Chyavana
Chyavana (Sanskrit: च्यवन, romanized: Cyavana) was a sage (rishi) in Hinduism. He was a son of Bhrigu, also known as Bhrigu Varuni in the Upanishads, and is known for his rejuvenation through a special herbal paste (ayurvedic jam) or tonic known as chyavanaprasham, which was prepared by the Ashvins.