Lauki is a Hindi word for the bottle gourd plant. The botanical name is Lagenaria siceraria (synonym: Lagenaria vulgaris). It has been cultivated in India since early times. Lauki (Bottle Gourd) has been a staple in the Indian kitchen and in Indian cuisine for centuries. in modern western culture, its medicinal and cosmetic uses are virtually unknown – even though it’s better known as calabash. While Lagenaria siceraria juice has been ingested since ancient times for a variety of medicinal uses, it can also be applied externally to the hair. It’s believed to prevent gray hair and hair fall; also thickens and improves overall condition of hair, causing it to become healthier.