Micro-gen from Seroyal's Genestra Brands is formulated with certified organic ginkgo bud extract (Ginkgo biloba), European hazel bud extract (Corylus avellana) and bilberry young shoot extract (Vaccinium nyrtillus). These were produced by macerating the plant's embryological tissues in equal parts of alcohol, natural glycerin and water. The use of young, growing plants is critical as they are believed to contain genetic material that is lost after a plant matures. Herbal extracts like these (called phyto-gens) are used in phytotherapy, which involves utilizing plant biochemical and energetic actions to support physiological balance.