D. Ghosh and P. Mukherjee. Natural Medicines, Clinical Efficacy, Safety and Quality. Chapter 15 : ENZOGENOL® Pine Bark Extract: From an ancient remedy to a natural neurotherapeutic 

Walter, A. 2017. Effect of Enzogenol® Supplementation on Cognitive, Executive, and Vestibular/Balance Functioning in Chronic Phase of Concussion. Developmental Neuropsychology 42:93-103

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Wood, J. E., Senthilmohan, S. T., Peskin, A. V., 2002. Antioxidant activity of procyanidin-containing plant extracts at different phs. Food Chemistry 77, 155-161.

Senthilmohan, S. T., Zhang, J., Stanley, R. A., 2003. Effects of flavonoid extract Enzogenol® with vitamin C on protein oxidation and DNA damage in older human subjects. Nutrition Research 23, 1199-1210.

Young, J. M., Shand, B. I., McGregor, P. M., Scott, R. S., Frampton, C. M., 2006. Comparative effects of enzogenol and vitamin c supplementation versus vitamin c alone on endothelial function and biochemical markers of oxidative stress and inflammation in chronic smokers. Free Radical Research 40(1), 85-94.

Pipingas A, et al, 2007, Journal of Clinical EEG & Neuroscience 16th Annual Conference of the Australasian Society for Psychophysiology (Dec 9-11, 2006)

Bang, C-Y. 2014. Enzogenol improves diabetes-related metabolic change in C57BL/KsJdb/db mice, a model of type 2 diabetes mellitus. The Journal of Pharmacy and Pharmacology 66: 875-85

Kim D S et al, 2010, Journal of Agricultural and Food Chemistry 58: 7088

Theadom, A. 2013, Enzogenol for cognitive functioning in traumatic brain injury: a pilot placebo-controlled RCT. European Journal of Neurology 20:1135-44

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The effect of Enzogenol on parameters of eye health were published in the following peer-reviewed research article: Frevel, M. A., Pipingas, A., Grigsby, W. J., Frampton, C. M., Gilchrist, N. L., 2012. Production, composition and toxicology studies of enzogenol® pinus radiata bark extract. Food and Chemical Toxicology 50, 4316-4324.

Attention & Behaviour. 11 case studies. https://www.enzogenol.com/research/attention-behaviour