Centenarius Nutrition proudly presents our pharmaceutical-grade Glycine, sourced directly from Japan. This essential amino acid supports brain and cognitive function, aids muscle growth, calms the nervous system to reduce anxiety, and promotes deep, restful sleep. Although classified as “non-essential,” glycine is the most abundant amino
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Calming
I was surprised at how clean the ingredients are an incredibly calming. I take half a scoop in the morning and half a scoop in the evening along with the magnesium capsules.
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Bita · March 29, 2026
Glycine
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Amina · June 4, 2026
Better Sleep
I love this product and use it nightly about an hour before bed. It allows me to fall asleep and stay asleep.