SBL Private Ltd. Manufactures Soap with Berberis Herb. SBL Private Ltd. Is an ISO 9001: 2000 awarded company that also manufactures homoeopathic remedies including generics, single remedies, bio-chemic/combinations, as well as specialities. Soap with Berberis Herb is effective for curing pimples and acnes. The soap clears the complexion. It is contained of Berberis, which is a native herb of USA. The herb is commonly known as Mountain Grapes. The soap makes the skin smooth and rejuvenated. It is available under the brand name of Silk` n Stay. It is offered in 75gm packs.