VEGAN FRIENDLY: This Synthetic Doubloon Shaving Brush by The Bluebeards Revenge is suitable for vegetarians and vegans. Its synthetic bristles are the best alternative to what would otherwise be an animal-derived brush. WHIPS UP A BARBER-GRADE LATHER: Just like traditional animal hair brushes, this synthetic bristle shaving brush promises to whip up an aerated lather worthy of any barber or discerning gent.