I have seen a few that worked fine ,i am talking about beard hair by the way .
Apparently chest hair is harder work as you have hairs spread out in a larger area etc .
I am getting a 3500 graft FUE in october where i will have 1000 grafts of beard hair on the crown as my donor hair is not the best .
Another thing i heard is that 1 beard hair will cover an area that 2 head hairs would cover due to its thickness which is a bonus .
Another thing about beard hair is you get less shock loss .
Obviously beard hair can only be used in certain parts of the scalp but i know a doctor that had to build a hairline in a VERY extreme case .