The Persona Zayn Amla Hair Oil gives hair a rich natural shine. It is enriched with the goodness of Amla which helps enhance hair growth and strengthen hair roots. Details. Description Give your hair the Amla care with the Persona Amla Hair Oil. Description: With real Brahmi and Amla. Arrests hair fall. Cures itching and rashes of the scalp. Removes dandruff and promotes healthy hair.