A combination that cofactors in over 300 enzymatic reactions - including the ones that regulate stress response, muscle relaxation, and sleep architecture.

Magnesium supports inhibitory neurotransmission and healthy sleep architecture through several mechanisms. It acts as a cofactor for the enzymes and ion channels that regulate GABAergic signaling and NMDA receptor function, and it promotes the slow-wave activity linked to restorative deep sleep. Clinical data show modest improvements in sleep duration and subjective sleep quality with supplementation, particularly when baseline intake is low — so 100 mg of elemental magnesium provides physiological support for inhibitory tone and slow-wave sleep.

Vitamin B6 (pyridoxine, converted to its active form pyridoxal phosphate) is an essential cofactor in the conversion of tryptophan to 5-HTP and onward to serotonin and melatonin. A modest amount of B6 supports the body's own melatonin synthesis, especially alongside ingredients that help keep tryptophan on the serotonin pathway. It works as a supporting micronutrient to reinforce circadian signaling and neurotransmitter balance, while staying within typical dietary reference intakes.

https://pubmed.ncbi.nlm.nih.gov/30562392/

https://pubmed.ncbi.nlm.nih.gov/38745424/

https://pubmed.ncbi.nlm.nih.gov/38703902/

https://pubmed.ncbi.nlm.nih.gov/11794633/
https://pubmed.ncbi.nlm.nih.gov/30562392/
https://pmc.ncbi.nlm.nih.gov/articles/PMC9292249/