I’ve been using BioSwiss beta glucan for under a year now and so far so good! I haven’t gotten sick and love their customer service and product. It’s pure and potent with no fillers which is exactly what you want in any product, especially beta glucan! I’ve used many different beta glucan brands in the past so I know the difference and with this brand, I feel I have more energy and feel good overall! This product comes from Switzerland so you can trust anything that is produced in Europe and is of the utmost top quality! It is expensive but you don’t want to skimp on your health ever! Please give it a try and you won’t regret it. Thank you so much!