摘要
A natural whitening agent to replace synthetic bioactives was developed.Xin Qi Bai(XQB)was composed of traditional Chinese medicine(TCM)and the whitening efficacy was tested in vivo.Qualified volunteers were selected and used cream with or without XQB for 8 weeks continuously.The individual type angle(ITA°),melanin index(MI)and the stain area(%)were tested after 0,2,4 and 8 weeks.XQB can increase ITA°value,decrease MI value and the stain area of skin.Results showed that XQB has good whitening efficacy in vivo,and is a natural whitening agent.
