say their product helps clean and unclog the pores releasing hair
fiber trapped underneath the scalp skin. Apparently the claim is
that the openings of hair follicles get clogged with sebum. This
clogging stops the hair fiber from getting out. The fiber then grows
under the skin. Removing whatever is plugging the hair follicle
will release the hair growing underneath.
If hair was growing underneath the skin it would effectively be
an ingrowing hair. This would result in extensive inflammation for
anyone with areas of hair loss. Also, alopecias have been researched
by taking skin biopsies from volunteers with the condition. These
biopsies are then processed histologically for analysis under the
microscope. In the long history of alopecia research there has never
been any evidence of alopecia from hair being trapped under the
skin due to pore clogging.