Skeptical I ordered these capsules. Now I take it already 4 weeks. We have cold season and I was constantly sick every year. Even if only one was sick in my area, I had it immediately. Professionally I can not afford a failure and so I took these capsules. Yes, they help and how! I had not thought of. All around me are all sick for weeks. I feel fit as a fiddle and I am quite healthy. I have already recommended these capsules, and I will now take time colds each year. 5 * is still too little. The price is right and therefore from me a very strong buy recommendation!