I actually tried the red one before and it's my fav. pads now to use as a toner at night time. I was curious about this blue one so I'm very glad that they had this combo which I could try both. I would suggest to use the blue one during the day and the red one at night because the red one has salicylic acid which is not good to use when you're under the sun during the day. So for me, blue at day and red at night for my daily routine.