I am a pharmacist who works in retail and have for over 40 years. Products for cold relief come and go. I started using Cold-EEZE about 3 years ago and it is the ONLY product that I recommend for cold relief. I do recommend other products for specific symptoms but for the whole cold ONLY Cold-EEZE. In my personal use of the product I have found that it shortens the duration and lessens the symptoms. I wish I could find a product this good in other categories to both use and recommend. Thank you for making this available.