I have been using it for years. Best catfish bait ever. Only problem was finding it. Found it online by case free ship. If u have never used it give it a shot.
https://www.shopdunns.com/mobile/products/6658/sonny_s_blood_formula_4_45oz_pails/
https://www.shopdunns.com/mobile/products/6658/sonny_s_blood_formula_4_45oz_pails/