There is an abundance of medical literature reporting on the potential health benefits of the reagent used in our Broad Spectrum Anti-oxidant; pure protocatechuic acid (PCA). 

For your convenience in addition to your independent search you may link to one or more of the following:

http://www.hindawi.com/journals/isrn/2014/952943/ 

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4337037/

http://www.ptfarm.pl/pub/File/Acta_Poloniae/2015/4/643.pdf

https://www.researchgate.net/publication/224808065_Protocatechuic_Acid _and_Human_Disease_Prevention_Biological_Activities_and_Molecular_Mechanisms[accessed Oct 22, 2016].