You can request a Certificate of Analysis from the compounding pharmacy, which documents testing of the batch
Scientists have shown L-Carnitine Tartrate powder to provide the following benefits: Studies show that L-Carnitine plays a vital role when organisms require energy, as it acts as a key driving force for the transportation of fatty acids into the mitochondria
Summary Keywords metabolic myopathies, long-chain fatty acids, muscle fatigue, mitochondria, peroxisome, resistance exercise, dietary supplements, muscle pain and rhabdomyolysis Citation Negro M, Cerullo G, Parimbelli M, Ravazzani A, Feletti F, Berardinelli A, Cena H and DAntona G (2021) Exercise, Nutrition, and Supplements in the Muscle Carnitine Palmitoyl-Transferase II Deficiency: New Theoretical Bases for Potential Applications
At that point, you will need to switch to a 3 mL syringe or split the injection into two separate sites