I recently incorporated a Vitamin C serum (Devita) into my routine and know I should wait 20 minutes before going on to the next step. I also use a water-based HA serum. I haven't been able to find out if I can mix the two serums together in my hand or if I have to wait the 20 minutes after the C before applying the HA serum. Used together, the C doesn't sting, and I feel like I'm getting better coverage because it's easier to spread. If I use them together, I then wait the 20 minutes before applying my SPF moisturizer.
My question is: Can I mix the two serums together or am I diluting the benefits of the Vitamin C by mixing it with the HA serum?
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