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Produced in small batches under controlled conditions, each lot is supported by verified COAs to ensure purity, consistency, and quality for research applications

If youre considering supplementation, look for L-carnitine tartrate or acetyl-L-carnitine, as these are the most bioavailable forms, and consult a dietitian or healthcare provider to ensure it aligns with your performance goals

Samples were derivatized with o -phthaldialdehyde (OPA) and separated on a C18 column by gradient elution using 0.05 M potassium phosphate buffer (pH 7.0) 3.5 % (vol/vol) tetrahydrofuran mobile phase without or with 40 % (vol/vol) acetonitrile

Extracts were vortexed for 30, freeze-thawed three times, centrifuged at 21,000 g for 15 min at 4 C and the supernatant transferred to new tubes

However, caution is warranted when interpreting the results as this study assessed the cardiovascular fitness instead of physical activity, suggesting potential protective effects in at-risk populations [77]