Aquamarine Gemstone Soap Aquamarine Gemstone Soap with peppermint and neem oil is a pleasantly cooling and refreshing soap for combined and inflamed skin. The essential oil of peppermint helps to normalise the production of sebum and to narrow the pores. Aquamarine Gemstone Soap is a replica of the real stone, reproduced in a high quality soap. You can also buy this cold gemstone soap in the sets ?Äö Secrets of Arabia 4 and Secrets of Arabia 7.