De Vergulde Hand Shaving Alum Stone is a stone to stop bleeding. Made with natural kalanite crystal containing potassium alum, an effective astringent, it also heals and calms after shaving.The name De Vergulde Hand originates from a soap factory in Amsterdam founded in 1554 by Frederick de Vrij. Present on the market for over 460 years, it is the first officially registered Dutch brand. A forerunner in the field of shaving, it offers a range of extremely reliable and high-quality products that are hypoallergenic and dermatologically tested.