How Laser Hair Removal Works

Name: How Laser Hair Removal Works
Uploaded: 2024-12-19T13:00:07+00:00
Duration: 44 s
Channel: Dr. Charles Mok
Description: Dr. Charles Mok explains why laser hair removal needs multiple sessions. At any time, 80% of your hair follicles are inactive, so you need about 5 to 6…

19 Dec 2024 · 1 min

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0:44

Dr. Charles Mok explains why laser hair removal needs multiple sessions. At any time, 80% of your hair follicles are inactive, so you need about 5 to 6 treatments over a year to get roughly 80% permanent reduction. Modern lasers treat larger areas than the old 10mm spot treatments.

Questions this video answers

About 10 millimeters by 10 millimeters (with a little overlap).

About 80%.

Usually five or six sessions.

Over about a year or so.

Typically an approximately 80% permanent reduction in hair.

Chapters

Then we have to figure out the dosage of the particular wavelength for the given area over a given period of time for it to work. Now the original hair removal was a single shot in a spot, let's say about 10 millimeters by 10 millimeters and a little bit of overlap. We'd shoot, shoot, shoot, shoot and then it just be one time. One pass took a lot of time and fairly uncomfortable because you're having to put so much energy into that single spot to kill a hair follicle. But it worked and it led to permanent reduction of hair. Now the hair reduction has got to be done usually five or six sessions because your hair grows in crops. So at any given time on your body about 80% of your hair follicles are not active. The ones that are active are targets for laser and if you do this over a year or so you'll be able to get most of them and have typically an 80% permanent reduction in hair.