Sleep Zen® - Sleep Hot Chocolate (600g)

Magnesium glycinate is a form of magnesium combined with the amino acid glycine. Sleep Zen® - Sleep Hot Chocolate contains 1,000 mg of magnesium glycinate, providing 180 mg of elemental magnesium per serving.

Magnesium is involved in numerous processes within the nervous system and muscles. Research has also investigated the relationship between magnesium supplementation and sleep, with some studies reporting improvements in sleep-related outcomes, although systematic reviews note that the overall clinical evidence remains mixed and more robust trials are needed.

Glycine is an amino acid naturally produced by the body and involved in a range of biological processes, including functions within the nervous system.

Human research has investigated glycine taken before bedtime, with studies reporting improvements in subjective sleep quality and some measures of next-day fatigue and alertness.

However, studies commonly used 3 g of glycine.

L-Theanine is a naturally occurring amino acid found primarily in tea leaves. It has been studied for its relationship with relaxation and sleep without acting as a conventional sedative.

A 2025 systematic review and meta-analysis covering 19 studies and 897 participants found that L-Theanine supplementation improved several subjective sleep outcomes, including sleep onset latency and overall subjective sleep quality, although the researchers noted that further research is needed to establish optimal dose and duration.

A 2026 systematic review of standalone L-Theanine trials found that 200–450 mg/day appeared promising for supporting healthy sleep in adults, although the authors called for more high-quality research. Sleep Zen® - Sleep Hot Chocolate provides 250 mg per serving, placing it within that range.

Valerian is a flowering botanical whose roots have been traditionally used in herbal preparations. Sleep Zen® - Sleep Hot Chocolate contains a concentrated 4:1 extract of Valeriana officinalis.

Valerian has been widely studied in relation to sleep, but the findings are inconsistent. Some research suggests potential benefits for sleep-related outcomes, while other studies have not found meaningful effects. Current evidence therefore does not establish valerian as a treatment for insomnia.

Inositol is a naturally occurring compound found in the body and in a variety of foods. It plays a role in cellular signalling and other biological processes.

Inositol is involved in intracellular signalling pathways used by cells to respond to different chemical messengers, including pathways within the nervous system.

GABA, or gamma-aminobutyric acid, is a naturally occurring neurotransmitter in the nervous system. It is known as the body's primary inhibitory neurotransmitter.

GABA helps regulate communication between nerve cells by reducing neuronal excitability. Because of this role, GABA is closely associated with the body's mechanisms for maintaining balance within the nervous system.