Melatonin content of a supplement product

HPLC-FLD analysis for determining the melatonin content of a solid or liquid (e.g. nasal spray) supplement product.

According to Regulation (EU) No 432/2012, melatonin supplements may be marketed with the following health claims:

• "Melatonin contributes to the alleviation of subjective feelings of jet lag." The claim can be used if the product contains at least 0.5 mg of melatonin per portion.

• "Melatonin contributes to the reduction of time taken to fall asleep." The claim can be used if the product contains at least 1 mg of melatonin per portion.