Use the conservative rule: reconstitute only what is needed, refrigerate at 2-8 C, protect from light, label the date, and discard around 28 days or sooner if the solution changes appearance or sterility is compromised
[PubMed] [Google Scholar] 26.Sikiric P., Gojkovic S., Knezevic M., Tepes M., Strbe S., Vukojevic J., Duzel A., Kralj T., Krezic I., Zizek H., et al
Important clarification: When the study states that the change in purity did not exceed 5%, it does not indicate a sudden or dramatic degradation
Animal studies [5] suggest localized injections may have greater effects on muscles, tendons and ligaments, but safety and efficacy in humans are still under investigation
Sublingual forms offer moderate absorption but lack strong research compared to tablets