is sterile water and bac water the same Bacteriostatic vs Video Bacteriostatic (BAC) Water for Peptides:

Its stability, low systemic activity, and peptide-based nature make it well-suited for ongoing research into long-term metabolic modulation and regenerative health applications

Patients on clinical GHK-Cu protocols report improved skin texture and firmness, faster fading of pigmentation and minor scarring, and a fresher overall quality to their skin that tends to develop gradually over a full treatment cycle

Introducing synthetic peptides adds unpredictable variables

Researchers measured blood levels of homocysteine, folate, and vitamin B12, then evaluated participants' fatigue and motivation using the Chalder Fatigue Scale questionnaire and a Visual Analog Scale