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Dermalogica booster + vit.C
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cbrooke
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Mon Jul 04, 2005 10:01 am      Reply with quote
Can I mix Dermalogica's Extra Firming Booster with my LRP Active C (at night) hmm
betterat40
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Mon Jul 04, 2005 5:04 pm      Reply with quote
Be careful about mixing C with other products. C serums work best at fairly low ph's (acid). Creams, lotions are at higher ph's which make the C less effective, less able to penetrate the skin. I'd use your C first and then apply the other products.

The only exception I have heard about is using a glycolic acid to prep the skin for C. Since the glycolic removes dead skin, etc., the "new" skin is more receptive to the C.
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Fri Oct 18, 2019 7:53 am
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