Which brand of propolis is the best?

Last year, CCTV reported that nearly 70% of propolis products in China were suspected of counterfeiting. It's really hard to tell the difference between true and false propolis. However, Liang Heng propolis is quite famous in Zhejiang. My family has been buying Liang Heng propolis, which is genuine. It's still trustworthy. Ask for recommendation!