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Lifestyle Factors: Smoking: Smoking can accelerate skin ageing and contribute to skin discolouration due to decreased blood flow and oxygen delivery to the skin
Commercial serums offer 12-24 months unopened shelf life with professional preservative systems and 6-12 months post-opening depending on packaging (airless pump best), while DIY serums last only 1-2 weeks refrigerated without professional preservatives
Goal: Investigate dual growth-hormone-axis stimulation and body-composition effects theoretical synergy that is not validated for this blend
Furthermore, GHK-Cu may reduce the appearance of lesions and acne scars
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