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Melatonin natural health products and supplements: presence of serotonin and significant variability of melatonin content
Erland LA, Saxena PK · Journal of Clinical Sleep Medicine 13(2):275–281 · 2017
Key finding
Actual melatonin content ranged from −83% to +478% of the label; 26% contained serotonin — buy third-party tested.
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