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August. 16, 2024
Navigating the different types of laser hair removal machines can be overwhelming. You might have come across terms like diode, ruby, and alexandrite – but what do they really mean, and how do they affect your laser hair removal experience and results? In this guide, we'll break it down for you.
A laser is a device that emits amplified, concentrated light at a specific wavelength, allowing it to target hair follicles and inhibit hair growth effectively.
The wavelength of the laser is determined by the type of laser hair removal machine and the crystal used to amplify the light. This wavelength plays a crucial role in the effectiveness and safety of the treatment for different skin and hair types.
Below, we explore the main types of laser hair removal machines and compare how they perform.
When it comes to efficacy, alexandrite lasers beat all of the other laser technologies. Studies consistently show that alexandrite laser devices can eliminate a greater percentage of hairs compared to other machines.
Alexandrite is proven safe and highly effective for Fitzpatrick skin types 1-3, but those with deeper skin tones will do better with a different laser, such as the Nd:YAG. If the alexandrite pulse is slowed down, it can be safe for those with deeper skin tones – however, the use of lasers with longer wavelengths is better established.
Nd:YAG stands for neodymium-doped yttrium aluminum garnet—quite a mouthful! This crystal was developed specifically for lasers and emits light at a wavelength of 1064 nm. The higher wavelength allows the laser to bypass the skin and directly target the hair follicle, making it the safest option for laser hair removal on darker skin tones.
While rubies are cherished in jewelry, as a laser hair removal technology, they are considered outdated. The first laser device ever made used a ruby crystal to amplify light, which was groundbreaking at the time and laid the foundation for future laser innovations.
However, ruby lasers operate at a wavelength of 694 nm, which makes it difficult for them to effectively penetrate the skin and reach the hair follicle without a significant contrast between hair and skin color. This limitation increases the risk of side effects such as blistering, hyperpigmentation, and hypopigmentation, particularly for individuals with darker skin tones.
Lastly, there's Intense Pulsed Light (IPL). Although IPL is often grouped with laser hair removal, it's technically not a laser. Instead of emitting light at a single wavelength, IPL emits a broad spectrum of light. This makes it weaker and gentler compared to laser devices, which is why IPL is popular in home-use hair removal devices.
However, IPL is generally less effective than lasers. It typically works on a more limited range of skin tones and often requires more treatments to achieve the desired results.
Why use IPL Machine at Home for Permanent Hair Removal?
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