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Cora is a fan of The Ordinary's Buffet + Copper Peptides 1%. They find it to be the best skin care product they have used for achieving a glowy complexion. Copper peptides are known to help with wrinkles and anti-aging, and they are an antioxidant similar to Vitamin C. Cora uses it during the day and then uses tretinoin at night. They love the product and The Ordinary in general.