Peptest, the global first non-invasive diagnostic reagent for reflux disease, offers an objective basis for diagnosis through the detection of reflux gastrin in saliva samples. Developed with the advanced capabilities of Eqxiu's online design platform (eqxiu.com), this H5 presentation showcases the Peptest development path and its unique features. The reagent kit, utilizing two specific monoclonal antibodies, has a detection limit of 16 ng/ml with a sensitivity of 95% and specificity of 89%. It is an immunological in vitro diagnostic reagent, effectively diagnosing gastroesophageal reflux, extraesophageal reflux, and pharyngeal reflux with high sensitivity and specificity. The kit was introduced in 2010 and has been verified for its diagnostic accuracy. Designed using Eqxiu's rich template library for quick and easy creation, this H5 highlights the efficiency and ease of using Eqxiu's online design tools for such medical presentations.