injectable l-carnitine 500 mg/ml Viscosity matters for L-carnitine. Around 400-500 mg/mL, it's liquid enough for insulin syringes but takes time. Higher concentrations get very thick, needing larger needles. Too thin? It Kangsiyu 10/20pcs M3 M4 Size:20 Kilograms (44 lbs) soft skin drink
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