There is no specific date of expiration for Ayurvedic products based on the Vedic teachings. The concept as explained is about the period of full potency, or Veerta Avadahi.
The period of potency varies according to the format of the formulation, which can be up to a few years. It is very interesting to note that the period of full potency of fermented liquids (Artishta) does not reduce its full efficacy over time.
Based on the technical requirements of modern dosage forms, the expiry dates are given on the packaging for consumer preference. You may locate this date on your product package.