Invade Hot Spot contains the same premium microbes and ingredients as InVade Bio Foam. Apply Invade Hot Spot to cracks, crevices, or anywhere scum and organic debris accumulates. This convenient ready to use probiotic in a can will cling and stay on surfaced areas. As a probiotic, it eats into the scum to improve sanitation. The premium blend of microbes will digest the organic build-up and leave a citrus odor.