Mndez-Snchez N, Valencia-Rodrguez A, Coronel-Castillo C, Vera-Barajas A, Contreras-Carmona J, Ponciano-Rodrguez G, et al
Stored correctly, an unopened Ghk-cu Cosmetic vial, typically kept in a cool, dark place (refrigeration is often recommended for long-term storage, even for lyophilized peptides), can last for an extended period
Newborns (especially preterm) lack the ability to metabolize benzyl alcohol, leading to metabolic acidosis, respiratory distress, hypotension and (in reported cases) the often-fatal gasping syndrome. For this reason, only preservative-free sterile water (no benzyl alcohol) is used in pediatric or neonatal care
Pregnant or breastfeeding
Further long-term data will be critical to understanding sustained benefits and safety