Priyanka Chopra's mother, Dr. Madhu Chopra, shared her DIY hair mask recipe at 73, featuring coconut oil, fenugreek, chia seeds, cooked rice water, and rosemary. This is part of her monthly hair-care routine, which she believes contributes to her thick and healthy hair. Rice water, rich in nutrients like inositol, is known to promote hair growth and reduce hair fall.