Renal Essentials is recommended to support and maintain proper kidney function and mineral balance. Formulated and approved by our veterinary review board, Renal Essentials contains necessary nutrients, minerals and vitamins that support kidney and liver function, normal detoxification, normal fluid retention and renal circulation. Our formula includes Astragalus Root Powder for immune function and kidney circulation- Rehmannia, a Chinese herb that supports normal urine flow- Nettle Seed Extract, supports the immune system and balanced fluid retention- Cordyceps Sinesis Extract which supports the immune system and a normal detoxification process.