Sarcosine is widely used in the personal care industry as a key ingredient in skincare products due to its ability to act as a gentle surfactant. It helps in cleansing the skin by removing dirt and oil without causing irritation, making it suitable for sensitive skin types. Additionally, sarcosine is utilized in the formulation of anti-aging products, as it promotes collagen production, improving skin elasticity and reducing the appearance of wrinkles.

In the pharmaceutical sector, sarcosine serves as a potential biomarker for prostate cancer detection and is studied for its therapeutic benefits in neurological disorders. Research suggests it may play a role in modulating neurotransmitters, offering applications in treating conditions like schizophrenia and depression. It acts as a glycine transporter inhibitor, which can enhance cognitive function and alleviate symptoms in certain mental health disorders.

Sarcosine also finds use in industrial applications, particularly as a corrosion inhibitor in metalworking fluids. It helps protect metal surfaces from rust and degradation, extending the lifespan of machinery and equipment. Furthermore, it is employed in the synthesis of various organic compounds, such as amino acids and pharmaceuticals, serving as a building block in chemical manufacturing processes.