Well, apparently it make your hair thicker, someone on german forums even wrote a number like 0.01mm or something lol.
I assume it works over inhibiting TGF-B2 as l-carnitine ( https://www.ncbi.nlm.nih.gov/pubmed/17927577 ) relates to potassium, BCAA as well as niacinamide, so there might be something going on here.