Dear Dr. Pickart/ skin bio,

Is putting CP serum, wait for a while than top up with exfol serum have a better effect on skin than mixing the 2 product?

If I was going to mix a drops of CP serum and Exfol serum, will it have a less effect on my skin?

Is just that sometime if I'm in a rush, I usually don't have time to wait 15-20 minutes between the product.

Thank you

I think you should use the two products at different times of the day.

But many people use them together. But sometimes this can be irritating to the skin so be cautious.

Thank you for the reply Dr. Pickart