The basics Welcome to Fleet Street Bloodworks - the most unique theatrical blood on the market.  The benefits Made from FDA approved pigments, Fleet Street Drying Blood stays moist looking, even when dry.  The uses Designed for use on both skin and hair, they stay where they're placed, without migrating or dissipating as the day wears on. The bottom line Fleet Street Drying Bloods allow the makeup artist to layer the bloods to get a deep sense of color and realism.