Sleep & relaxation supplements

Biological timing and melatonin

The circadian clock organises rhythms close to twenty-four hours, including the sleep–wake cycle. Light received by the retina contributes to its synchronisation. Melatonin is a hormone produced by the pineal gland; secretion varies across the day–night cycle and increases during the biological night. This physiology explains its relationship with biological timing. A melatonin-containing formula therefore differs from a mineral preparation, even where both ingredients appear in one food supplement. Their presence describes different kinds of substances rather than interchangeable nutritional components.

Valerian, passion flower and lemon balm

Valeriana officinalis is commonly characterised through valerian root. Passiflora incarnata identifies passion flower, whose aerial parts are used in botanical preparations. Melissa officinalis identifies lemon balm, including its leaf. Whole plant powder and an extract are different preparations because extraction selects a fraction of constituents according to the process. Species, plant part and preparation therefore give concrete meaning to a botanical ingredient. The composition belongs to the particular material rather than an undifferentiated category of plants associated with relaxation.

Magnesium, vitamin B6 and combined formulas

Magnesium participates in enzyme reactions and neuromuscular functions. Vitamin B6 contributes to normal nervous-system function and several metabolic processes. These nutritional roles differ from melatonin’s hormonal signalling. Botanical–micronutrient combinations and formulas containing melatonin consequently have different composition profiles. Food-supplement status concerns a food and its documented claims; a nutrient property describes a physiological function rather than treatment of a sleep disorder. Identifying each ingredient preserves that distinction within capsules, liquids and other food matrices containing combined preparations.

Frequently asked questions