Tor-Bac is a brand of bacteriostatic saline: a sterile solution of 0.9% w/v sodium chloride and 0.9% w/v benzyl alcohol (9 mg/ml each) in water for injection
The study was approved by the Local Ethics Committee at School of Medicine (University of Zagreb, Zagreb, Croatia) and experiments were assessed by observers unaware of the given treatment

Commonly Reported Research Observations Injection-site redness or irritation Temporary swelling or warmth sensation at the administration site Burning or stinging during administration Temporary skin sensitivity or irritation Mild headaches Temporary fatigue or tiredness Mild nausea Temporary itching or flushing sensations Temporary blue-tinted discoloration beneath the administration area in some research settings Copper-Related Research Considerations Because GHK-Cu is a copper-binding peptide, some research protocols may monitor for: Copper- and zinc-balance variability Increased sensitivity in higher-frequency protocols Temporary skin-related response variability Individual differences in antioxidant-response pathways Research involving prolonged or higher-frequency protocols commonly investigates the inclusion of: Zinc supplementation Vitamin C supplementation alongside GHK-Curelated research models

It is made by boiling water and letting the pure water vapor condense in a new container, leaving anything that is not H 2 O behind
References 1.Seiwerth S, Brcic L, Vuletic LB, Kolenc D, Aralica G, Misic M, Zenko A, Drmic D, Rucman R, Sikiric P