05-09-2013 05:31 PM
How do these compare to Perricone acyl and vitamin C?
I presume the 15% C is more than Perricone's vitamin C serum that can be used in the day time.
They are expensive but much cheaper than perricone.
The top value of C products is only a little bit more than buying the serum by itself.
Also, can both of these be used together (day and night)? Also, thinking about combining with Dr. Gross Ferulic Acid Retinol or is that overkill? Does the Gross Ferulic also have vitamin C?
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