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Genetics influence how quickly collagen degrades and how efficiently the body produces new structural proteins

Refunds and guarantees Life Extension offers one of the most generous return policies in the supplement industry: a 365-day money-back guarantee that applies even to opened bottles

Soothing ingredients like allantoin and panthenol calm redness and irritation, making it gentle for Sensitive Skin

This is especially valuable in a category like GHK-Cu peptide serum, where the product can be positioned as premium and science-led, but the brand still needs to validate whether its audience responds to the concept, price point, and packaging presentation