# 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.



[Read the paper](https://pubmed.ncbi.nlm.nih.gov/?term=Melatonin+natural+health+products+and+supplements:+presence+of+serotonin+and+significant+variability+of+melatonin+content)

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Educational summary of published research, not medical advice. Screening scores are not diagnoses. If a score is elevated or you feel unwell, talk to a clinician.

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