Tankankhar (Borax or Sodium Borate) has traditionally been used in small quantities in some Ayurvedic and Unani remedies, but its safety and efficacy remain controversial, especially from a modern scientific and toxicological perspective.

• Sodium borate is classified as a toxic substance in many countries when ingested or used improperly.

• Long-term exposure or ingestion can lead to kidney damage, hormonal disruption, and reproductive toxicity.

• It’s banned in food products in the U.S., European Union, and several other regions due to these health concerns.