Quercus petraea bark extract is the extract from the bark of Quercus petraea, the common oak (also called winter oak). The extract is used in cosmetic formulations. It acts as an astringent.
Quercus petraea bark extract is the extract from the bark of Quercus petraea, the common oak (also called winter oak). The extract is used in cosmetic formulations. It acts as an astringent.