection Advisor and contributor to the BMLA, Mike is the Laser Guru. Lisa's claim to laser fame is being Mike's daughter. Growing up with lasers and never avoiding a physics lesson from her Dad, it was natural to enter the industry. Leaving a corporate career with a baby to jump into self employed life came with challenges. Despite that Lisa has been well recognised for her teaching style, practical tips, bringing the compassion to the science, and laser mentoring. Instagram: @dermalase_lasertraining https://mikemurphyblog.com https://www.dermalasetraining.com This Podcast has been brought to you by Disruptive Media. https://disruptivemedia.co.uk/
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    35 分
  • Mike Reacts To Social Media Advice

    Mike Reacts To Social Media Advice
    2025/07/24
    Today, Mike and Lisa take to the internet to fact-check some of the more questionable laser advice being dished out across the internet. They address a variety of topics, including the effectiveness of different laser technologies, ideas about cooling the skin during treatments, and the potential pitfalls of taking bad advice. KEY TAKEAWAYS Cooling the skin is essential for reducing pain during laser hair removal treatments. Techniques such as using ice packs or air coolers are recommended over numbing creams, which may mask pain but do not address the underlying thermal damage. There is a significant amount of misinformation in the laser treatment industry, often propagated by salespeople. Various laser technologies can be effective if used correctly, and no single type of laser is universally superior. Hair regrowth in different colours (e.g., white) after laser treatments is not caused by previous IPL treatments. Instead, it can occur due to the destruction of melanin in the hair follicles, which is a temporary effect. Both picosecond and nanosecond lasers can effectively treat black ink tattoos. Claims that one type is categorically better than the other for specific colours are often misleading and lack scientific backing. The term "oxidation" is frequently misused in discussions about tattoo ink reactions. While some inks may change colour due to chemical processes, the idea that white ink will oxidise and change colour when treated with a laser is not supported by evidence. BEST MOMENTS "Numbing cream just deadens the sensations of the nerves. It doesn't cool the skin. So you're still going to get thermal damage." "The fact of the matter is that there are a number of technologies available today that all do a great job if applied correctly." "It's always been. So you always get salespeople from various companies will tell you any old garbage to make a sale." "If your melanin is destroyed in the hair and it's bleached, then your hair will become white or grey, but it doesn't really matter because it's a short-term thing." "Everything works on black. Black is black because it absorbs everything, all the wavelengths, right? So it doesn't matter if it's Pico, Nano or whatever." ABOUT THE HOSTS Mike began his career in medical lasers in 1986 with a physics degree and a post-grad in bioengineering. He helped develop the scar-free removal of tattoos using a Q-Switched Ruby Laser in Glasgow, and the world's first IPL system. Known well in the industry for his hard truths, no BS attitude and logical answers. As the author of three books, articles for medical journals, a well read blog, a Laser Protection Advisor and contributor to the BMLA, Mike is the Laser Guru. Lisa's claim to laser fame is being Mike's daughter. Growing up with lasers and never avoiding a physics lesson from her Dad, it was natural to enter the industry. Leaving a corporate career with a baby to jump into self employed life came with challenges. Despite that Lisa has been well recognised for her teaching style, practical tips, bringing the compassion to the science, and laser mentoring. Instagram: @dermalase_lasertraining https://mikemurphyblog.com https://www.dermalasetraining.com This Podcast has been brought to you by Disruptive Media. https://disruptivemedia.co.uk/
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    23 分
  • Watch Your Language!

    Watch Your Language!
    2025/07/17
    In this episode, Lisa and Mike delve into the complexities of language as it pertains to the field of laser hair removal and skin treatments. They discuss the term "paradoxical hypertrichosis," exploring its definitions and the potential for misinterpretation within the industry. They highlight the importance of precise language when discussing hair growth, treatment effects, and the various parameters involved in laser technology. They also touch on the significance of understanding skin tone versus skin type, emphasising how clarity in terminology can enhance communication and improve treatment outcomes. KEY TAKEAWAYS Clear and precise language is crucial in discussions about hair growth and laser treatments to avoid misunderstandings and misinterpretations. The term "paradoxical hypertrichosis" is often misused. It should refer to hair growth in areas that have not been treated with laser, while many are confusing it with stimulated or synchronised hair growth in treated areas. Treatments like laser hair removal can lead to synchronised hair growth, where previously dormant follicles may start to grow at the same time due to the treatment, rather than indicating paradoxical hypertrichosis. Terms like "strength" or "stronger laser" are vague and can lead to confusion. It's essential to specify parameters such as fluence, energy density, and power when discussing laser treatments. The distinction between skin tone and skin type is important. Skin tone refers to the concentration of melanin in the skin, which affects how it reacts to treatments, while skin type (Fitzpatrick classification) is related to UV radiation response and is not relevant in the context of laser treatments. BEST MOMENTS "Paradoxical hypertrichosis... basically it's hair growth in an area where you didn't have hair growing before." "I believe that everybody that is saying they see this, they are definitely seeing something, but I don't know if they're all meaning the same thing." "You cannot stimulate new follicles, but you can stimulate them into a different phase of growth." "Skin type is your Fitzpatrick, which is how your skin reacts to ultraviolet radiation." "Using the wrong language is just a, to me, it's bad language." ABOUT THE HOSTS Mike began his career in medical lasers in 1986 with a physics degree and a post-grad in bioengineering. He helped develop the scar-free removal of tattoos using a Q-Switched Ruby Laser in Glasgow, and the world's first IPL system. Known well in the industry for his hard truths, no BS attitude and logical answers. As the author of three books, articles for medical journals, a well read blog, a Laser Protection Advisor and contributor to the BMLA, Mike is the Laser Guru. Lisa's claim to laser fame is being Mike's daughter. Growing up with lasers and never avoiding a physics lesson from her Dad, it was natural to enter the industry. Leaving a corporate career with a baby to jump into self employed life came with challenges. Despite that Lisa has been well recognised for her teaching style, practical tips, bringing the compassion to the science, and laser mentoring. Instagram: @dermalase_lasertraining https://mikemurphyblog.com https://www.dermalasetraining.com This Podcast has been brought to you by Disruptive Media. https://disruptivemedia.co.uk/
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    33 分
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