in the chaper on my skintype, Dr B recommends mixing a retinoid with serum. I tried.....got clogged pores from the silica in the serum. With winter coming I would need to slap this stuff on anyway if using retinoids. So, would it be OK to just mix the retinoid with the cream? It might be the only way for me to actually use triLuma every single day of the 8 weeks I am on it.

I plan to use Cetaphil cream, if it matters.... ???