The human hair follicle (HF) exhibits peripheral clock activity. with knock-down of clock genes (BMAL1 and PER1) prolonging active hair growth (anagen) and increasing pigmentation. Similarly. thyroid hormones prolong anagen and stimulate pigmentation in cultured human HFs. https://www.hindigyanvishv.com/hot-find-Facia-Installation-Kit-Suits-Holden-Commodore-VE-Series-2-FP9550BK-Black-top-mega/