research Procyanidin B‐3, isolated from barley and identified as a hair‐growth stimulant, has the potential to counteract inhibitory regulation by TGF‐β1
This study found that procyanidin B-3, a compound isolated from barley extract, may promote hair growth by enhancing hair epithelial cell growth and counteracting TGF-β1's growth-inhibiting effects in vitro and in vivo.
