Very refreshing (keep them cold for the summer!) and I am totally enjoying the 28 day challenge concept. It gives me a reason to just stop, enjoy and take a few minutes out of the day for myself, and I appreciate that. All four flavours in the challenge pack taste great and are full of all the good things we want for our skin health! I do see a difference in my skin tone overall. I am overall very happy with the RAD8 product.