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February 03, 2020
The light spectrum is extremely complex! The waves that make up light and their relationship with their environment can differ drastically depending on their frequency, energy, and wavelength. With so many types of light ranging from invisible infrared, UVA and UVB, to the visible rainbow, there are so many ways light can impact the human body. In this article we answer some of most frequently asked questions about the benefits and dangers associated with light and how it impacts skin.
Light is what's called an "electromagnetic wave". Electromagnetic waves come in the form of radio waves, microwaves, X-ray waves, visible light and more. The frequency and wavelength of an electromagnetic wave is determined by how it ‘scrunches’ together, changing how far apart the peaks are. The wavelength determines its characteristics and what happens when it bumps into things. For example, radio waves have a longer wavelength (the peaks in a radio wave are pretty far apart) making them invisible to the human eye and allowing them to pass through our bodies undetected. Light has a shorter wavelength and comes in the form of ultraviolet light, infrared light, and the visible rainbow.
The sun emits 38,460 septillion watts of energy every second! This huge amount of energy takes many forms including several types of light. The sun emits both visible light and invisible infrared and ultraviolet light. The ultraviolet waves coming from the sun are the perfect shape to bump into the molecules within our body. Unfortunately, the ultraviolet-A (UVA) and ultraviolet-B (UVB) light collide with our DNA and can cause damage leading to mutations or cell death. This process is responsible for visible signs of aging as well as skin cancers. (Wearing The Perfect Sunscreen blocks UVA and UVB light from reaching your skin, protecting your from these damaging rays).
Cold Laser is a low-level LED light therapy used in the Consonant Custom Cold Laser (C3L) Facial Treatments. We use a panel of 648 SLED bulbs that have the ability to emit 7 different wavelengths of visible light. Each wavelength appears as a different colour and stimulates cells in a different way. Depending on what the skin needs, the light colour prescription and duration is customized to target specific benefits.
Blue light is an electromagnetic wave that has a wavelength of about 470nm. Since blue light has the shortest wavelength of visible light, it is also produces the most energy. When blue light reacts with the skin, it helps to kill bacteria, soothe inflammation, and stimulate energy production. It can be beneficial for those with acne, rosacea and ageing skin. The result of blue light on skin is calmer, clearer and more radiant-looking skin.
There is a lot of research currently being released regarding exposure to blue light and the impact it has on mood, hormones and overall health. The light from the sun’s rays, computer and phone screens, and some household lighting systems, produce small amounts of blue light. While this light is not strong enough to provide a skin benefit, exposure to these sources throughout the entirety of the day, does have the ability to confuse the body’s natural circadian rhythms and has been shown to contribute to poor eye health. The blue light tells the body it’s daytime and the body reacts by producing hormones that stimulate wakefulness. When the body is chronically exposed to these sources of blue light (even when it’s dark out) we can become overstimulated by these hormones, putting the body at risk of a number of health conditions. Many experts recommend wearing blue-light filtering glasses to help reduce exposure to these rays.
While the blue light from a C3L treatment is very potent, we ensure our clients are fitted with a pair of light-blocking goggles. These goggles work similarly to blue-light filtering glasses and are designed to block several wave-lengths of light. We also instruct our clients to keep their eyes closed during the duration of their light panel portion of their treatment.
Light can take on many forms, both good and bad. Taking proper preconscious, being mindful of exposure and taking advantage of technology will help protect and provide benefit to your skin and overall health.
For more information about Consonant Customer Cold Laser Facials feel free to call us at 416-214-2855, click HERE or come in to one of our stores!
 Yeh, N. G., Wu, C. H., & Cheng, T. C. (2010). Light-emitting diodes—their potential in biomedical applications. Renewable and Sustainable Energy Reviews, 14(8), 2161-2166. Read
 Almeida-Lopes, L., Rigau, J., Zangaro, R. A., Guidugli-Neto, J., & Jaeger, M. M. M. (2001). LLLT acts by improving the in vitro fibroblast proliferation–comparison of the low level laser therapy effects on cultured human gingival fibroblasts proliferation using different irradiance and same fluence. Lasers Surg Med, 29, 179-184.
 Pugliese, L. S., Medrado, A. P., Reis, S. R. D. A., & Andrade, Z. D. A. (2003). The influence of low-level laser therapy on biomodulation of collagen and elastic fibers. Pesquisa Odontológica Brasileira, 17(4), 307-313. Read
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