Ban Labs Ltd. Offers Patchouli Soap. Ban Labs Ltd. Is a WHO-GMP, ISO 9001:2000, GPP, GLP certified organization and is the manufacturer, marketer and exporter of ayurvedic & herbal medicines, health & beauty care and hair care products. This Patchouli Soap is mainly used in rejuvenating damaged skin and moisturizing it. The Patchouli soap is suitable for sensitive, dry and chapped skin and is offered in 75 gm packs.