ghk-cu for collagen Peptide Anti-Aging & Support - Copper Peptides Serum for Face GHK-Cu Copper Peptide | Collagen,

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

10.1016/S1474-4422(08)70116-9 Lancet Neurol

Dermatologists estimate that up to 90% of visible skin aging is caused by UV radiation and Florida's near-constant sunshine means cumulative photodamage accumulates faster here than virtually anywhere else in the country

PMC Goldstein AL, Hannappel E, Sosne G, Kleinman HK