i've got one more question...pls...
we are studying the effecacy of using gensing root oil on dry hair...the problem is, if we are going to use any person, we cannot control the person's activities...like, going outside their house...and the like.
we are wondring if we can get the same result if we are going to use hair strands only....
do you think it would be possible?
thanks, buddies!

