I first came in contact with Drink HRW when I was listening to a podcast about Hydrogen supplementation. I decided to try this product specifically because it just came out. I loved that it had benefit on my metabolic health as well as immune system. I drink this everyday and I find the raspberry flavor refreshing. I did not know if it was making a difference however a day that I felt run down and had a small headache within 20 minutes of drinking this I felt 100% better. I then made it for my fiancé when she was feeling the same way and she commented that she felt so much better.