I-Ferulic acid ikhona kakhulu ezitshalweni zemvelo, enegama lekhemikhali i-4-hydroxy-methoxycinnamic acid.Itholakala emithini yendabuko yaseShayina ehlukahlukene njenge-Angelica sinensis, i-Ligusticum chuanxiong, i-Equisetum, ne-Cimicifuga ezitshalweni.I-Ferulic acid ine-spectrum ebanzi izakhiwo ze-antioxidant, zingavimbela umsebenzi we-melanocytes ne-tyrosinase, futhi ine-anti wrinkle, anti-aging, whitening, anti-inflammatory kanye neminye imiphumela.Ibuye isetshenziswe kabanzi emikhiqizweni yelanga.