By instru mental technique, it is concluded that CDBA-liposomes could not
only provide four-star UVA protective function, but also UVB
protective function, and could be used in winter, cloudy and summer morning and evening. The in vivo tests confirmed that the CDBA-liposome is a good protector under UV irradiation, which
demonstrated the potential of the CDBA-liposome as a new kind of sunscreen cosmetics.