Clinical Study on Itching Relief Caused by Dry Skin of Cosmetics Containing Ceramide NP and Guaiazulene in Smart Healthcare Products

Effects of Guaiazulene on Lipid Peroxidation and Antioxidant Defense System in <i>Drosophila melanogaster</i>

“…Gua, which is a cosmetic colorant approved by the FDA (Food and Drug Administration) in the USA, is used in skin -body care products, toothpaste, hair dyes, eye solutions, in the treatment of nipple irritation in nursing mothers and also to relieve itching caused by dry skin. In addition, photodynamic activation of Gua has been determined to suppress inflammation in peripheral blood mononuclear cells [4][5][6]. Azulene (AZ), a polycyclic aromatic hydrocarbon, and its derivatives, especially Gua, attract attention due to their various biological activities [7,8].…”