Where an ingredient has strong human research behind it, we cite it. Where we have included something on mechanism and sense while the research catches up, we say that plainly. You should always be able to tell which is which.
Population diet surveys put that in context. In Australia, three in ten people (31.3 percent) had an inadequate magnesium intake from food and beverages in 2023, according to the Australian Bureau of Statistics. Comparable New Zealand survey data does not exist.
Nervous system, muscle function.
Magnesium Taurate
1,000 mg, providing 80 mg elemental magnesiumMagnesium taurate pairs magnesium with taurine. Magnesium has a role in normal nerve and muscle function, while taurine is involved in cellular signalling. That gives the pairing a plausible biological rationale, but direct human research on magnesium taurate itself is limited. This is where Sense comes in: we chose it for the reasoning behind the combination, not because the form has been proven to improve sleep. At 1,000 mg it provides 80 mg of elemental magnesium, a little over half the serving total.
Sleep quality, calm.
L-Glycine
600 mgGlycine is the simplest amino acid and one of the most abundant in the body, a building block for collagen and a neurotransmitter in its own right. We include 600 mg in the evening because studies in healthy adults have looked at glycine taken before bed and its relationship with subjective sleep quality and next day alertness.
Sleep, nervous system, muscle recovery.
Magnesium Bisglycinate
467 mg, providing 70 mg elemental magnesiumTwo glycine molecules chelated to one magnesium. This form is chosen for gentleness on the stomach and for the research attention magnesium has received in relation to sleep quality, muscle relaxation and normal nervous system function. At 467 mg of pure, unbuffered bisglycinate it provides 70 mg of elemental magnesium.
Relaxation without drowsiness.
L-Theanine
100 mgTheanine is the amino acid that gives green tea its calm character. At 100 mg it is included to support a relaxed, settled state without drowsiness, which suits the half hour before bed when the goal is to put the day down rather than to be sedated.
Evening calm.
Apigenin (98 percent pure)
50 mgApigenin is a flavonoid found in chamomile, parsley and celery. We include 50 mg at a purified 98 percent standard because chamomile has a long tradition as an evening herb and apigenin is the compound most associated with that use.
