Good quality product; I initially purchased this supplement (Sinus-B) to get help with a newly developed sinus/allergy issue that started this year, while I haven’t received significant improvement in THAT area, even after taking these for over a month now, I reordered 2 more bottles based on the overall well-being I experience from taking it. The products’ ingredients contain many of the herbs I highly value. In that respect, I give 4 stars, holding back on the fifth one in hopes that I’ll eventually experience some improvement, or I find something else that may work more effectively with my sinus issue.