A physician-directed protocol typically moves through these stages: GHK-Cu works through cumulative collagen synthesis and gene expression changes, not surface-level effects
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The kit is designed for NGS library construction from 25 ng to 1 g of total RNA and depletes both cytoplasmic (5S, 5.8S, 18S and 28S) and mitochondrial (12S and 16S) ribosomal RNA species
(PubMed) Hager K, Marahrens A, Kenklies M, Riederer P, Munch G
Reconstituted injectable GHK-Cu: 2-8C (refrigerated): 28-30 days stable 15-25C (room temp): Degrades in 3-7 days 30C (warm): Degrades in 24-48 hours Topical serum (opened): 2-8C (refrigerated): 6-12 months 15-25C (room temp): 3-6 months 30C (warm environment): 1-3 months Raw powder (sealed): 2-8C (refrigerated): 24-36 months 15-25C (room temp): 12-24 months 30C (warm): 6-12 months Key takeaway: Every 10C increase in temperature roughly doubles the degradation rate