Regency Skin Care Lotions--One of the most known lotions...Olympian Dew, also known as Grecian Bloom Water...The main ingredient would probably be rose water, which is a well known astringent and would help close up the pores, making the skin appear finer. It might have been similar to the French toilet water Eau d'Ange (Angel's Water), which contained benzoin, known for its healing properties and to whiten the skin, rose water, sweet sedge (calamus) and orange water.
"Grace Elliot Dalrymple" by Thomas Gainsborough (1778) - "Grace Dalrymple was married very early to a rich physician but after a scandal she fled and ended up in England thanks to her benefactor Lord Cholmondery. She took many other patrons among whom the Prince of Wales future George IV who in turn introduced her to the Duc d'Orleans. Grace moved to Paris to be near her royal lover where she remained throughout the Revolution."