• Histogen Inc., of San Diego, said preliminary data from an ongoing Phase I/II study showed that its Hair Stimulating Complex (HSC) produced statistically significant improvement across all targeted hair growth parameters, with an 86 percent responder rate. The study tested HSC in 56 men with androgenetic alopecia and also was well tolerated, with no study-related adverse events reported. Data were presented at the International Society of Hair Restoration Surgery meeting in the Bahamas.