Before we can talk about storing it, we need to be crystal clear on what it is
Some report improved sleep quality or subtle increases in energy, though these could reflect placebo effects
Growth hormone is a potent driver of lipolysis (fat breakdown) and supports muscle protein synthesis, satellite cell activation, and lean mass maintenance (11)

According to a 2018 review, GHK-Cu as a cosmetic ingredient has demonstrated the ability to:3 Tighten loose skin Reverse age-related skin thinning Repair the skins protective barrier proteins Improve skin firmness and elasticity Reduce the appearance of fine lines and wrinkles Smooth rough skin Stimulate wound healing Lessen the appearance of photodamage (sun damage), hyperpigmentation, skin spots, lesions, and more Reduce inflammation and damage from free radicals Increase hair growth and thickness Additionally, in research from 2015, the authors noted that GHK-Cu may be able to stimulate collagen, regulate the skin remodeling process, attract immune cells to the site of an injury, and restore replicative vitality to fibroblasts (a cell that helps form connective tissue) in patients whove undergone radiation therapy for cancer.2 6 GHK-Cu isnt limited to topical/cosmetic forms, however

Hospira, now part of Pfizer, is recognised globally as a trusted manufacturer of pharmaceutical injectables and critical care solutions
By methodically working through these steps, you can isolate the variable that's causing the issue