Fig1 SerumHAconcentrationaftermultipl‐doseof HAsolutionfor8d ﹒ n = 6,x ─±sNotes:serumHAconcentrationbeforeoralad.Theaboveresultsdemonstratedthate HA ’ spoolofskinafteroraladministrati ﹒ Butitwasstillunclearwhytheconten HAwasdecreased ﹒. ......