About Sarcosine Tablets

Sarcosine is a naturally occurring amino acid derivative, also known as N-methylglycine, that supports healthy NMDA receptor signaling by inhibiting glycine reuptake. This chewable tablet formulation provides 500mg of pure sarcosine, offering superior bioavailability compared to D-serine while supporting cognitive function and healthy mood balance through enhanced neurotransmitter activity.

Our Sarcosine Story

We explored the NMDA receptor support category and found most options centered around glycine or D-serine, both with significant limitations. Glycine requires large, impractical doses to achieve meaningful effects, while D-serine has poor oral bioavailability and inconsistent absorption profiles. We needed a more elegant solution that could deliver the same NMDA receptor enhancement with smaller, more convenient dosing.

Our research led us to sarcosine, which functions as a selective glycine transporter inhibitor, specifically targeting the GlyT1 transporter expressed on glial cells. By blocking glycine reuptake rather than simply adding more glycine to the system, sarcosine creates more sustained and efficient NMDA receptor signaling. We developed our chewable tablet format to bypass first-pass metabolism concerns and ensure consistent delivery of this promising neurotransmitter supplement.

Benefits

• Supports Healthy Mood Balance: Sarcosine enhances neurotransmitter signaling by inhibiting the GlyT1 glycine transporter, allowing more glycine to remain active at NMDA receptors and supporting feelings of well-being and balanced mood.
• Supports Cognitive Function: Sarcosine targets GlyT1 transporters on glial cells, supporting NMDA receptor activity in brain regions important for learning and mental performance while supporting cognitive processing and mental clarity.
• Supports Healthy Stress Response: The modulation of glycine availability through GlyT1 inhibition helps maintain balanced glutamate-NMDA signaling pathways that are important for healthy stress management and emotional balance.
• Supports Healthy Brain Function: Sarcosine's conversion back to glycine through PIPOX and SARDH enzymes creates a sustained cycle of amino acid availability that supports healthy neural communication and overall brain function.

These chewable tablets offer better bioavailability than D-serine while requiring smaller, more practical doses. Human studies with 1-2 grams of sarcosine show increased motivation and support for mood balance, making this an effective choice for natural support of mental well-being and cognitive function.

Quality and Standardization

• Third-Party Verified Purity: Our sarcosine tablets undergo rigorous testing by independent, ISO-accredited laboratories to confirm identity, purity, and potency, with detailed COA results available for every production lot.
• Chewable Tablet Formulation: Each 500mg tablet features a convenient chewable format that dissolves easily without water, providing consistent dosing and enhanced convenience for daily supplementation.
• Lab-Tested N-Methylglycine: We source pharmaceutical-grade sarcosine that meets strict specifications for N-methylglycine content, ensuring optimal bioavailability and reliable glycine transporter inhibition activity.
• cGMP Manufacturing Standards: Produced in FDA-registered, cGMP-certified facilities using stringent quality control protocols to guarantee consistent tablet weight, dissolution, and active ingredient distribution across every batch.

Mechanism of Action

• GlyT1 Transporter Inhibition: Sarcosine selectively blocks the GlyT1 glycine transporter, which is primarily expressed on glial cells and plays a crucial role in regulating NMDA receptor function by controlling glycine availability at synaptic sites.
• Enhanced Synaptic Glycine Levels: By preventing glycine reuptake through GlyT1 inhibition, sarcosine increases the concentration of glycine available at NMDA receptor sites, leading to enhanced glutamatergic neurotransmission and healthy synaptic activity.
• NMDA Receptor Support: Increased synaptic glycine acts as a co-agonist at NMDA receptors, supporting calcium influx and downstream signaling cascades that support learning, memory formation, and neurotransmitter balance.
• Metabolic Conversion to Glycine: Sarcosine undergoes enzymatic breakdown via pipecolic acid oxidase (PIPOX) or sarcosine dehydrogenase (SARDH), converting to glycine and providing an additional source of this important amino acid for ongoing neurological processes.

Overview of the Science

Research indicates that sarcosine supplementation produces measurable effects on neurotransmitter function and subjective well-being [1]. Studies examining sarcosine's role as a GlyT1 transporter inhibitor demonstrate its ability to enhance NMDA receptor signaling by preventing glycine reuptake, which supports both cognitive performance and mood regulation [2]. Clinical investigations have shown that sarcosine supplementation at doses of 1-2 grams daily resulted in participants reporting increased motivation and reduced irritability, suggesting practical benefits for everyday mental wellness [3].

Research suggests the compound supports comfort and physical ease, with preclinical studies demonstrating significant effects through prefrontal cortex and spinal cord modulation [3]. Additional studies have explored sarcosine's mood-supporting properties, showing that long-term supplementation promotes sustained improvements in stress resilience and emotional stability [4]. Meta-analyses of clinical trials continue to support sarcosine's cognitive enhancement effects, particularly in areas of attention and executive function [5].

[1] Pei JC et al. J Psychopharmacol. 2019;33(10):1288-1302.

[2] Lin CY et al. World J Biol Psychiatry. 2017;18(5):357-368.

[3] Centeno MV et al. [...]. 2009;145(1-2):176-183.

[4] Chen KT et al. Behav Brain Res. 2017;316:1-10.

[5] Chang CH et al. J Psychopharmacol. 2020;34(5):495-505.

Ingredients

Sarcosine:

• N-methylglycine
• 500mg per tablet
• Pure, pharmaceutical-grade compound

Our sarcosine tablets provide the full 500mg dose used in research studies, delivered in a convenient, precisely dosed format. This pharmaceutical-grade compound requires careful sourcing and testing to ensure purity and potency, as even trace impurities can affect its bioavailability and effectiveness. Each batch undergoes rigorous third-party testing to verify identity, purity, and absence of contaminants, ensuring you receive exactly what the label promises.