Andrew Pears complexions. After much trial and error he found a way of removing the impurities and refining the base soap before adding the delicate perfume of garden flowers. His product was a high-quality soap, and had the additional benefit of being transparent. Soap refined in this way is transparent and makes longer-lasting bubbles. The transparency was the unique product plus that established the image of Pears soap. His method of mellowing and ageing each long-lasting Pears Bar, for over two months, is still used today where natural oils and pure glycerine are combined with the delicate fragrance of rosemary, cedar and
Soap chemical works at Tipton, for the manufacture of alkali from the sulfates of potash and soda, to which he afterwards added a soap manufactory. The method of extraction proceeded on a discovery of Keir's. Andrew Pears started making a high-quality, transparent soap in 1807 in London. His son-in-law, Thomas J. Barratt, opened a factory in Isleworth in 1862. During the Restoration era (February 1665 – August 1714) a soap tax was introduced in England, which meant that until the mid-1800s, soap was a luxury, used regularly only by the well-to-do. The soap manufacturing process was closely supervised by revenue officials