I have been taking these for about 8 months and so far I have only had one slight cold. That is a miracle for me as I usually catch everything that is going around. I have them delivered now once a month so I don't have to keep ordering them which is a bonus. I have recommended them to friends and family
I purchased these for a friend who got a mini ipad for Christmas. I thought there was only one in the pack - I didn't read it properly - but for less than £4 to receive 10 was a surprise. I tried one out on my tablet and phone and was very happy to say they worked far better than the one I got with my tablet. I would definitely recommend these to my friends. Very stylish too.