The Prophet ﷺ said: Wear your white garments, for they are among your best garments, and shroud your dead in them. Among the best types of collyrium you use is antimony (ithmid): it clears the vision and makes the hair sprout. (Using translation from Abū Dāʾūd 3878)
قَالَ رَسُولُ اللَّهِ ﷺ «خَيْرُ ثِيَابِكُمُ الْبَيَاضُ فَأَلْبِسُوهَا أَحْيَاءَكُمْ وَكَفِّنُوا فِيهَا مَوْتَاكُمْ وَإِنَّ مِنْ خَيْرِ أَكْحَالِكُمُ الْإِثْمِدَ إِنَّهُ يَجْلُو الْبَصَرَ وَيُنْبِتُ الشَّعْرَ»