Ban Labs Ltd. Manufactures Hibiscus Soap. Ban Labs Ltd. Is a WHO-GMP, ISO 9001:2000 certified GPP, GLP certified organization and is the manufacturer, marketer and exporter of ayurvedic & herbal medicines, health & beauty care products and hair care products. The Hibiscus Soap is useful in hot summer days. Hibiscus acts as a cooling herb which cools the pores of the skin in hot weather. This is also useful for dry and rough skin and is presented in 75 gm packs.