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They are generally safe to take together, but it is best to consult with a healthcare provider before taking multiple supplements at once

Biological analyses were performed on plasma samples, quantifying total and reduced glutathione, oxidized glutathione and redox ratios using HPLC with colorimetric detection, while behavioral outcomes were assessed weekly through standardized caregiver questionnaires and clinician-rated scales

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A paper published in Nutrients concluded that taking both creatine and carnitine has a positive effect on muscle growth

While it is found in foods such as red meat, dairy products, avocados, and some fish, dietary intake is often not sufficient to meet higher metabolic demands, especially for athletes or individuals following vegetarian or vegan diets