Tianeptine sulfate is more stable than tianeptine sodium which is notoriously unstable; 

it reacts to both atmospheric moisture and to light. Tianeptine sulfate on the other hand does not absorb the water from air so it does not clump.

Tianeptine sulfate is soluble and cam be mixed easily with water.

Tianeptine sulfate is classified as a selective serotonin reuptake enhancer (SSRE) used to treat depression. 

Tianeptine was developed in France in the 1960s and has been used throughout the last part of the 2000s. 

Tianeptine sulfate improves brain neuroplasticity and decreases depression. 

Neuroplasticity is the brain's ability to adapt and change when learning; contributing to better cognitive performance and improved learning ability.