The Messenger of Allah [SAW] said: "One of the best kinds of kohl that you use is Ithmid (antimony); it brightens the vision and makes the hair (eye-lashes) grow."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنَّ مِنْ خَيْرِ أَكْحَالِكُمُ الإِثْمِدَ إِنَّهُ يَجْلُو الْبَصَرَ وَيُنْبِتُ الشَّعَرَ قَالَ أَبُو عَبْدِ الرَّحْمَنِ عَبْدُ اللَّهِ بْنُ عُثْمَانَ بْنِ خُثَيْمٍ لَيِّنُ الْحَدِيثِ