During the 15th century, Amirdovlat Amasiatsi wrote "Useless for the Ignorant", an encyclopedia of 3,500 Armenian plant and herbs that he translated into five languages to make it more understandable for laymen. Some of the Armenian herbs that Nairian incorporated in their skincare products are Rosehip Seed, Lemon Basil, Rose, Sea Buckthorn, Tarragon, Yarrow, Garden Sage, Lemon Balm and Calendula.