» I was browsing through som patents and found this one :
» PHOTODYNAMIC THERAPY FOR THE TREATMENT OF HAIR LOSS
» Besides laser/light (whatever they use) they apply some topical before the
» treatment. Three months after only one session they reported an average of
» 8 % hairgrowth in a group of ten people. Dont know why they did not
» perform more than a single treatment, maybe that is all growth it is
» capable of.
» If I knew who performed this perticular treatment I would consider giving
» it a shot.
I haven’t gone through the entire paper in detail but 8% count increase compared with -1.7% in only 10 human males does not sound meaningful. Since the rest of their tests are on mice BODY hair.
Depending on who is doing the counting, say each 1cm^2 of scalp has 100 hairs. So you counted 108. vs 98.3. If you are just short by 1mm on one side of the square, you are already counting 10% less hairs. .9 cm * 1 cm. If you are off by half a millimeter extra on one side, you are already going to have 5% increase in your counts.
I can’t believe they are filing for a patent with only 10 test human subjects. but this is my first impression. if anyone has more patience to go through the patent in detail please correct my mistakes.