I use this product and recommend this product for those looking for natural ways to boost the immune system when you are sick. I was looking for natural products to use when I have a cold or feeling under the weather. This one of my top most rated products in my medicine cabinet. I also carry this with me when I am traveling to keep my immune system up when I am in the airport and on planes and buses. Love this product and I use it frequently at times when I am most likely to get sick.