Glycine is a non-essential amino acid, meaning the body can produce it, but demands may increase during periods of stress, physical exertion or poor sleep. It plays roles in neurotransmission, detoxification pathways, protein synthesis and connective tissue structure. Supplemental glycine provides a simple way to support these foundational processes when lifestyle or dietary intake may not fully meet demand.

Individuals with an interest in nutrients involved in nervous system function and relaxation-related physiology.

Those wishing to nurture restful sleep patterns and overnight renewal.

People looking to include amino acid support as part of their connective tissue and metabolic health routine.

Anyone who values a simple, single-ingredient supplement to complement daily wellness.

Metabolics Glycine is made with purity, simplicity, and real nutritional purpose in mind. Each capsule delivers high-quality glycine without unnecessary fillers or additives, offering consistent support for daily use. Produced to exacting quality standards and guided by practitioner expertise, it provides dependable amino acid support that is clean, effective, and uncomplicated.

Glycine comprises approximately one-third of the total amino acid content in collagen, the most abundant protein in the body. It helps give collagen stability and flexibility by forming repeating sequences (glycine-proline-X), which allow for tight helical structures. Collagen is a key structural component of the skin, tendons, ligaments, and cartilage.

Beyond its structural role, glycine is involved in key metabolic pathways. It serves as a precursor for the synthesis of haem, the iron-containing component of haemoglobin, which is essential for oxygen transport in the blood. Additionally, glycine plays a role in the production of glutathione, a powerful antioxidant that helps protect cells from oxidative stress.

Another important function of glycine is its involvement in creatine synthesis. Alongside arginine and methionine, glycine is required for the formation of creatine, a compound stored in muscles and used for quick bursts of energy during movement and muscle contraction.

Glycine functions as an inhibitory neurotransmitter in the central nervous system, having a role in neurotransmission and neural signalling processes. It is involved in pathways that influence physiological states related to relaxation and sleep regulation. Additionally, glycine participates in biochemical mechanisms linked to immune signalling and metabolic processes.