since this comes up quite oftern i thought i would just post a short blog stating a few diferance in this subject . i do not have enought time now to post all so here are a few points
their are diferance between machines some work at 15 hz some at 13hz and some at 27 hz
the hair must be caught at the anagen phase of growth their are three other phases canagen and telagen
the 27 hz machine is ment to work at anagen and canagen of the growing cycle of the hair
their are a few diferant types of needles too this can affect also
the tecneque to most use a flash tecnique in high frequance thei is also a galvanic this is slow and a blend of the both
after this you can get some blocheness from the theropy this can be helped with an omilux light amoung other things
you can use laser this works mainly on dark hairs laser works in light sheer and ipl are two diferant types
their is a new one out from the book it is not laser thu it is as laser is only atraced to dark pigment in the hair this new laser is ment to work on white hair some people have given good results with this but it is new and must work diferenly from the normal laser for it to work.
i must duck out now
for more advice just pm me if you like .
all the best