(3) A Bjartell, R Ekman, S Bergquist, and E Widerlv (1989) Reduction of immunoreactive ACTH in plasma following intravenous injection of delta sleep-inducing peptide in man Psychoneuroendocrinology, 1989, Volume 14 (Issue 5), Pages 347-55
After reconstitution , this sites protocol pages specify storage at 28 C (refrigerated) with use within 24 weeks
Only evidence can fill that
These limited reports suggest good tolerability, though the small sample sizes, lack of standardized safety monitoring, and retrospective or uncontrolled study designs limit definitive safety conclusions
With consistent use, Drift explains that the GHK-CU "helps reduce the appearance of fine lines, improve skin tone and hydration, and stimulate healthier hair growth, reflecting Drift's focus on easy-to-use, science-driven solutions for long-term beauty and healthy aging." There are minimal side effects, including "nasal irritation, inflammation, nosebleeds, and inconsistent dosing," according to Campbell