is injectable l carnitine bullshit liquid injection L- carnitine has been studied fairly extensively. And the current consensus Day 1 Pre-Workout Stack Review
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4 The concentration of carnosine in transparent crystalline lenses detected was about 25 M
Bibcode:2015PLoSO..1019479L
R.HaqA.et al (2018)
Nevertheless, the mechanisms underlying the benefits of L-Carnitine remain unknown