This month’s survey of recent patent and research literature describes moneymaking ideas for personal care product development including water-induced thickening of hair, surfactant/biopolymer mixures, a foam/aerosol hair conditioner, and yeast glucan carriers, among others.
Skin and Skin Care
Magnesium ascorbyl phosphate in skin lightening: Nakama et al. indicate that magnesium ascorbyl phosphate (MAP) inhibits the transfer of melanin granules from melanocytes to keratinocytes.1 In skin lightening, this transfer is important to control and many studies have been conducted regarding the transfer mechanism of melanin granules; however, few studies have examined the mechanism of intercellular adhesion between melanocytes and keratinocytes. These researchers investigated the role of epithelial cadherin (E-cadherin), a cell adhesion factor, on the UV-induced acceleration of melanin transfer, revealing that nitric oxide, a skin melanogen induced by UV irradiation, accelerates the transfer of melanin granules from melanocytes to keratinocytes. Furthermore, nitric oxide was found to up-regulate the expression of E-cadherin mRNA in human melanocytes and kerati