SZ352 10ml – 10 vials

SZ352 (also known as SZ-352 or Super Z blend in certain compounding and research contexts) is a compounded injectable research formulation optimized as a potent nighttime relaxation, stress modulation, and sleep-support blend, combining GABAergic, calming, and circadian-regulating compounds with a local anesthetic in a sterile aqueous solution for subcutaneous or intramuscular administration. Typical per mL composition includes GABA (gamma-aminobutyric acid) 100 mg, Histidine (L-histidine) 100 mg, L-Theanine 50 mg, Taurine 100 mg, Melatonin 2 mg, and Lidocaine 0.2% (for mild local comfort during injection).
It functions through synergistic neurotransmitter modulation, inhibitory signaling enhancement, and sleep architecture support: GABA, the primary inhibitory neurotransmitter, binds to GABA_A and GABA_B receptors to hyperpolarize neurons, reduce cortical excitability, alleviate racing thoughts/anxiety, promote relaxation, and facilitate faster sleep onset with deeper non-REM stages; L-Theanine, a glutamate analog from tea, crosses the blood-brain barrier to increase alpha brain waves, boost GABA/dopamine/serotonin levels, and attenuate excitatory glutamate activity for calm focus transitioning to rest without sedation; Taurine provides osmoregulation, GABA_A receptor modulation, antioxidant protection, and calcium signaling balance to further dampen neuronal hyperactivity and support cardiovascular/neuronal stability during rest; Histidine contributes as a precursor for histamine (wake-promoting but in balance aids circadian regulation), potential copper chelation for antioxidant effects, or synergy in peptide-like calming pathways; Melatonin, the key pineal hormone, signals darkness to the suprachiasmatic nucleus, shortens sleep latency, enhances sleep maintenance, and supports restorative REM/NREM cycles while providing additional antioxidant and anti-inflammatory benefits; Lidocaine at low concentration minimizes injection-site discomfort without systemic effects.
In preclinical, wellness, and sleep research models (including studies on GABA/L-Theanine synergies showing reduced sleep latency and increased NREM/REM duration, as well as taurine/melatonin contributions to stress resilience and circadian alignment), this multi-component blend is investigated for promoting rapid relaxation, shortening time to sleep onset, improving overall sleep quality and duration, reducing nighttime awakenings or hyperarousal from stress/anxiety, attenuating cortisol responses, and supporting restorative physiology during rest—often as an advanced alternative to oral supplements or basic melatonin formulas. The injectable route offers superior bioavailability (especially for GABA and L-Theanine, which face GI and BBB challenges orally) for more direct CNS effects.
SZ352 is utilized in research to investigate synergistic inhibitory neurotransmitter pathways (e.g., GABAergic enhancement with L-Theanine/taurine modulation), mechanisms of combined GABA/theanine/melatonin in sleep latency reduction and NREM/REM architecture improvement, roles of histidine and taurine in neuronal protection and stress-sleep axes, circadian and antioxidant synergies in recovery models, supportive strategies for insomnia, anxiety-related sleep disturbances, post-stress recovery, shift-work or jet-lag protocols, and the broader impacts of high-bioavailability multi-agonist blends on brain wave patterns (e.g., increased alpha/delta), neuronal calmness, redox homeostasis, and long-term restorative sleep physiology.