Since a common side effect of taking a GLP-1 is tiredness, reducing caffeine intake seemed like a proactive way to avoid compounding fatigue and to support better overall energy levels
Low-quality products can contain contaminants or synthesis byproducts that cause adverse reactions, which can be easily mistaken for inherent GHK-Cu contraindications
[DOI] [PMC free article] [PubMed] [Google Scholar] 77.Malhotra A., Grunstein R.R., Fietze I., Weaver T.E., Redline S., Azarbarzin A., Sands S.A., Schwab R.J., Dunn J.P., Chakladar S., et al
Many other manufacturers use magnesium stearate as a release agent during production
Given the short half-life, twice-daily dosing provides additional exposure compared to once-daily protocols at the same total dose