Androgenetic alopecia, the most common type, affects 50% of males over the age of 40 and 75% of females over 65. Only two drugs have been approved so far (minoxidil and finasteride) and hair transplant is the other treatment alternative. This review surveys the evidence for low-level laser therapy (LLLT) applied to the scalp as a treatment for
ISO60825 does NOT tell the difference between coherent and incoherent light. You tread an LED exactly as you would a laser: if you apply ISO60825 and determine that the light dose from your LED is intrinsically safe (i.e. class 1), then this is a sound indication, aside from in severe cases of the diseases I mention above. The other factor I
Red light is known to have a mitogenic effect based on its ability to activate cell division at certain spectral and dose ranges in vitro. 7 – 9 We are aware only of two studies on the effects of LLLT on cancer. 10, 11 Revazova demonstrated the acceleration of tumor growth by 633 nm laser irradiation at 3.5 J/cm 2 three times per week for 2 week
Even though cancer is not considered a valid concern, there are some other risks associated with UV light teeth whitening. UV instruments are powerful and applying the light for too long or directing it in the wrong spot can damage soft tissues. It can cause sensitivity or even mild burns on the lips, gums, or tongue.
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can red led lights cause cancer