Does propolis contain tannins?
Mayworm MA, Lima CA, Tomba AC, Fernandes-Silva CC, Salatino ML, Salatino A.
Mayworm MA, et al.
Evid Based Complement Alternat Med. 2014;2014:613647. doi: 10.1155/2014/613647. Epub 2014 May 14.
Evid Based Complement Alternat Med. 2014.
PMID: 24959188
Free PMC article.