Biz is a "stain-activated booster" for washing laundry. Made by Redox Brands, Biz is available in both liquid and powder form. It is an enzyme-based bleach that breaks down proteins in a way that ordinary chemical bleach and detergent do not.
In addition, the product is often used in a non-laundry context for cleaning the tissue off bones, particularly skulls that have interior cavities difficult to scour by mechanical action. Biz is recommended by the Alaska state government and the FBI.
Biz was invented in 1968 by Charles McCarty, a researcher at Procter & Gamble. P&G sold the brand in 2000 to Redox Brands, a marketing company based in the metro Cincinnati area founded by former Procter & Gamble employees. Redox also owns the former P&G laundry detergent Oxydol.