134 SasakiM.SasakoT.KubotaN.SakuraiY.TakamotoI.KubotaT.et al (2017)
Transparent documentation and consistent quality control
THF redissolved, add NaH (1.2-1.5eq) at 0~-10C, keep stirring at this temperature for half an hour, and distill ethyl bromoacetate 3 (1.2-1.5eq ) slowly drop into the reaction solution, remove the ice bath after the dropwise addition, and stir overnight at room temperature
The 2021 trial (PMID 34684429) explicitly concluded that supplementation beyond 35 days improved recovery and reduced fatigue across sex and age framing the five-week-plus window as where the effect is established rather than emerging
copper toxicity from cosmetic use has not been reported, but those with Wilson's disease or who are pregnant should seek medical advice
Sprzedawca nie ponosi odpowiedzialnoci za skutki wynikajce z uycia produktu niezgodnie z jego przeznaczeniem