Evaluated Alternative Effective acidic cleaning agent - replacing hazardous acids/corrosion inhibitors Bio Gen Active® Scale 131 offshore is an effective, high concentrated acidic cleaning agent, mild to the user, material and to the environment. The product is classified as PLONOR (Posses Little Or No Risk to the environment). The product contains Bio Gen Active®, a 100 % natural, health and environmentally optimised substrate derived from whey. It can replace strong acids with hazardous properties that need environmentally problematic corrosion inhibitors.