Tannins and o-dihydroxyphenols contents of different species of Stachys L. and Betonica L. genera occuring in Poland were compared. Phenolic acids composition was also investigated. Caffeic, sinapic, protocatcchuic and chlorogenic acids were presented in all investigated species. p-Coumaric acid was found only in Stachys recta and S. sylvatica. Rosmarinic acid was presented in most of the species, except one - Stachys annua.