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Yes, combining the two can be beneficial

Are Copper Peptides Fully Proven

Cost-Benefit Analysis While copper peptides may initially seem more expensive than basic anti-wrinkle creams or home remedies, they often provide better value when considering: Multi-targeting Approach: A single copper peptide product can address multiple aging concerns, potentially replacing separate products for firming, antioxidant protection, and repair

Glutathione allows the body to counteract the harmful effects of free radicals while enabling other antioxidants, such as vitamins C and E, to join the combat

J Young Pharm 1(1):82

Wang X-Y, Qu M, Duan R, Shi D, Jin L, Gao J, et al