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02-05-2012 10:51 AM
I just read on the SkinBiology forum that Zinc Oxide containing sunscreens should not be used with Copper Peptide products as it may inactivate the CP. Titanium Oxide containing products are OK. This might be specific for SkinBiology products only.
I find it strange I had to dig around for this info. It wasn't on the product page and instructions say to use CP in the am. Bummer because the BB I've been using contains this primarily as the sunscreen, and the three bottles of unopened suncreen I have contain Zn Oxide. So I am going to switch the CP to evening to be sure I get the greatest efficacy.
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