Is 18α-Glycyrrhizin a real natural product? Improved preparation of 18α-Glycyrrhizin from 18β-Glycyrrhizin as a positive standard for HPLC analysis of licorice extracts
The effect of ingesting of foods containing Laurus nobilis leaf extract(LAURESH®) on oral environment in healthy subjects —A randomized, double—blind, placebo—controlled parallel—group comparison study—