The Safety Of Low Level Laser Therapy For Hair Loss
Does It Have Any Risks? Is It Painful?

The low level laser hair loss therapy is safe, it meets all international safety standards of a non-significant risk product, and is classified as a Class IIIA cosmetic laser. The LLLT is no risk of any kind of burning to the scalp or any risk of skin cancer. The lasers are cold lasers and the lasers are used need less energy than a 40-watt light bulb. It has not radioactivity or dangerous energy, and do not have the thermal-component to cut, burn or vaporize. In January of 2007, the FDA approved the Laser Comb to re-grow hair, however, it was only approved for safety, apparently it was unclear to what extend the FDA reviewed or cleared it based on its effectiveness in treating hair fall, and it is a medical device that cannot be used in a salon.

The Safety Of Low Level Laser Therapy For Hair Fall. Does It Have Any Risks? Is It Painful?

A researcher, Andre Mester, was working at Semmelweis University, in Budapest. He developed a theory that was similar to the UV theory except instead of using UV lights, he used cold laser light. He believed that UV rays from the sun would lead to cancer and so would cold laser light.

Mester tested his theory but shaving the fur of two groups of mice in which he constantly exposed one group to cold laser light. The control group was not exposed to the cold laser light at all. To Mester's surprise, the mice did not develop cancer but instead grew back their fur much faster than the control group.


LLLT applications have already been in use for more than 30 years with no report of any serious safety issue. There is no real physical risks, however, the only real risk is that the effectiveness in treating baldness. Another regret fact of the LLLT is the results of hair restoration are not achieved instantly. A person needs to very patient in order to achieve effective results. The significant changes should be expected for 6 to 12 months.


LLLT a non-invasive procedure, painless and no hot. Treatment does not require anesthesia or sedation. The visible light from the laser equipment into the tissue without harming the skin and scalp. Each session can take up to 30 minutes and the feel very much like a comfortable warming sensation that is pain free.