Chapter 2: led, ipl, and laser treatments, High power versus low power – Activeforever Quasar MD Plus Advanced Light Therapy Device User Manual
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Chapter 2: LED, IPL, and Laser Treatments
What is the Difference between LED’s, IPL, and LASERS?
 
LED’s and LASERS both produce electromagnetic radiation at specific 
wavelengths. IPL devices normally produce a wider bandwidth (multiple 
wavelengths) than pure Lasers or LED’s. A laser will produce 100% of its light 
energy in a single wavelength such as 632.8 nm and the light will be coherent 
(single wavelength in phase). A LED producing light at 632nm will produce 94% 
of the light between 630nm and 634nm and the light is not coherent. An IPL 
device will produce a bandwidth of high intensity light energy where 100% might 
lie between 580nm to 900nm. IPL devices can use several filters to vary the 
bandwidth. Several studies establish that it is the light itself at specific 
wavelengths which is therapeutic in nature and not the machine producing it. 
 
21. An IPL device is usually a laser and produces coherent light. 
True 
False 
High Power versus Low Power
 
Light Facial Devices can be split into two groups for cosmetic applications; High 
Power (lasers and IPL) and Low Power (LEDs). These treatments have 
similarities and differences. Both treatments give the rejuvenation effects such as 
increased RNA/DNA synthesis and increased ATP production. The high power 
devices are a much better treatment for vascular conditions such as 
Telangiectasis, Varicose Veins and Spider Veins. 
 
The high power treatments use enough power to cauterize the vessels and they 
will be reabsorbed into the body. The Low Power devices do not have this type of 
power. Age Spots are melanocytes that have expanded beyond their normal size 
and acquire extra pigments. Low power treatments have the very positive effect 
of making some, but not all, shrink back to their original size. 
 
High power treatments use enough power to kill the melanocyte and it will float to 
the surface in 5 to 12 days and peel off like a scab during the normal skin 
renewal process. The chart on next page shows some of the differences between 
cosmetic treatments. 
 
32. High Power Light Treatments (Laser and IPL) are a better for vascular 
problems than Low Power Treatments. 
True 
False