A great rishi, husband of beautiful wife Sukanyā whom Ashvins beheld at her bath. Chyavana was a rishi in Hindu mythology. He was son of Bhrigu and is known for his rejuvenation through a special herbal paste known as Chyawanprash, which was first prepared for him some 10,000 years ago, at his Ashram on Dhosi Hill. According to the Mahabharata, he was powerful enough to oppose the Vajra of Indra and was responsible for the Ashvins getting their share of the sacrificial offerings. He created a demon, Mada, to achieve it.
Chyavana is mentioned in the Rigveda as Chyavāna. He is described as an aged and feeble person whose youth and strength was restored by the twin Ashvini Kumar brothers, who were the Rajya Vaids or 'State Doctors'. According to a hymn of this text (X.61.1-3), Chyavāna seems to be opposed to Turvayana, an Indra worshipper Paktha king as he was closer to the Ashvins.
According to one tradition, he married Vaivasvata Manu's daughter Arushi and their son was Aurva. According to another tradition, he married Sukanya, daughter of Vedic king 'Sharyati' and granddaughter of Vaivasvata Manu. They had two sons Apnavana and Dadhicha. He is also considered as father of Harita.