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Protocol 2: Vitamin C derivative with copper peptides Goal: Use both ingredients while minimizing interaction Morning: Cleanse Apply THD ascorbate or ascorbyl glucoside serum Moisturize Sunscreen Evening: Cleanse Apply copper peptide cream or serum Allow full absorption Light moisturizer if needed Notes: By using a pH-stable vitamin C derivative in the morning and copper peptides only at night, you eliminate direct contact while capturing benefits of both
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Without it, you'd be using sterile water, which is strictly for single-use applications
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Journal of Dermatology and Dermatologic Surgery
